{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE TypeFamilies #-}
module Futhark.CodeGen.ImpGen.GPU.Base
( KernelConstants (..),
threadOperations,
keyWithEntryPoint,
CallKernelGen,
InKernelGen,
Locks (..),
HostEnv (..),
Target (..),
KernelEnv (..),
groupReduce,
groupScan,
groupLoop,
isActive,
sKernel,
sKernelThread,
KernelAttrs (..),
defKernelAttrs,
sCopyKernel,
lvlKernelAttrs,
allocLocal,
kernelAlloc,
compileThreadResult,
virtualiseGroups,
kernelLoop,
groupCoverSpace,
fenceForArrays,
updateAcc,
sReplicate,
sIota,
sRotateKernel,
sCopy,
AtomicBinOp,
atomicUpdateLocking,
Locking (..),
AtomicUpdate (..),
DoAtomicUpdate,
)
where
import Control.Monad.Except
import Data.List (foldl')
import Data.Map.Strict qualified as M
import Data.Maybe
import Futhark.CodeGen.ImpCode.GPU qualified as Imp
import Futhark.CodeGen.ImpGen
import Futhark.Error
import Futhark.IR.GPUMem
import Futhark.IR.Mem.IxFun qualified as IxFun
import Futhark.MonadFreshNames
import Futhark.Transform.Rename
import Futhark.Util (dropLast, nubOrd, splitFromEnd)
import Futhark.Util.IntegralExp (divUp, quot, rem)
import Prelude hiding (quot, rem)
data Target = CUDA | OpenCL
data Locks = Locks
{ Locks -> VName
locksArray :: VName,
Locks -> Int
locksCount :: Int
}
data HostEnv = HostEnv
{ HostEnv -> AtomicBinOp
hostAtomics :: AtomicBinOp,
HostEnv -> Target
hostTarget :: Target,
HostEnv -> Map VName Locks
hostLocks :: M.Map VName Locks
}
data KernelEnv = KernelEnv
{ KernelEnv -> AtomicBinOp
kernelAtomics :: AtomicBinOp,
KernelEnv -> KernelConstants
kernelConstants :: KernelConstants,
KernelEnv -> Map VName Locks
kernelLocks :: M.Map VName Locks
}
type CallKernelGen = ImpM GPUMem HostEnv Imp.HostOp
type InKernelGen = ImpM GPUMem KernelEnv Imp.KernelOp
data KernelConstants = KernelConstants
{ KernelConstants -> TExp Int32
kernelGlobalThreadId :: Imp.TExp Int32,
KernelConstants -> TExp Int32
kernelLocalThreadId :: Imp.TExp Int32,
KernelConstants -> TExp Int32
kernelGroupId :: Imp.TExp Int32,
KernelConstants -> VName
kernelGlobalThreadIdVar :: VName,
KernelConstants -> VName
kernelLocalThreadIdVar :: VName,
KernelConstants -> VName
kernelGroupIdVar :: VName,
KernelConstants -> Count NumGroups SubExp
kernelNumGroupsCount :: Count NumGroups SubExp,
KernelConstants -> Count GroupSize SubExp
kernelGroupSizeCount :: Count GroupSize SubExp,
KernelConstants -> TPrimExp Int64 VName
kernelNumGroups :: Imp.TExp Int64,
KernelConstants -> TPrimExp Int64 VName
kernelGroupSize :: Imp.TExp Int64,
KernelConstants -> TExp Int32
kernelNumThreads :: Imp.TExp Int32,
KernelConstants -> TExp Int32
kernelWaveSize :: Imp.TExp Int32,
KernelConstants -> Map [SubExp] [TExp Int32]
kernelLocalIdMap :: M.Map [SubExp] [Imp.TExp Int32],
KernelConstants -> Map [SubExp] (TExp Int32)
kernelChunkItersMap :: M.Map [SubExp] (Imp.TExp Int32)
}
keyWithEntryPoint :: Maybe Name -> Name -> Name
keyWithEntryPoint :: Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname Name
key =
[Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$ forall b a. b -> (a -> b) -> Maybe a -> b
maybe [Char]
"" ((forall a. [a] -> [a] -> [a]
++ [Char]
".") forall b c a. (b -> c) -> (a -> b) -> a -> c
. Name -> [Char]
nameToString) Maybe Name
fname forall a. [a] -> [a] -> [a]
++ Name -> [Char]
nameToString Name
key
allocLocal :: AllocCompiler GPUMem r Imp.KernelOp
allocLocal :: forall r. AllocCompiler GPUMem r KernelOp
allocLocal VName
mem Count Bytes (TPrimExp Int64 VName)
size =
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ VName -> Count Bytes (TPrimExp Int64 VName) -> KernelOp
Imp.LocalAlloc VName
mem Count Bytes (TPrimExp Int64 VName)
size
kernelAlloc ::
Pat LetDecMem ->
SubExp ->
Space ->
InKernelGen ()
kernelAlloc :: Pat LParamMem -> SubExp -> Space -> InKernelGen ()
kernelAlloc (Pat [PatElem LParamMem
_]) SubExp
_ ScalarSpace {} =
forall (f :: * -> *) a. Applicative f => a -> f a
pure ()
kernelAlloc (Pat [PatElem LParamMem
mem]) SubExp
size (Space [Char]
"local") =
forall r. AllocCompiler GPUMem r KernelOp
allocLocal (forall dec. PatElem dec -> VName
patElemName PatElem LParamMem
mem) forall a b. (a -> b) -> a -> b
$ forall a. a -> Count Bytes a
Imp.bytes forall a b. (a -> b) -> a -> b
$ SubExp -> TPrimExp Int64 VName
pe64 SubExp
size
kernelAlloc (Pat [PatElem LParamMem
mem]) SubExp
_ Space
_ =
forall a. [Char] -> a
compilerLimitationS forall a b. (a -> b) -> a -> b
$ [Char]
"Cannot allocate memory block " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString PatElem LParamMem
mem forall a. [a] -> [a] -> [a]
++ [Char]
" in kernel."
kernelAlloc Pat LParamMem
dest SubExp
_ Space
_ =
forall a. HasCallStack => [Char] -> a
error forall a b. (a -> b) -> a -> b
$ [Char]
"Invalid target for in-kernel allocation: " forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show Pat LParamMem
dest
updateAcc :: VName -> [SubExp] -> [SubExp] -> InKernelGen ()
updateAcc :: VName -> [SubExp] -> [SubExp] -> InKernelGen ()
updateAcc VName
acc [SubExp]
is [SubExp]
vs = forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"UpdateAcc" forall a b. (a -> b) -> a -> b
$ do
let is' :: [TPrimExp Int64 VName]
is' = forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 [SubExp]
is
(VName
c, Space
space, [VName]
arrs, [TPrimExp Int64 VName]
dims, Maybe (Lambda GPUMem)
op) <- forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> ImpM
rep
r
op
(VName, Space, [VName], [TPrimExp Int64 VName], Maybe (Lambda rep))
lookupAcc VName
acc [TPrimExp Int64 VName]
is'
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (Slice (TPrimExp Int64 VName) -> [TPrimExp Int64 VName] -> TExp Bool
inBounds (forall d. [DimIndex d] -> Slice d
Slice (forall a b. (a -> b) -> [a] -> [b]
map forall d. d -> DimIndex d
DimFix [TPrimExp Int64 VName]
is')) [TPrimExp Int64 VName]
dims) forall a b. (a -> b) -> a -> b
$
case Maybe (Lambda GPUMem)
op of
Maybe (Lambda GPUMem)
Nothing ->
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [VName]
arrs [SubExp]
vs) forall a b. (a -> b) -> a -> b
$ \(VName
arr, SubExp
v) -> forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
arr [TPrimExp Int64 VName]
is' SubExp
v []
Just Lambda GPUMem
lam -> do
forall {k} (rep :: k) inner r op.
Mem rep inner =>
[LParam rep] -> ImpM rep r op ()
dLParams forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam
let ([VName]
_x_params, [VName]
y_params) =
forall a. Int -> [a] -> ([a], [a])
splitAt (forall (t :: * -> *) a. Foldable t => t a -> Int
length [SubExp]
vs) forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map forall dec. Param dec -> VName
paramName forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [VName]
y_params [SubExp]
vs) forall a b. (a -> b) -> a -> b
$ \(VName
yp, SubExp
v) -> forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
yp [] SubExp
v []
AtomicBinOp
atomics <- KernelEnv -> AtomicBinOp
kernelAtomics forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
case AtomicBinOp -> Lambda GPUMem -> AtomicUpdate GPUMem KernelEnv
atomicUpdateLocking AtomicBinOp
atomics Lambda GPUMem
lam of
AtomicPrim DoAtomicUpdate GPUMem KernelEnv
f -> DoAtomicUpdate GPUMem KernelEnv
f Space
space [VName]
arrs [TPrimExp Int64 VName]
is'
AtomicCAS DoAtomicUpdate GPUMem KernelEnv
f -> DoAtomicUpdate GPUMem KernelEnv
f Space
space [VName]
arrs [TPrimExp Int64 VName]
is'
AtomicLocking Locking -> DoAtomicUpdate GPUMem KernelEnv
f -> do
Maybe Locks
c_locks <- forall k a. Ord k => k -> Map k a -> Maybe a
M.lookup VName
c forall b c a. (b -> c) -> (a -> b) -> a -> c
. KernelEnv -> Map VName Locks
kernelLocks forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
case Maybe Locks
c_locks of
Just (Locks VName
locks Int
num_locks) -> do
let locking :: Locking
locking =
VName
-> TExp Int32
-> TExp Int32
-> TExp Int32
-> ([TPrimExp Int64 VName] -> [TPrimExp Int64 VName])
-> Locking
Locking VName
locks TExp Int32
0 TExp Int32
1 TExp Int32
0 forall a b. (a -> b) -> a -> b
$
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall b c a. (b -> c) -> (a -> b) -> a -> c
. (forall e. IntegralExp e => e -> e -> e
`rem` forall a b. (Integral a, Num b) => a -> b
fromIntegral Int
num_locks) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall num. IntegralExp num => [num] -> [num] -> num
flattenIndex [TPrimExp Int64 VName]
dims
Locking -> DoAtomicUpdate GPUMem KernelEnv
f Locking
locking Space
space [VName]
arrs [TPrimExp Int64 VName]
is'
Maybe Locks
Nothing ->
forall a. HasCallStack => [Char] -> a
error forall a b. (a -> b) -> a -> b
$ [Char]
"Missing locks for " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString VName
acc
compileThreadExp :: ExpCompiler GPUMem KernelEnv Imp.KernelOp
compileThreadExp :: ExpCompiler GPUMem KernelEnv KernelOp
compileThreadExp (Pat [PatElem (LetDec GPUMem)
pe]) (BasicOp (Opaque OpaqueOp
_ SubExp
se)) =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. PatElem dec -> VName
patElemName PatElem (LetDec GPUMem)
pe) [] SubExp
se []
compileThreadExp (Pat [PatElem (LetDec GPUMem)
dest]) (BasicOp (ArrayLit [SubExp]
es TypeBase Shape NoUniqueness
_)) =
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Int64
0 ..] [SubExp]
es) forall a b. (a -> b) -> a -> b
$ \(Int64
i, SubExp
e) ->
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix (forall dec. PatElem dec -> VName
patElemName PatElem (LetDec GPUMem)
dest) [forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int64
i :: Int64)] SubExp
e []
compileThreadExp Pat (LetDec GPUMem)
_ (BasicOp (UpdateAcc VName
acc [SubExp]
is [SubExp]
vs)) =
VName -> [SubExp] -> [SubExp] -> InKernelGen ()
updateAcc VName
acc [SubExp]
is [SubExp]
vs
compileThreadExp Pat (LetDec GPUMem)
dest Exp GPUMem
e =
forall {k} (rep :: k) inner r op.
Mem rep inner =>
Pat (LetDec rep) -> Exp rep -> ImpM rep r op ()
defCompileExp Pat (LetDec GPUMem)
dest Exp GPUMem
e
kernelLoop ::
IntExp t =>
Imp.TExp t ->
Imp.TExp t ->
Imp.TExp t ->
(Imp.TExp t -> InKernelGen ()) ->
InKernelGen ()
kernelLoop :: forall {k} (t :: k).
IntExp t =>
TExp t
-> TExp t -> TExp t -> (TExp t -> InKernelGen ()) -> InKernelGen ()
kernelLoop TExp t
tid TExp t
num_threads TExp t
n TExp t -> InKernelGen ()
f =
forall {k} (rep :: k) r op a.
Operations rep r op -> ImpM rep r op a -> ImpM rep r op a
localOps Operations GPUMem KernelEnv KernelOp
threadOperations forall a b. (a -> b) -> a -> b
$
if TExp t
n forall a. Eq a => a -> a -> Bool
== TExp t
num_threads
then TExp t -> InKernelGen ()
f TExp t
tid
else do
TExp t
num_chunks <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"num_chunks" forall a b. (a -> b) -> a -> b
$ TExp t
n forall e. IntegralExp e => e -> e -> e
`divUp` TExp t
num_threads
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char]
-> TExp t -> (TExp t -> ImpM rep r op ()) -> ImpM rep r op ()
sFor [Char]
"chunk_i" TExp t
num_chunks forall a b. (a -> b) -> a -> b
$ \TExp t
chunk_i -> do
TExp t
i <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"i" forall a b. (a -> b) -> a -> b
$ TExp t
chunk_i forall a. Num a => a -> a -> a
* TExp t
num_threads forall a. Num a => a -> a -> a
+ TExp t
tid
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp t
i forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp t
n) forall a b. (a -> b) -> a -> b
$ TExp t -> InKernelGen ()
f TExp t
i
groupLoop ::
IntExp t =>
Imp.TExp t ->
(Imp.TExp t -> InKernelGen ()) ->
InKernelGen ()
groupLoop :: forall {k} (t :: k).
IntExp t =>
TExp t -> (TExp t -> InKernelGen ()) -> InKernelGen ()
groupLoop TExp t
n TExp t -> InKernelGen ()
f = do
KernelConstants
constants <- KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
forall {k} (t :: k).
IntExp t =>
TExp t
-> TExp t -> TExp t -> (TExp t -> InKernelGen ()) -> InKernelGen ()
kernelLoop
(KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants forall {k1} {k2} (to :: k1) (from :: k2) v.
(IntExp to, IntExp from) =>
TPrimExp from v -> TPrimExp to v -> TPrimExp to v
`sExtAs` TExp t
n)
(KernelConstants -> TPrimExp Int64 VName
kernelGroupSize KernelConstants
constants forall {k1} {k2} (to :: k1) (from :: k2) v.
(IntExp to, IntExp from) =>
TPrimExp from v -> TPrimExp to v -> TPrimExp to v
`sExtAs` TExp t
n)
TExp t
n
TExp t -> InKernelGen ()
f
groupCoverSpace ::
IntExp t =>
[Imp.TExp t] ->
([Imp.TExp t] -> InKernelGen ()) ->
InKernelGen ()
groupCoverSpace :: forall {k} (t :: k).
IntExp t =>
[TExp t] -> ([TExp t] -> InKernelGen ()) -> InKernelGen ()
groupCoverSpace [TExp t]
ds [TExp t] -> InKernelGen ()
f = do
KernelConstants
constants <- KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
let group_size :: TPrimExp Int64 VName
group_size = KernelConstants -> TPrimExp Int64 VName
kernelGroupSize KernelConstants
constants
case forall a. Int -> [a] -> ([a], [a])
splitFromEnd Int
1 [TExp t]
ds of
([TExp t]
ds', [TExp t
last_d])
| TExp t
last_d forall a. Eq a => a -> a -> Bool
== (TPrimExp Int64 VName
group_size forall {k1} {k2} (to :: k1) (from :: k2) v.
(IntExp to, IntExp from) =>
TPrimExp from v -> TPrimExp to v -> TPrimExp to v
`sExtAs` TExp t
last_d) -> do
let ltid :: TExp t
ltid = KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants forall {k1} {k2} (to :: k1) (from :: k2) v.
(IntExp to, IntExp from) =>
TPrimExp from v -> TPrimExp to v -> TPrimExp to v
`sExtAs` TExp t
last_d
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[TExp t] -> ([TExp t] -> ImpM rep r op ()) -> ImpM rep r op ()
sLoopSpace [TExp t]
ds' forall a b. (a -> b) -> a -> b
$ \[TExp t]
ds_is ->
[TExp t] -> InKernelGen ()
f forall a b. (a -> b) -> a -> b
$ [TExp t]
ds_is forall a. [a] -> [a] -> [a]
++ [TExp t
ltid]
([TExp t], [TExp t])
_ ->
forall {k} (t :: k).
IntExp t =>
TExp t -> (TExp t -> InKernelGen ()) -> InKernelGen ()
groupLoop (forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
product [TExp t]
ds) forall a b. (a -> b) -> a -> b
$ [TExp t] -> InKernelGen ()
f forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall num. IntegralExp num => [num] -> num -> [num]
unflattenIndex [TExp t]
ds
fenceForSpace :: Space -> Imp.Fence
fenceForSpace :: Space -> Fence
fenceForSpace (Space [Char]
"local") = Fence
Imp.FenceLocal
fenceForSpace Space
_ = Fence
Imp.FenceGlobal
fenceForArrays :: [VName] -> InKernelGen Imp.Fence
fenceForArrays :: [VName] -> InKernelGen Fence
fenceForArrays = forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall a. Ord a => a -> a -> a
max Fence
Imp.FenceLocal) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM forall {k} {rep :: k} {r} {op}. VName -> ImpM rep r op Fence
need
where
need :: VName -> ImpM rep r op Fence
need VName
arr =
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (Space -> Fence
fenceForSpace forall b c a. (b -> c) -> (a -> b) -> a -> c
. MemEntry -> Space
entryMemSpace)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op. VName -> ImpM rep r op MemEntry
lookupMemory
forall b c a. (b -> c) -> (a -> b) -> a -> c
. MemLoc -> VName
memLocName
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ArrayEntry -> MemLoc
entryArrayLoc
forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< forall {k} (rep :: k) r op. VName -> ImpM rep r op ArrayEntry
lookupArray VName
arr
inBlockScan ::
KernelConstants ->
Maybe (Imp.TExp Int32 -> Imp.TExp Int32 -> Imp.TExp Bool) ->
Imp.TExp Int64 ->
Imp.TExp Int32 ->
Imp.TExp Int32 ->
Imp.TExp Bool ->
[VName] ->
InKernelGen () ->
Lambda GPUMem ->
InKernelGen ()
inBlockScan :: KernelConstants
-> Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TPrimExp Int64 VName
-> TExp Int32
-> TExp Int32
-> TExp Bool
-> [VName]
-> InKernelGen ()
-> Lambda GPUMem
-> InKernelGen ()
inBlockScan KernelConstants
constants Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag TPrimExp Int64 VName
arrs_full_size TExp Int32
lockstep_width TExp Int32
block_size TExp Bool
active [VName]
arrs InKernelGen ()
barrier Lambda GPUMem
scan_lam = forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile forall a b. (a -> b) -> a -> b
$ do
TV Int32
skip_threads <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"skip_threads" PrimType
int32
let actual_params :: [LParam GPUMem]
actual_params = forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
scan_lam
([Param LParamMem]
x_params, [Param LParamMem]
y_params) =
forall a. Int -> [a] -> ([a], [a])
splitAt (forall (t :: * -> *) a. Foldable t => t a -> Int
length [LParam GPUMem]
actual_params forall a. Integral a => a -> a -> a
`div` Int
2) [LParam GPUMem]
actual_params
y_to_x :: InKernelGen ()
y_to_x =
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [Param LParamMem]
y_params) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, Param LParamMem
y) ->
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (forall shape u. TypeBase shape u -> Bool
primType (forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
x)) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
x) [] (VName -> SubExp
Var (forall dec. Param dec -> VName
paramName Param LParamMem
y)) []
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"read input for in-block scan" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
active forall a b. (a -> b) -> a -> b
$ do
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
readInitial [Param LParamMem]
y_params [VName]
arrs
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp Int32
in_block_id forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
0) InKernelGen ()
y_to_x
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
array_scan InKernelGen ()
barrier
let op_to_x :: TExp Bool -> InKernelGen ()
op_to_x TExp Bool
in_block_thread_active
| Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
Nothing <- Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag =
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
in_block_thread_active forall a b. (a -> b) -> a -> b
$
forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
x_params forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
scan_lam
| Just TExp Int32 -> TExp Int32 -> TExp Bool
flag_true <- Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag = do
TExp Bool
inactive <-
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"inactive" forall a b. (a -> b) -> a -> b
$ TExp Int32 -> TExp Int32 -> TExp Bool
flag_true (TExp Int32
ltid32 forall a. Num a => a -> a -> a
- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads) TExp Int32
ltid32
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp Bool
in_block_thread_active forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
inactive) forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [Param LParamMem]
y_params) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, Param LParamMem
y) ->
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
x) [] (VName -> SubExp
Var (forall dec. Param dec -> VName
paramName Param LParamMem
y)) []
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
array_scan InKernelGen ()
barrier
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
in_block_thread_active forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
inactive forall a b. (a -> b) -> a -> b
$
forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
x_params forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
scan_lam
maybeBarrier :: InKernelGen ()
maybeBarrier =
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen
(TExp Int32
lockstep_width forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<=. forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads)
InKernelGen ()
barrier
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"in-block scan (hopefully no barriers needed)" forall a b. (a -> b) -> a -> b
$ do
TV Int32
skip_threads forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- TExp Int32
1
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhile (forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp Int32
block_size) forall a b. (a -> b) -> a -> b
$ do
TExp Bool
thread_active <-
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"thread_active" forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<=. TExp Int32
in_block_id forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
active
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
thread_active forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"read operands" forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ (TPrimExp Int64 VName -> Param LParamMem -> VName -> InKernelGen ()
readParam (forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads)) [Param LParamMem]
x_params [VName]
arrs
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"perform operation" forall a b. (a -> b) -> a -> b
$ TExp Bool -> InKernelGen ()
op_to_x TExp Bool
thread_active
InKernelGen ()
maybeBarrier
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
thread_active forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"write result" forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a.
(Foldable t, Monad m) =>
t (m a) -> m ()
sequence_ forall a b. (a -> b) -> a -> b
$
forall a b c d. (a -> b -> c -> d) -> [a] -> [b] -> [c] -> [d]
zipWith3 Param LParamMem -> Param LParamMem -> VName -> InKernelGen ()
writeResult [Param LParamMem]
x_params [Param LParamMem]
y_params [VName]
arrs
InKernelGen ()
maybeBarrier
TV Int32
skip_threads forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_threads forall a. Num a => a -> a -> a
* TExp Int32
2
where
block_id :: TExp Int32
block_id = TExp Int32
ltid32 forall e. IntegralExp e => e -> e -> e
`quot` TExp Int32
block_size
in_block_id :: TExp Int32
in_block_id = TExp Int32
ltid32 forall a. Num a => a -> a -> a
- TExp Int32
block_id forall a. Num a => a -> a -> a
* TExp Int32
block_size
ltid32 :: TExp Int32
ltid32 = KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants
ltid :: TPrimExp Int64 VName
ltid = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
ltid32
gtid :: TPrimExp Int64 VName
gtid = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 forall a b. (a -> b) -> a -> b
$ KernelConstants -> TExp Int32
kernelGlobalThreadId KernelConstants
constants
array_scan :: Bool
array_scan = Bool -> Bool
not forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [TypeBase Shape NoUniqueness]
lambdaReturnType Lambda GPUMem
scan_lam
readInitial :: Param LParamMem -> VName -> InKernelGen ()
readInitial Param LParamMem
p VName
arr
| forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
p =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix TPrimExp Int64 VName
ltid]
| Bool
otherwise =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix TPrimExp Int64 VName
gtid]
readParam :: TPrimExp Int64 VName -> Param LParamMem -> VName -> InKernelGen ()
readParam TPrimExp Int64 VName
behind Param LParamMem
p VName
arr
| forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
p =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
ltid forall a. Num a => a -> a -> a
- TPrimExp Int64 VName
behind]
| Bool
otherwise =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
gtid forall a. Num a => a -> a -> a
- TPrimExp Int64 VName
behind forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
arrs_full_size]
writeResult :: Param LParamMem -> Param LParamMem -> VName -> InKernelGen ()
writeResult Param LParamMem
x Param LParamMem
y VName
arr
| forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
x = do
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix TPrimExp Int64 VName
ltid] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
x) []
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
y) [] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
x) []
| Bool
otherwise =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
y) [] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
x) []
groupScan ::
Maybe (Imp.TExp Int32 -> Imp.TExp Int32 -> Imp.TExp Bool) ->
Imp.TExp Int64 ->
Imp.TExp Int64 ->
Lambda GPUMem ->
[VName] ->
InKernelGen ()
groupScan :: Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> Lambda GPUMem
-> [VName]
-> InKernelGen ()
groupScan Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag TPrimExp Int64 VName
arrs_full_size TPrimExp Int64 VName
w Lambda GPUMem
lam [VName]
arrs = do
KernelConstants
constants <- KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
Lambda GPUMem
renamed_lam <- forall {k} (rep :: k) (m :: * -> *).
(Renameable rep, MonadFreshNames m) =>
Lambda rep -> m (Lambda rep)
renameLambda Lambda GPUMem
lam
let ltid32 :: TExp Int32
ltid32 = KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants
ltid :: TPrimExp Int64 VName
ltid = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
ltid32
([Param LParamMem]
x_params, [Param LParamMem]
y_params) = forall a. Int -> [a] -> ([a], [a])
splitAt (forall (t :: * -> *) a. Foldable t => t a -> Int
length [VName]
arrs) forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam
forall {k} (rep :: k) inner r op.
Mem rep inner =>
[LParam rep] -> ImpM rep r op ()
dLParams (forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam forall a. [a] -> [a] -> [a]
++ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
renamed_lam)
TExp Bool
ltid_in_bounds <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"ltid_in_bounds" forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
ltid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TPrimExp Int64 VName
w
Fence
fence <- [VName] -> InKernelGen Fence
fenceForArrays [VName]
arrs
let block_size :: TExp Int32
block_size = TExp Int32
32
simd_width :: TExp Int32
simd_width = KernelConstants -> TExp Int32
kernelWaveSize KernelConstants
constants
block_id :: TExp Int32
block_id = TExp Int32
ltid32 forall e. IntegralExp e => e -> e -> e
`quot` TExp Int32
block_size
in_block_id :: TExp Int32
in_block_id = TExp Int32
ltid32 forall a. Num a => a -> a -> a
- TExp Int32
block_id forall a. Num a => a -> a -> a
* TExp Int32
block_size
doInBlockScan :: Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TExp Bool -> Lambda GPUMem -> InKernelGen ()
doInBlockScan Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag' TExp Bool
active =
KernelConstants
-> Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TPrimExp Int64 VName
-> TExp Int32
-> TExp Int32
-> TExp Bool
-> [VName]
-> InKernelGen ()
-> Lambda GPUMem
-> InKernelGen ()
inBlockScan
KernelConstants
constants
Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag'
TPrimExp Int64 VName
arrs_full_size
TExp Int32
simd_width
TExp Int32
block_size
TExp Bool
active
[VName]
arrs
InKernelGen ()
barrier
array_scan :: Bool
array_scan = Bool -> Bool
not forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [TypeBase Shape NoUniqueness]
lambdaReturnType Lambda GPUMem
lam
barrier :: InKernelGen ()
barrier
| Bool
array_scan =
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.Barrier Fence
Imp.FenceGlobal
| Bool
otherwise =
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.Barrier Fence
fence
group_offset :: TPrimExp Int64 VName
group_offset = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 (KernelConstants -> TExp Int32
kernelGroupId KernelConstants
constants) forall a. Num a => a -> a -> a
* KernelConstants -> TPrimExp Int64 VName
kernelGroupSize KernelConstants
constants
writeBlockResult :: Param LParamMem -> VName -> InKernelGen ()
writeBlockResult Param LParamMem
p VName
arr
| forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
p =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_id] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
p) []
| Bool
otherwise =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_id] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
p) []
readPrevBlockResult :: Param LParamMem -> VName -> InKernelGen ()
readPrevBlockResult Param LParamMem
p VName
arr
| forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
p =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_id forall a. Num a => a -> a -> a
- TPrimExp Int64 VName
1]
| Bool
otherwise =
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
p) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_id forall a. Num a => a -> a -> a
- TPrimExp Int64 VName
1]
Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TExp Bool -> Lambda GPUMem -> InKernelGen ()
doInBlockScan Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag TExp Bool
ltid_in_bounds Lambda GPUMem
lam
InKernelGen ()
barrier
let is_first_block :: TExp Bool
is_first_block = TExp Int32
block_id forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
0
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
array_scan forall a b. (a -> b) -> a -> b
$ do
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"save correct values for first block" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
is_first_block forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [VName]
arrs) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, VName
arr) ->
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
x) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
arrs_full_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
ltid] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
x) []
InKernelGen ()
barrier
let last_in_block :: TExp Bool
last_in_block = TExp Int32
in_block_id forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
block_size forall a. Num a => a -> a -> a
- TExp Int32
1
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"last thread of block 'i' writes its result to offset 'i'" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp Bool
last_in_block forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
ltid_in_bounds) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
writeBlockResult [Param LParamMem]
x_params [VName]
arrs
InKernelGen ()
barrier
let first_block_seg_flag :: Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
first_block_seg_flag = do
TExp Int32 -> TExp Int32 -> TExp Bool
flag_true <- Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag
forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ \TExp Int32
from TExp Int32
to ->
TExp Int32 -> TExp Int32 -> TExp Bool
flag_true (TExp Int32
from forall a. Num a => a -> a -> a
* TExp Int32
block_size forall a. Num a => a -> a -> a
+ TExp Int32
block_size forall a. Num a => a -> a -> a
- TExp Int32
1) (TExp Int32
to forall a. Num a => a -> a -> a
* TExp Int32
block_size forall a. Num a => a -> a -> a
+ TExp Int32
block_size forall a. Num a => a -> a -> a
- TExp Int32
1)
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
comment
Text
"scan the first block, after which offset 'i' contains carry-in for block 'i+1'"
forall a b. (a -> b) -> a -> b
$ Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
-> TExp Bool -> Lambda GPUMem -> InKernelGen ()
doInBlockScan Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
first_block_seg_flag (TExp Bool
is_first_block forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
ltid_in_bounds) Lambda GPUMem
renamed_lam
InKernelGen ()
barrier
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
array_scan forall a b. (a -> b) -> a -> b
$ do
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"move correct values for first block back a block" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
is_first_block forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [VName]
arrs) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, VName
arr) ->
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
x) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM
VName
arr
[forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
arrs_full_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
ltid]
(VName -> SubExp
Var VName
arr)
[forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
arrs_full_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
block_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
ltid]
InKernelGen ()
barrier
TExp Bool
no_carry_in <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"no_carry_in" forall a b. (a -> b) -> a -> b
$ TExp Bool
is_first_block forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.||. forall v. TPrimExp Bool v -> TPrimExp Bool v
bNot TExp Bool
ltid_in_bounds
let read_carry_in :: InKernelGen ()
read_carry_in = forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
no_carry_in forall a b. (a -> b) -> a -> b
$ do
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [Param LParamMem]
y_params) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, Param LParamMem
y) ->
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
y) [] (VName -> SubExp
Var (forall dec. Param dec -> VName
paramName Param LParamMem
x)) []
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
readPrevBlockResult [Param LParamMem]
x_params [VName]
arrs
op_to_x :: InKernelGen ()
op_to_x
| Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
Nothing <- Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag =
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
no_carry_in forall a b. (a -> b) -> a -> b
$ forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
x_params forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
lam
| Just TExp Int32 -> TExp Int32 -> TExp Bool
flag_true <- Maybe (TExp Int32 -> TExp Int32 -> TExp Bool)
seg_flag = do
TExp Bool
inactive <-
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"inactive" forall a b. (a -> b) -> a -> b
$ TExp Int32 -> TExp Int32 -> TExp Bool
flag_true (TExp Int32
block_id forall a. Num a => a -> a -> a
* TExp Int32
block_size forall a. Num a => a -> a -> a
- TExp Int32
1) TExp Int32
ltid32
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
no_carry_in forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
inactive forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [Param LParamMem]
y_params) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, Param LParamMem
y) ->
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
x) [] (VName -> SubExp
Var (forall dec. Param dec -> VName
paramName Param LParamMem
y)) []
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
array_scan InKernelGen ()
barrier
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
no_carry_in forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
inactive forall a b. (a -> b) -> a -> b
$ forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
x_params forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
lam
write_final_result :: InKernelGen ()
write_final_result =
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
x_params [VName]
arrs) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
p, VName
arr) ->
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
p) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix TPrimExp Int64 VName
ltid] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
p) []
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"carry-in for every block except the first" forall a b. (a -> b) -> a -> b
$ do
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"read operands" InKernelGen ()
read_carry_in
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"perform operation" InKernelGen ()
op_to_x
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"write final result" forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sUnless TExp Bool
no_carry_in InKernelGen ()
write_final_result
InKernelGen ()
barrier
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"restore correct values for first block" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp Bool
is_first_block forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
ltid_in_bounds) forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b c. [a] -> [b] -> [c] -> [(a, b, c)]
zip3 [Param LParamMem]
x_params [Param LParamMem]
y_params [VName]
arrs) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
x, Param LParamMem
y, VName
arr) ->
if forall shape u. TypeBase shape u -> Bool
primType (forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
y)
then forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM VName
arr [forall d. d -> DimIndex d
DimFix TPrimExp Int64 VName
ltid] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
y) []
else forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. Param dec -> VName
paramName Param LParamMem
x) [] (VName -> SubExp
Var VName
arr) [forall d. d -> DimIndex d
DimFix forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
arrs_full_size forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
group_offset forall a. Num a => a -> a -> a
+ TPrimExp Int64 VName
ltid]
InKernelGen ()
barrier
groupReduce ::
Imp.TExp Int32 ->
Lambda GPUMem ->
[VName] ->
InKernelGen ()
groupReduce :: TExp Int32 -> Lambda GPUMem -> [VName] -> InKernelGen ()
groupReduce TExp Int32
w Lambda GPUMem
lam [VName]
arrs = do
TV Int32
offset <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"offset" PrimType
int32
TV Int32
-> TExp Int32 -> Lambda GPUMem -> [VName] -> InKernelGen ()
groupReduceWithOffset TV Int32
offset TExp Int32
w Lambda GPUMem
lam [VName]
arrs
groupReduceWithOffset ::
TV Int32 ->
Imp.TExp Int32 ->
Lambda GPUMem ->
[VName] ->
InKernelGen ()
groupReduceWithOffset :: TV Int32
-> TExp Int32 -> Lambda GPUMem -> [VName] -> InKernelGen ()
groupReduceWithOffset TV Int32
offset TExp Int32
w Lambda GPUMem
lam [VName]
arrs = do
KernelConstants
constants <- KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
let local_tid :: TExp Int32
local_tid = KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants
global_tid :: TExp Int32
global_tid = KernelConstants -> TExp Int32
kernelGlobalThreadId KernelConstants
constants
barrier :: InKernelGen ()
barrier
| forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all forall shape u. TypeBase shape u -> Bool
primType forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [TypeBase Shape NoUniqueness]
lambdaReturnType Lambda GPUMem
lam = forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.Barrier Fence
Imp.FenceLocal
| Bool
otherwise = forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.Barrier Fence
Imp.FenceGlobal
readReduceArgument :: Param LParamMem -> VName -> InKernelGen ()
readReduceArgument Param LParamMem
param VName
arr
| Prim PrimType
_ <- forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
param = do
let i :: TExp Int32
i = TExp Int32
local_tid forall a. Num a => a -> a -> a
+ forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix (forall dec. Param dec -> VName
paramName Param LParamMem
param) [] (VName -> SubExp
Var VName
arr) [forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
i]
| Bool
otherwise = do
let i :: TExp Int32
i = TExp Int32
global_tid forall a. Num a => a -> a -> a
+ forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix (forall dec. Param dec -> VName
paramName Param LParamMem
param) [] (VName -> SubExp
Var VName
arr) [forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
i]
writeReduceOpResult :: Param LParamMem -> VName -> InKernelGen ()
writeReduceOpResult Param LParamMem
param VName
arr
| Prim PrimType
_ <- forall dec. Typed dec => Param dec -> TypeBase Shape NoUniqueness
paramType Param LParamMem
param =
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
arr [forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
local_tid] (VName -> SubExp
Var forall a b. (a -> b) -> a -> b
$ forall dec. Param dec -> VName
paramName Param LParamMem
param) []
| Bool
otherwise =
forall (f :: * -> *) a. Applicative f => a -> f a
pure ()
let ([Param LParamMem]
reduce_acc_params, [Param LParamMem]
reduce_arr_params) = forall a. Int -> [a] -> ([a], [a])
splitAt (forall (t :: * -> *) a. Foldable t => t a -> Int
length [VName]
arrs) forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam
TV Int32
skip_waves <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TV t)
dPrimV [Char]
"skip_waves" (TExp Int32
1 :: Imp.TExp Int32)
forall {k} (rep :: k) inner r op.
Mem rep inner =>
[LParam rep] -> ImpM rep r op ()
dLParams forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
lam
TV Int32
offset forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- (TExp Int32
0 :: Imp.TExp Int32)
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
comment Text
"participating threads read initial accumulator" forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TExp Int32
local_tid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp Int32
w) forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
readReduceArgument [Param LParamMem]
reduce_acc_params [VName]
arrs
let do_reduce :: InKernelGen ()
do_reduce = do
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
comment Text
"read array element" forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
readReduceArgument [Param LParamMem]
reduce_arr_params [VName]
arrs
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
comment Text
"apply reduction operation" forall a b. (a -> b) -> a -> b
$
forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
reduce_acc_params forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
lam
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
comment Text
"write result of operation" forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Param LParamMem -> VName -> InKernelGen ()
writeReduceOpResult [Param LParamMem]
reduce_acc_params [VName]
arrs
in_wave_reduce :: InKernelGen ()
in_wave_reduce = forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile InKernelGen ()
do_reduce
wave_size :: TExp Int32
wave_size = KernelConstants -> TExp Int32
kernelWaveSize KernelConstants
constants
group_size :: TPrimExp Int64 VName
group_size = KernelConstants -> TPrimExp Int64 VName
kernelGroupSize KernelConstants
constants
wave_id :: TExp Int32
wave_id = TExp Int32
local_tid forall e. IntegralExp e => e -> e -> e
`quot` TExp Int32
wave_size
in_wave_id :: TExp Int32
in_wave_id = TExp Int32
local_tid forall a. Num a => a -> a -> a
- TExp Int32
wave_id forall a. Num a => a -> a -> a
* TExp Int32
wave_size
num_waves :: TExp Int32
num_waves = (forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 TPrimExp Int64 VName
group_size forall a. Num a => a -> a -> a
+ TExp Int32
wave_size forall a. Num a => a -> a -> a
- TExp Int32
1) forall e. IntegralExp e => e -> e -> e
`quot` TExp Int32
wave_size
arg_in_bounds :: TExp Bool
arg_in_bounds = TExp Int32
local_tid forall a. Num a => a -> a -> a
+ forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp Int32
w
doing_in_wave_reductions :: TExp Bool
doing_in_wave_reductions =
forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp Int32
wave_size
apply_in_in_wave_iteration :: TExp Bool
apply_in_in_wave_iteration =
(TExp Int32
in_wave_id forall {k} (t :: k) v. TPrimExp t v -> TPrimExp t v -> TPrimExp t v
.&. (TExp Int32
2 forall a. Num a => a -> a -> a
* forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset forall a. Num a => a -> a -> a
- TExp Int32
1)) forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
0
in_wave_reductions :: InKernelGen ()
in_wave_reductions = do
TV Int32
offset forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- (TExp Int32
1 :: Imp.TExp Int32)
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhile TExp Bool
doing_in_wave_reductions forall a b. (a -> b) -> a -> b
$ do
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen
(TExp Bool
arg_in_bounds forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
apply_in_in_wave_iteration)
InKernelGen ()
in_wave_reduce
TV Int32
offset forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
offset forall a. Num a => a -> a -> a
* TExp Int32
2
doing_cross_wave_reductions :: TExp Bool
doing_cross_wave_reductions =
forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_waves forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TExp Int32
num_waves
is_first_thread_in_wave :: TExp Bool
is_first_thread_in_wave =
TExp Int32
in_wave_id forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
0
wave_not_skipped :: TExp Bool
wave_not_skipped =
(TExp Int32
wave_id forall {k} (t :: k) v. TPrimExp t v -> TPrimExp t v -> TPrimExp t v
.&. (TExp Int32
2 forall a. Num a => a -> a -> a
* forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_waves forall a. Num a => a -> a -> a
- TExp Int32
1)) forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. TExp Int32
0
apply_in_cross_wave_iteration :: TExp Bool
apply_in_cross_wave_iteration =
TExp Bool
arg_in_bounds forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
is_first_thread_in_wave forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
.&&. TExp Bool
wave_not_skipped
cross_wave_reductions :: InKernelGen ()
cross_wave_reductions =
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhile TExp Bool
doing_cross_wave_reductions forall a b. (a -> b) -> a -> b
$ do
InKernelGen ()
barrier
TV Int32
offset forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_waves forall a. Num a => a -> a -> a
* TExp Int32
wave_size
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen
TExp Bool
apply_in_cross_wave_iteration
InKernelGen ()
do_reduce
TV Int32
skip_waves forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
skip_waves forall a. Num a => a -> a -> a
* TExp Int32
2
InKernelGen ()
in_wave_reductions
InKernelGen ()
cross_wave_reductions
compileThreadOp :: OpCompiler GPUMem KernelEnv Imp.KernelOp
compileThreadOp :: OpCompiler GPUMem KernelEnv KernelOp
compileThreadOp Pat (LetDec GPUMem)
pat (Alloc SubExp
size Space
space) =
Pat LParamMem -> SubExp -> Space -> InKernelGen ()
kernelAlloc Pat (LetDec GPUMem)
pat SubExp
size Space
space
compileThreadOp Pat (LetDec GPUMem)
pat Op GPUMem
_ =
forall a. [Char] -> a
compilerBugS forall a b. (a -> b) -> a -> b
$ [Char]
"compileThreadOp: cannot compile rhs of binding " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString Pat (LetDec GPUMem)
pat
data Locking = Locking
{
Locking -> VName
lockingArray :: VName,
Locking -> TExp Int32
lockingIsUnlocked :: Imp.TExp Int32,
Locking -> TExp Int32
lockingToLock :: Imp.TExp Int32,
Locking -> TExp Int32
lockingToUnlock :: Imp.TExp Int32,
Locking -> [TPrimExp Int64 VName] -> [TPrimExp Int64 VName]
lockingMapping :: [Imp.TExp Int64] -> [Imp.TExp Int64]
}
type DoAtomicUpdate rep r =
Space -> [VName] -> [Imp.TExp Int64] -> ImpM rep r Imp.KernelOp ()
data AtomicUpdate rep r
=
AtomicPrim (DoAtomicUpdate rep r)
|
AtomicCAS (DoAtomicUpdate rep r)
|
AtomicLocking (Locking -> DoAtomicUpdate rep r)
type AtomicBinOp =
BinOp ->
Maybe (VName -> VName -> Count Imp.Elements (Imp.TExp Int64) -> Imp.Exp -> Imp.AtomicOp)
atomicUpdateLocking ::
AtomicBinOp ->
Lambda GPUMem ->
AtomicUpdate GPUMem KernelEnv
atomicUpdateLocking :: AtomicBinOp -> Lambda GPUMem -> AtomicUpdate GPUMem KernelEnv
atomicUpdateLocking AtomicBinOp
atomicBinOp Lambda GPUMem
lam
| Just [(BinOp, PrimType, VName, VName)]
ops_and_ts <- forall {k} (rep :: k).
ASTRep rep =>
Lambda rep -> Maybe [(BinOp, PrimType, VName, VName)]
lamIsBinOp Lambda GPUMem
lam,
forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all (\(BinOp
_, PrimType
t, VName
_, VName
_) -> PrimType -> Int
primBitSize PrimType
t forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [Int
32, Int
64]) [(BinOp, PrimType, VName, VName)]
ops_and_ts =
[(BinOp, PrimType, VName, VName)]
-> DoAtomicUpdate GPUMem KernelEnv -> AtomicUpdate GPUMem KernelEnv
primOrCas [(BinOp, PrimType, VName, VName)]
ops_and_ts forall a b. (a -> b) -> a -> b
$ \Space
space [VName]
arrs [TPrimExp Int64 VName]
bucket ->
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [VName]
arrs [(BinOp, PrimType, VName, VName)]
ops_and_ts) forall a b. (a -> b) -> a -> b
$ \(VName
a, (BinOp
op, PrimType
t, VName
x, VName
y)) -> do
TV Any
old <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"old" PrimType
t
(VName
arr', Space
_a_space, Count Elements (TPrimExp Int64 VName)
bucket_offset) <- forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray VName
a [TPrimExp Int64 VName]
bucket
case Space
-> VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> BinOp
-> Maybe (Exp -> KernelOp)
opHasAtomicSupport Space
space (forall {k} (t :: k). TV t -> VName
tvVar TV Any
old) VName
arr' Count Elements (TPrimExp Int64 VName)
bucket_offset BinOp
op of
Just Exp -> KernelOp
f -> forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Exp -> KernelOp
f forall a b. (a -> b) -> a -> b
$ VName -> PrimType -> Exp
Imp.var VName
y PrimType
t
Maybe (Exp -> KernelOp)
Nothing ->
Space
-> PrimType
-> VName
-> VName
-> [TPrimExp Int64 VName]
-> VName
-> InKernelGen ()
-> InKernelGen ()
atomicUpdateCAS Space
space PrimType
t VName
a (forall {k} (t :: k). TV t -> VName
tvVar TV Any
old) [TPrimExp Int64 VName]
bucket VName
x forall a b. (a -> b) -> a -> b
$
VName
x forall {k} (rep :: k) r op. VName -> Exp -> ImpM rep r op ()
<~~ forall v. BinOp -> PrimExp v -> PrimExp v -> PrimExp v
Imp.BinOpExp BinOp
op (VName -> PrimType -> Exp
Imp.var VName
x PrimType
t) (VName -> PrimType -> Exp
Imp.var VName
y PrimType
t)
where
opHasAtomicSupport :: Space
-> VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> BinOp
-> Maybe (Exp -> KernelOp)
opHasAtomicSupport Space
space VName
old VName
arr' Count Elements (TPrimExp Int64 VName)
bucket' BinOp
bop = do
let atomic :: (VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> AtomicOp)
-> Exp -> KernelOp
atomic VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> AtomicOp
f = Space -> AtomicOp -> KernelOp
Imp.Atomic Space
space forall b c a. (b -> c) -> (a -> b) -> a -> c
. VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> AtomicOp
f VName
old VName
arr' Count Elements (TPrimExp Int64 VName)
bucket'
(VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> AtomicOp)
-> Exp -> KernelOp
atomic forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> AtomicBinOp
atomicBinOp BinOp
bop
primOrCas :: [(BinOp, PrimType, VName, VName)]
-> DoAtomicUpdate GPUMem KernelEnv -> AtomicUpdate GPUMem KernelEnv
primOrCas [(BinOp, PrimType, VName, VName)]
ops
| forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all (BinOp, PrimType, VName, VName) -> Bool
isPrim [(BinOp, PrimType, VName, VName)]
ops = forall {k} (rep :: k) r. DoAtomicUpdate rep r -> AtomicUpdate rep r
AtomicPrim
| Bool
otherwise = forall {k} (rep :: k) r. DoAtomicUpdate rep r -> AtomicUpdate rep r
AtomicCAS
isPrim :: (BinOp, PrimType, VName, VName) -> Bool
isPrim (BinOp
op, PrimType
_, VName
_, VName
_) = forall a. Maybe a -> Bool
isJust forall a b. (a -> b) -> a -> b
$ AtomicBinOp
atomicBinOp BinOp
op
atomicUpdateLocking AtomicBinOp
_ Lambda GPUMem
op
| [Prim PrimType
t] <- forall {k} (rep :: k). Lambda rep -> [TypeBase Shape NoUniqueness]
lambdaReturnType Lambda GPUMem
op,
[LParam GPUMem
xp, LParam GPUMem
_] <- forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
op,
PrimType -> Int
primBitSize PrimType
t forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [Int
32, Int
64] = forall {k} (rep :: k) r. DoAtomicUpdate rep r -> AtomicUpdate rep r
AtomicCAS forall a b. (a -> b) -> a -> b
$ \Space
space [VName
arr] [TPrimExp Int64 VName]
bucket -> do
TV Any
old <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"old" PrimType
t
Space
-> PrimType
-> VName
-> VName
-> [TPrimExp Int64 VName]
-> VName
-> InKernelGen ()
-> InKernelGen ()
atomicUpdateCAS Space
space PrimType
t VName
arr (forall {k} (t :: k). TV t -> VName
tvVar TV Any
old) [TPrimExp Int64 VName]
bucket (forall dec. Param dec -> VName
paramName LParam GPUMem
xp) forall a b. (a -> b) -> a -> b
$
forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [LParam GPUMem
xp] forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
op
atomicUpdateLocking AtomicBinOp
_ Lambda GPUMem
op = forall {k} (rep :: k) r.
(Locking -> DoAtomicUpdate rep r) -> AtomicUpdate rep r
AtomicLocking forall a b. (a -> b) -> a -> b
$ \Locking
locking Space
space [VName]
arrs [TPrimExp Int64 VName]
bucket -> do
TV Int32
old <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"old" PrimType
int32
TV Bool
continue <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> PrimType -> TExp t -> ImpM rep r op (TV t)
dPrimVol [Char]
"continue" PrimType
Bool forall v. TPrimExp Bool v
true
(VName
locks', Space
_locks_space, Count Elements (TPrimExp Int64 VName)
locks_offset) <-
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray (Locking -> VName
lockingArray Locking
locking) forall a b. (a -> b) -> a -> b
$ Locking -> [TPrimExp Int64 VName] -> [TPrimExp Int64 VName]
lockingMapping Locking
locking [TPrimExp Int64 VName]
bucket
let try_acquire_lock :: InKernelGen ()
try_acquire_lock =
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$
Space -> AtomicOp -> KernelOp
Imp.Atomic Space
space forall a b. (a -> b) -> a -> b
$
PrimType
-> VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> Exp
-> AtomicOp
Imp.AtomicCmpXchg
PrimType
int32
(forall {k} (t :: k). TV t -> VName
tvVar TV Int32
old)
VName
locks'
Count Elements (TPrimExp Int64 VName)
locks_offset
(forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ Locking -> TExp Int32
lockingIsUnlocked Locking
locking)
(forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ Locking -> TExp Int32
lockingToLock Locking
locking)
lock_acquired :: TExp Bool
lock_acquired = forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
old forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.==. Locking -> TExp Int32
lockingIsUnlocked Locking
locking
release_lock :: InKernelGen ()
release_lock =
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$
Space -> AtomicOp -> KernelOp
Imp.Atomic Space
space forall a b. (a -> b) -> a -> b
$
PrimType
-> VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> Exp
-> AtomicOp
Imp.AtomicCmpXchg
PrimType
int32
(forall {k} (t :: k). TV t -> VName
tvVar TV Int32
old)
VName
locks'
Count Elements (TPrimExp Int64 VName)
locks_offset
(forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ Locking -> TExp Int32
lockingToLock Locking
locking)
(forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ Locking -> TExp Int32
lockingToUnlock Locking
locking)
break_loop :: InKernelGen ()
break_loop = TV Bool
continue forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall v. TPrimExp Bool v
false
let ([Param LParamMem]
acc_params, [Param LParamMem]
_arr_params) = forall a. Int -> [a] -> ([a], [a])
splitAt (forall (t :: * -> *) a. Foldable t => t a -> Int
length [VName]
arrs) forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k). Lambda rep -> [LParam rep]
lambdaParams Lambda GPUMem
op
bind_acc_params :: InKernelGen ()
bind_acc_params =
forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"bind lhs" forall a b. (a -> b) -> a -> b
$
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a b. [a] -> [b] -> [(a, b)]
zip [Param LParamMem]
acc_params [VName]
arrs) forall a b. (a -> b) -> a -> b
$ \(Param LParamMem
acc_p, VName
arr) ->
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix (forall dec. Param dec -> VName
paramName Param LParamMem
acc_p) [] (VName -> SubExp
Var VName
arr) [TPrimExp Int64 VName]
bucket
let op_body :: InKernelGen ()
op_body =
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"execute operation" forall a b. (a -> b) -> a -> b
$
forall {k} dec (rep :: k) r op.
[Param dec] -> Body rep -> ImpM rep r op ()
compileBody' [Param LParamMem]
acc_params forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k). Lambda rep -> Body rep
lambdaBody Lambda GPUMem
op
do_hist :: InKernelGen ()
do_hist =
forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
Text -> ImpM rep r op () -> ImpM rep r op ()
sComment Text
"update global result" forall a b. (a -> b) -> a -> b
$
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ (forall {k} {rep :: k} {r} {op}.
[TPrimExp Int64 VName] -> VName -> SubExp -> ImpM rep r op ()
writeArray [TPrimExp Int64 VName]
bucket) [VName]
arrs forall a b. (a -> b) -> a -> b
$
forall a b. (a -> b) -> [a] -> [b]
map (VName -> SubExp
Var forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall dec. Param dec -> VName
paramName) [Param LParamMem]
acc_params
fence :: InKernelGen ()
fence = forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.MemFence forall a b. (a -> b) -> a -> b
$ Space -> Fence
fenceForSpace Space
space
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhile (forall {k} (t :: k). TV t -> TExp t
tvExp TV Bool
continue) forall a b. (a -> b) -> a -> b
$ do
InKernelGen ()
try_acquire_lock
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
lock_acquired forall a b. (a -> b) -> a -> b
$ do
forall {k} (rep :: k) inner r op.
Mem rep inner =>
[LParam rep] -> ImpM rep r op ()
dLParams [Param LParamMem]
acc_params
InKernelGen ()
bind_acc_params
InKernelGen ()
op_body
InKernelGen ()
do_hist
InKernelGen ()
fence
InKernelGen ()
release_lock
InKernelGen ()
break_loop
InKernelGen ()
fence
where
writeArray :: [TPrimExp Int64 VName] -> VName -> SubExp -> ImpM rep r op ()
writeArray [TPrimExp Int64 VName]
bucket VName
arr SubExp
val = forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
arr [TPrimExp Int64 VName]
bucket SubExp
val []
atomicUpdateCAS ::
Space ->
PrimType ->
VName ->
VName ->
[Imp.TExp Int64] ->
VName ->
InKernelGen () ->
InKernelGen ()
atomicUpdateCAS :: Space
-> PrimType
-> VName
-> VName
-> [TPrimExp Int64 VName]
-> VName
-> InKernelGen ()
-> InKernelGen ()
atomicUpdateCAS Space
space PrimType
t VName
arr VName
old [TPrimExp Int64 VName]
bucket VName
x InKernelGen ()
do_op = do
VName
assumed <- forall {k} (t :: k). TV t -> VName
tvVar forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"assumed" PrimType
t
TV Bool
run_loop <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TV t)
dPrimV [Char]
"run_loop" forall v. TPrimExp Bool v
true
forall {k} (rep :: k) r op a. ImpM rep r op a -> ImpM rep r op a
everythingVolatile forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
old [] (VName -> SubExp
Var VName
arr) [TPrimExp Int64 VName]
bucket
(VName
arr', Space
_a_space, Count Elements (TPrimExp Int64 VName)
bucket_offset) <- forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray VName
arr [TPrimExp Int64 VName]
bucket
let (Exp -> Exp
toBits, Exp -> Exp
fromBits) =
case PrimType
t of
FloatType FloatType
Float16 ->
( \Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"to_bits16" [Exp
v] PrimType
int16,
\Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"from_bits16" [Exp
v] PrimType
t
)
FloatType FloatType
Float32 ->
( \Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"to_bits32" [Exp
v] PrimType
int32,
\Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"from_bits32" [Exp
v] PrimType
t
)
FloatType FloatType
Float64 ->
( \Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"to_bits64" [Exp
v] PrimType
int64,
\Exp
v -> forall v. [Char] -> [PrimExp v] -> PrimType -> PrimExp v
Imp.FunExp [Char]
"from_bits64" [Exp
v] PrimType
t
)
PrimType
_ -> (forall a. a -> a
id, forall a. a -> a
id)
int :: PrimType
int
| PrimType -> Int
primBitSize PrimType
t forall a. Eq a => a -> a -> Bool
== Int
16 = PrimType
int16
| PrimType -> Int
primBitSize PrimType
t forall a. Eq a => a -> a -> Bool
== Int
32 = PrimType
int32
| Bool
otherwise = PrimType
int64
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhile (forall {k} (t :: k). TV t -> TExp t
tvExp TV Bool
run_loop) forall a b. (a -> b) -> a -> b
$ do
VName
assumed forall {k} (rep :: k) r op. VName -> Exp -> ImpM rep r op ()
<~~ VName -> PrimType -> Exp
Imp.var VName
old PrimType
t
VName
x forall {k} (rep :: k) r op. VName -> Exp -> ImpM rep r op ()
<~~ VName -> PrimType -> Exp
Imp.var VName
assumed PrimType
t
InKernelGen ()
do_op
VName
old_bits_v <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"old_bits"
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
old_bits_v PrimType
int
let old_bits :: Exp
old_bits = VName -> PrimType -> Exp
Imp.var VName
old_bits_v PrimType
int
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall b c a. (b -> c) -> (a -> b) -> a -> c
. Space -> AtomicOp -> KernelOp
Imp.Atomic Space
space forall a b. (a -> b) -> a -> b
$
PrimType
-> VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> Exp
-> Exp
-> AtomicOp
Imp.AtomicCmpXchg
PrimType
int
VName
old_bits_v
VName
arr'
Count Elements (TPrimExp Int64 VName)
bucket_offset
(Exp -> Exp
toBits (VName -> PrimType -> Exp
Imp.var VName
assumed PrimType
t))
(Exp -> Exp
toBits (VName -> PrimType -> Exp
Imp.var VName
x PrimType
t))
VName
old forall {k} (rep :: k) r op. VName -> Exp -> ImpM rep r op ()
<~~ Exp -> Exp
fromBits Exp
old_bits
let won :: Exp
won = forall v. CmpOp -> PrimExp v -> PrimExp v -> PrimExp v
CmpOpExp (PrimType -> CmpOp
CmpEq PrimType
int) (Exp -> Exp
toBits (VName -> PrimType -> Exp
Imp.var VName
assumed PrimType
t)) Exp
old_bits
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (forall v. PrimExp v -> TPrimExp Bool v
isBool Exp
won) (TV Bool
run_loop forall {k1} {k2} (t :: k1) (rep :: k2) r op.
TV t -> TExp t -> ImpM rep r op ()
<-- forall v. TPrimExp Bool v
false)
computeKernelUses ::
FreeIn a =>
a ->
[VName] ->
CallKernelGen [Imp.KernelUse]
computeKernelUses :: forall a. FreeIn a => a -> [VName] -> CallKernelGen [KernelUse]
computeKernelUses a
kernel_body [VName]
bound_in_kernel = do
let actually_free :: Names
actually_free = forall a. FreeIn a => a -> Names
freeIn a
kernel_body Names -> Names -> Names
`namesSubtract` [VName] -> Names
namesFromList [VName]
bound_in_kernel
forall a. Ord a => [a] -> [a]
nubOrd forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Names -> CallKernelGen [KernelUse]
readsFromSet Names
actually_free
readsFromSet :: Names -> CallKernelGen [Imp.KernelUse]
readsFromSet :: Names -> CallKernelGen [KernelUse]
readsFromSet = forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap forall a. [Maybe a] -> [a]
catMaybes forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM forall {r} {op}. VName -> ImpM GPUMem r op (Maybe KernelUse)
f forall b c a. (b -> c) -> (a -> b) -> a -> c
. Names -> [VName]
namesToList
where
f :: VName -> ImpM GPUMem r op (Maybe KernelUse)
f VName
var = do
TypeBase Shape NoUniqueness
t <- forall {k} (rep :: k) (m :: * -> *).
HasScope rep m =>
VName -> m (TypeBase Shape NoUniqueness)
lookupType VName
var
VTable GPUMem
vtable <- forall {k} (rep :: k) r op. ImpM rep r op (VTable rep)
getVTable
case TypeBase Shape NoUniqueness
t of
Array {} -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a. Maybe a
Nothing
Acc {} -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a. Maybe a
Nothing
Mem (Space [Char]
"local") -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a. Maybe a
Nothing
Mem {} -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ VName -> KernelUse
Imp.MemoryUse VName
var
Prim PrimType
bt ->
forall {k} (rep :: k) r op.
VTable GPUMem -> Exp -> ImpM rep r op (Maybe KernelConstExp)
isConstExp VTable GPUMem
vtable (VName -> PrimType -> Exp
Imp.var VName
var PrimType
bt) forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \case
Just KernelConstExp
ce -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ VName -> KernelConstExp -> KernelUse
Imp.ConstUse VName
var KernelConstExp
ce
Maybe KernelConstExp
Nothing -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ VName -> PrimType -> KernelUse
Imp.ScalarUse VName
var PrimType
bt
isConstExp ::
VTable GPUMem ->
Imp.Exp ->
ImpM rep r op (Maybe Imp.KernelConstExp)
isConstExp :: forall {k} (rep :: k) r op.
VTable GPUMem -> Exp -> ImpM rep r op (Maybe KernelConstExp)
isConstExp VTable GPUMem
vtable Exp
size = do
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let onLeaf :: VName -> PrimType -> Maybe KernelConstExp
onLeaf VName
name PrimType
_ = VName -> Maybe KernelConstExp
lookupConstExp VName
name
lookupConstExp :: VName -> Maybe KernelConstExp
lookupConstExp VName
name =
Exp GPUMem -> Maybe KernelConstExp
constExp forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< forall {k} {rep :: k}. VarEntry rep -> Maybe (Exp rep)
hasExp forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< forall k a. Ord k => k -> Map k a -> Maybe a
M.lookup VName
name VTable GPUMem
vtable
constExp :: Exp GPUMem -> Maybe KernelConstExp
constExp (Op (Inner (SizeOp (GetSize Name
key SizeClass
_)))) =
forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ forall v. v -> PrimType -> PrimExp v
LeafExp (Name -> KernelConst
Imp.SizeConst forall a b. (a -> b) -> a -> b
$ Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname Name
key) PrimType
int32
constExp (Op (Inner (SizeOp (GetSizeMax SizeClass
size_class)))) =
forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ forall v. v -> PrimType -> PrimExp v
LeafExp (SizeClass -> KernelConst
Imp.SizeMaxConst SizeClass
size_class) PrimType
int32
constExp Exp GPUMem
e = forall {k} (m :: * -> *) (rep :: k) v.
(MonadFail m, RepTypes rep) =>
(VName -> m (PrimExp v)) -> Exp rep -> m (PrimExp v)
primExpFromExp VName -> Maybe KernelConstExp
lookupConstExp Exp GPUMem
e
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) a b.
Monad m =>
(a -> PrimType -> m (PrimExp b)) -> PrimExp a -> m (PrimExp b)
replaceInPrimExpM VName -> PrimType -> Maybe KernelConstExp
onLeaf Exp
size
where
hasExp :: VarEntry rep -> Maybe (Exp rep)
hasExp (ArrayVar Maybe (Exp rep)
e ArrayEntry
_) = Maybe (Exp rep)
e
hasExp (AccVar Maybe (Exp rep)
e (VName, Shape, [TypeBase Shape NoUniqueness])
_) = Maybe (Exp rep)
e
hasExp (ScalarVar Maybe (Exp rep)
e ScalarEntry
_) = Maybe (Exp rep)
e
hasExp (MemVar Maybe (Exp rep)
e MemEntry
_) = Maybe (Exp rep)
e
kernelInitialisationSimple ::
Count NumGroups SubExp ->
Count GroupSize SubExp ->
CallKernelGen (KernelConstants, InKernelGen ())
kernelInitialisationSimple :: Count NumGroups SubExp
-> Count GroupSize SubExp
-> CallKernelGen (KernelConstants, InKernelGen ())
kernelInitialisationSimple Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size = do
VName
global_tid <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"global_tid"
VName
local_tid <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"local_tid"
VName
group_id <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"group_tid"
VName
wave_size <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"wave_size"
VName
inner_group_size <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"group_size"
let num_groups' :: TPrimExp Int64 VName
num_groups' = SubExp -> TPrimExp Int64 VName
Imp.pe64 (forall {k} (u :: k) e. Count u e -> e
unCount Count NumGroups SubExp
num_groups)
group_size' :: TPrimExp Int64 VName
group_size' = SubExp -> TPrimExp Int64 VName
Imp.pe64 (forall {k} (u :: k) e. Count u e -> e
unCount Count GroupSize SubExp
group_size)
constants :: KernelConstants
constants =
KernelConstants
{ kernelGlobalThreadId :: TExp Int32
kernelGlobalThreadId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
global_tid,
kernelLocalThreadId :: TExp Int32
kernelLocalThreadId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
local_tid,
kernelGroupId :: TExp Int32
kernelGroupId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
group_id,
kernelGlobalThreadIdVar :: VName
kernelGlobalThreadIdVar = VName
global_tid,
kernelLocalThreadIdVar :: VName
kernelLocalThreadIdVar = VName
local_tid,
kernelNumGroupsCount :: Count NumGroups SubExp
kernelNumGroupsCount = Count NumGroups SubExp
num_groups,
kernelGroupSizeCount :: Count GroupSize SubExp
kernelGroupSizeCount = Count GroupSize SubExp
group_size,
kernelGroupIdVar :: VName
kernelGroupIdVar = VName
group_id,
kernelNumGroups :: TPrimExp Int64 VName
kernelNumGroups = TPrimExp Int64 VName
num_groups',
kernelGroupSize :: TPrimExp Int64 VName
kernelGroupSize = TPrimExp Int64 VName
group_size',
kernelNumThreads :: TExp Int32
kernelNumThreads = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 (TPrimExp Int64 VName
group_size' forall a. Num a => a -> a -> a
* TPrimExp Int64 VName
num_groups'),
kernelWaveSize :: TExp Int32
kernelWaveSize = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
wave_size,
kernelLocalIdMap :: Map [SubExp] [TExp Int32]
kernelLocalIdMap = forall a. Monoid a => a
mempty,
kernelChunkItersMap :: Map [SubExp] (TExp Int32)
kernelChunkItersMap = forall a. Monoid a => a
mempty
}
let set_constants :: InKernelGen ()
set_constants = do
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
local_tid PrimType
int32
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
inner_group_size PrimType
int64
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
wave_size PrimType
int32
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
group_id PrimType
int32
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetLocalId VName
local_tid Int
0)
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetLocalSize VName
inner_group_size Int
0)
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> KernelOp
Imp.GetLockstepWidth VName
wave_size)
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetGroupId VName
group_id Int
0)
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
VName -> TExp t -> ImpM rep r op ()
dPrimV_ VName
global_tid forall a b. (a -> b) -> a -> b
$ forall a. a -> TPrimExp Int32 a
le32 VName
group_id forall a. Num a => a -> a -> a
* forall a. a -> TPrimExp Int32 a
le32 VName
inner_group_size forall a. Num a => a -> a -> a
+ forall a. a -> TPrimExp Int32 a
le32 VName
local_tid
forall (f :: * -> *) a. Applicative f => a -> f a
pure (KernelConstants
constants, InKernelGen ()
set_constants)
isActive :: [(VName, SubExp)] -> Imp.TExp Bool
isActive :: [(VName, SubExp)] -> TExp Bool
isActive [(VName, SubExp)]
limit = case [TExp Bool]
actives of
[] -> forall v. TPrimExp Bool v
true
TExp Bool
x : [TExp Bool]
xs -> forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl forall v. TPrimExp Bool v -> TPrimExp Bool v -> TPrimExp Bool v
(.&&.) TExp Bool
x [TExp Bool]
xs
where
([VName]
is, [SubExp]
ws) = forall a b. [(a, b)] -> ([a], [b])
unzip [(VName, SubExp)]
limit
actives :: [TExp Bool]
actives = forall a b c. (a -> b -> c) -> [a] -> [b] -> [c]
zipWith forall {v}. v -> TPrimExp Int64 v -> TPrimExp Bool v
active [VName]
is forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 [SubExp]
ws
active :: v -> TPrimExp Int64 v -> TPrimExp Bool v
active v
i = (forall a. a -> TPrimExp Int64 a
Imp.le64 v
i .<.)
makeAllMemoryGlobal :: CallKernelGen a -> CallKernelGen a
makeAllMemoryGlobal :: forall a. CallKernelGen a -> CallKernelGen a
makeAllMemoryGlobal =
forall {k} (rep :: k) r op a.
Space -> ImpM rep r op a -> ImpM rep r op a
localDefaultSpace ([Char] -> Space
Imp.Space [Char]
"global") forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (rep :: k) r op a.
(VTable rep -> VTable rep) -> ImpM rep r op a -> ImpM rep r op a
localVTable (forall a b k. (a -> b) -> Map k a -> Map k b
M.map forall {k} {rep :: k}. VarEntry rep -> VarEntry rep
globalMemory)
where
globalMemory :: VarEntry rep -> VarEntry rep
globalMemory (MemVar Maybe (Exp rep)
_ MemEntry
entry)
| MemEntry -> Space
entryMemSpace MemEntry
entry forall a. Eq a => a -> a -> Bool
/= [Char] -> Space
Space [Char]
"local" =
forall {k} (rep :: k). Maybe (Exp rep) -> MemEntry -> VarEntry rep
MemVar forall a. Maybe a
Nothing MemEntry
entry {entryMemSpace :: Space
entryMemSpace = [Char] -> Space
Imp.Space [Char]
"global"}
globalMemory VarEntry rep
entry =
VarEntry rep
entry
simpleKernelGroups ::
Imp.TExp Int64 ->
Imp.TExp Int64 ->
CallKernelGen (Imp.TExp Int32, Count NumGroups SubExp, Count GroupSize SubExp)
simpleKernelGroups :: TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> CallKernelGen
(TExp Int32, Count NumGroups SubExp, Count GroupSize SubExp)
simpleKernelGroups TPrimExp Int64 VName
max_num_groups TPrimExp Int64 VName
kernel_size = do
TV Int64
group_size <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"group_size" PrimType
int64
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let group_size_key :: Name
group_size_key = Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$ [Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$ forall a. Pretty a => a -> [Char]
prettyString forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> VName
tvVar TV Int64
group_size
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ VName -> Name -> SizeClass -> HostOp
Imp.GetSize (forall {k} (t :: k). TV t -> VName
tvVar TV Int64
group_size) Name
group_size_key SizeClass
Imp.SizeGroup
TPrimExp Int64 VName
virt_num_groups <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"virt_num_groups" forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
kernel_size forall e. IntegralExp e => e -> e -> e
`divUp` forall {k} (t :: k). TV t -> TExp t
tvExp TV Int64
group_size
TV Int64
num_groups <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TV t)
dPrimV [Char]
"num_groups" forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
virt_num_groups forall v. TPrimExp Int64 v -> TPrimExp Int64 v -> TPrimExp Int64 v
`sMin64` TPrimExp Int64 VName
max_num_groups
forall (f :: * -> *) a. Applicative f => a -> f a
pure (forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 TPrimExp Int64 VName
virt_num_groups, forall {k} (u :: k) e. e -> Count u e
Count forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> SubExp
tvSize TV Int64
num_groups, forall {k} (u :: k) e. e -> Count u e
Count forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> SubExp
tvSize TV Int64
group_size)
simpleKernelConstants ::
Imp.TExp Int64 ->
String ->
CallKernelGen
( (Imp.TExp Int64 -> InKernelGen ()) -> InKernelGen (),
KernelConstants
)
simpleKernelConstants :: TPrimExp Int64 VName
-> [Char]
-> CallKernelGen
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen (),
KernelConstants)
simpleKernelConstants TPrimExp Int64 VName
kernel_size [Char]
desc = do
let max_num_groups :: TPrimExp Int64 VName
max_num_groups = TPrimExp Int64 VName
1024 forall a. Num a => a -> a -> a
* TPrimExp Int64 VName
1024
VName
thread_gtid <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName forall a b. (a -> b) -> a -> b
$ [Char]
desc forall a. [a] -> [a] -> [a]
++ [Char]
"_gtid"
VName
thread_ltid <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName forall a b. (a -> b) -> a -> b
$ [Char]
desc forall a. [a] -> [a] -> [a]
++ [Char]
"_ltid"
VName
group_id <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName forall a b. (a -> b) -> a -> b
$ [Char]
desc forall a. [a] -> [a] -> [a]
++ [Char]
"_gid"
VName
inner_group_size <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"group_size"
(TExp Int32
virt_num_groups, Count NumGroups SubExp
num_groups, Count GroupSize SubExp
group_size) <-
TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> CallKernelGen
(TExp Int32, Count NumGroups SubExp, Count GroupSize SubExp)
simpleKernelGroups TPrimExp Int64 VName
max_num_groups TPrimExp Int64 VName
kernel_size
let group_size' :: TPrimExp Int64 VName
group_size' = SubExp -> TPrimExp Int64 VName
Imp.pe64 forall a b. (a -> b) -> a -> b
$ forall {k} (u :: k) e. Count u e -> e
unCount Count GroupSize SubExp
group_size
num_groups' :: TPrimExp Int64 VName
num_groups' = SubExp -> TPrimExp Int64 VName
Imp.pe64 forall a b. (a -> b) -> a -> b
$ forall {k} (u :: k) e. Count u e -> e
unCount Count NumGroups SubExp
num_groups
constants :: KernelConstants
constants =
KernelConstants
{ kernelGlobalThreadId :: TExp Int32
kernelGlobalThreadId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
thread_gtid,
kernelLocalThreadId :: TExp Int32
kernelLocalThreadId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
thread_ltid,
kernelGroupId :: TExp Int32
kernelGroupId = forall a. a -> TPrimExp Int32 a
Imp.le32 VName
group_id,
kernelGlobalThreadIdVar :: VName
kernelGlobalThreadIdVar = VName
thread_gtid,
kernelLocalThreadIdVar :: VName
kernelLocalThreadIdVar = VName
thread_ltid,
kernelGroupIdVar :: VName
kernelGroupIdVar = VName
group_id,
kernelNumGroupsCount :: Count NumGroups SubExp
kernelNumGroupsCount = Count NumGroups SubExp
num_groups,
kernelGroupSizeCount :: Count GroupSize SubExp
kernelGroupSizeCount = Count GroupSize SubExp
group_size,
kernelNumGroups :: TPrimExp Int64 VName
kernelNumGroups = TPrimExp Int64 VName
num_groups',
kernelGroupSize :: TPrimExp Int64 VName
kernelGroupSize = TPrimExp Int64 VName
group_size',
kernelNumThreads :: TExp Int32
kernelNumThreads = forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 (TPrimExp Int64 VName
group_size' forall a. Num a => a -> a -> a
* TPrimExp Int64 VName
num_groups'),
kernelWaveSize :: TExp Int32
kernelWaveSize = TExp Int32
0,
kernelLocalIdMap :: Map [SubExp] [TExp Int32]
kernelLocalIdMap = forall a. Monoid a => a
mempty,
kernelChunkItersMap :: Map [SubExp] (TExp Int32)
kernelChunkItersMap = forall a. Monoid a => a
mempty
}
wrapKernel :: (TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
wrapKernel TPrimExp Int64 VName -> InKernelGen ()
m = do
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
thread_ltid PrimType
int32
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
inner_group_size PrimType
int64
forall {k} (rep :: k) r op. VName -> PrimType -> ImpM rep r op ()
dPrim_ VName
group_id PrimType
int32
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetLocalId VName
thread_ltid Int
0)
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetLocalSize VName
inner_group_size Int
0)
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp (VName -> Int -> KernelOp
Imp.GetGroupId VName
group_id Int
0)
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
VName -> TExp t -> ImpM rep r op ()
dPrimV_ VName
thread_gtid forall a b. (a -> b) -> a -> b
$ forall a. a -> TPrimExp Int32 a
le32 VName
group_id forall a. Num a => a -> a -> a
* forall a. a -> TPrimExp Int32 a
le32 VName
inner_group_size forall a. Num a => a -> a -> a
+ forall a. a -> TPrimExp Int32 a
le32 VName
thread_ltid
SegVirt
-> TExp Int32 -> (TExp Int32 -> InKernelGen ()) -> InKernelGen ()
virtualiseGroups SegVirt
SegVirt TExp Int32
virt_num_groups forall a b. (a -> b) -> a -> b
$ \TExp Int32
virt_group_id -> do
TPrimExp Int64 VName
global_tid <-
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"global_tid" forall a b. (a -> b) -> a -> b
$
forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TExp Int32
virt_group_id forall a. Num a => a -> a -> a
* forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 (forall a. a -> TPrimExp Int32 a
le32 VName
inner_group_size)
forall a. Num a => a -> a -> a
+ forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 (KernelConstants -> TExp Int32
kernelLocalThreadId KernelConstants
constants)
TPrimExp Int64 VName -> InKernelGen ()
m TPrimExp Int64 VName
global_tid
forall (f :: * -> *) a. Applicative f => a -> f a
pure ((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
wrapKernel, KernelConstants
constants)
virtualiseGroups ::
SegVirt ->
Imp.TExp Int32 ->
(Imp.TExp Int32 -> InKernelGen ()) ->
InKernelGen ()
virtualiseGroups :: SegVirt
-> TExp Int32 -> (TExp Int32 -> InKernelGen ()) -> InKernelGen ()
virtualiseGroups SegVirt
SegVirt TExp Int32
required_groups TExp Int32 -> InKernelGen ()
m = do
KernelConstants
constants <- KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
TV Int32
phys_group_id <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"phys_group_id" PrimType
int32
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ VName -> Int -> KernelOp
Imp.GetGroupId (forall {k} (t :: k). TV t -> VName
tvVar TV Int32
phys_group_id) Int
0
TExp Int32
iterations <-
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"iterations" forall a b. (a -> b) -> a -> b
$
(TExp Int32
required_groups forall a. Num a => a -> a -> a
- forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
phys_group_id) forall e. IntegralExp e => e -> e -> e
`divUp` forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 (KernelConstants -> TPrimExp Int64 VName
kernelNumGroups KernelConstants
constants)
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char]
-> TExp t -> (TExp t -> ImpM rep r op ()) -> ImpM rep r op ()
sFor [Char]
"i" TExp Int32
iterations forall a b. (a -> b) -> a -> b
$ \TExp Int32
i -> do
TExp Int32 -> InKernelGen ()
m forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {k} (t :: k). TV t -> TExp t
tvExp
forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TV t)
dPrimV
[Char]
"virt_group_id"
(forall {k} (t :: k). TV t -> TExp t
tvExp TV Int32
phys_group_id forall a. Num a => a -> a -> a
+ TExp Int32
i forall a. Num a => a -> a -> a
* forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int32 v
sExt32 (KernelConstants -> TPrimExp Int64 VName
kernelNumGroups KernelConstants
constants))
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ Fence -> KernelOp
Imp.Barrier Fence
Imp.FenceGlobal
virtualiseGroups SegVirt
_ TExp Int32
_ TExp Int32 -> InKernelGen ()
m = do
VName
gid <- KernelConstants -> VName
kernelGroupIdVar forall b c a. (b -> c) -> (a -> b) -> a -> c
. KernelEnv -> KernelConstants
kernelConstants forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
TExp Int32 -> InKernelGen ()
m forall a b. (a -> b) -> a -> b
$ forall a. a -> TPrimExp Int32 a
Imp.le32 VName
gid
data KernelAttrs = KernelAttrs
{
KernelAttrs -> Bool
kAttrFailureTolerant :: Bool,
KernelAttrs -> Bool
kAttrCheckLocalMemory :: Bool,
KernelAttrs -> Count NumGroups SubExp
kAttrNumGroups :: Count NumGroups SubExp,
KernelAttrs -> Count GroupSize SubExp
kAttrGroupSize :: Count GroupSize SubExp
}
defKernelAttrs ::
Count NumGroups SubExp ->
Count GroupSize SubExp ->
KernelAttrs
defKernelAttrs :: Count NumGroups SubExp -> Count GroupSize SubExp -> KernelAttrs
defKernelAttrs Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size =
KernelAttrs
{ kAttrFailureTolerant :: Bool
kAttrFailureTolerant = Bool
False,
kAttrCheckLocalMemory :: Bool
kAttrCheckLocalMemory = Bool
True,
kAttrNumGroups :: Count NumGroups SubExp
kAttrNumGroups = Count NumGroups SubExp
num_groups,
kAttrGroupSize :: Count GroupSize SubExp
kAttrGroupSize = Count GroupSize SubExp
group_size
}
getSize :: String -> SizeClass -> CallKernelGen (TV Int64)
getSize :: [Char] -> SizeClass -> ImpM GPUMem HostEnv HostOp (TV Int64)
getSize [Char]
desc SizeClass
size_class = do
TV Int64
v <- forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
desc PrimType
int64
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let v_key :: Name
v_key = Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$ [Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$ forall a. Pretty a => a -> [Char]
prettyString forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> VName
tvVar TV Int64
v
forall {k} op (rep :: k) r. op -> ImpM rep r op ()
sOp forall a b. (a -> b) -> a -> b
$ VName -> Name -> SizeClass -> HostOp
Imp.GetSize (forall {k} (t :: k). TV t -> VName
tvVar TV Int64
v) Name
v_key SizeClass
size_class
forall (f :: * -> *) a. Applicative f => a -> f a
pure TV Int64
v
lvlKernelAttrs :: SegLevel -> CallKernelGen KernelAttrs
lvlKernelAttrs :: SegLevel -> CallKernelGen KernelAttrs
lvlKernelAttrs SegLevel
lvl =
case SegLevel
lvl of
SegThread SegVirt
_ Maybe KernelGrid
Nothing -> CallKernelGen KernelAttrs
mkGrid
SegThread SegVirt
_ (Just (KernelGrid Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size)) ->
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ Count NumGroups SubExp -> Count GroupSize SubExp -> KernelAttrs
defKernelAttrs Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size
SegGroup SegVirt
_ Maybe KernelGrid
Nothing -> CallKernelGen KernelAttrs
mkGrid
SegGroup SegVirt
_ (Just (KernelGrid Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size)) ->
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ Count NumGroups SubExp -> Count GroupSize SubExp -> KernelAttrs
defKernelAttrs Count NumGroups SubExp
num_groups Count GroupSize SubExp
group_size
SegThreadInGroup {} ->
forall a. HasCallStack => [Char] -> a
error [Char]
"lvlKernelAttrs: SegThreadInGroup"
where
mkGrid :: CallKernelGen KernelAttrs
mkGrid = do
TV Int64
group_size <- [Char] -> SizeClass -> ImpM GPUMem HostEnv HostOp (TV Int64)
getSize [Char]
"group_size" SizeClass
Imp.SizeGroup
TV Int64
num_groups <- [Char] -> SizeClass -> ImpM GPUMem HostEnv HostOp (TV Int64)
getSize [Char]
"num_groups" SizeClass
Imp.SizeNumGroups
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ Count NumGroups SubExp -> Count GroupSize SubExp -> KernelAttrs
defKernelAttrs (forall {k} (u :: k) e. e -> Count u e
Count forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> SubExp
tvSize TV Int64
num_groups) (forall {k} (u :: k) e. e -> Count u e
Count forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k). TV t -> SubExp
tvSize TV Int64
group_size)
sKernel ::
Operations GPUMem KernelEnv Imp.KernelOp ->
(KernelConstants -> Imp.TExp Int32) ->
String ->
VName ->
KernelAttrs ->
InKernelGen () ->
CallKernelGen ()
sKernel :: Operations GPUMem KernelEnv KernelOp
-> (KernelConstants -> TExp Int32)
-> [Char]
-> VName
-> KernelAttrs
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernel Operations GPUMem KernelEnv KernelOp
ops KernelConstants -> TExp Int32
flatf [Char]
name VName
v KernelAttrs
attrs InKernelGen ()
f = do
(KernelConstants
constants, InKernelGen ()
set_constants) <-
Count NumGroups SubExp
-> Count GroupSize SubExp
-> CallKernelGen (KernelConstants, InKernelGen ())
kernelInitialisationSimple (KernelAttrs -> Count NumGroups SubExp
kAttrNumGroups KernelAttrs
attrs) (KernelAttrs -> Count GroupSize SubExp
kAttrGroupSize KernelAttrs
attrs)
Name
name' <- forall {k} (rep :: k) r op. [Char] -> ImpM rep r op Name
nameForFun forall a b. (a -> b) -> a -> b
$ [Char]
name forall a. [a] -> [a] -> [a]
++ [Char]
"_" forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show (VName -> Int
baseTag VName
v)
KernelAttrs
-> KernelConstants
-> Operations GPUMem KernelEnv KernelOp
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelOp KernelAttrs
attrs KernelConstants
constants Operations GPUMem KernelEnv KernelOp
ops Name
name' forall a b. (a -> b) -> a -> b
$ do
InKernelGen ()
set_constants
forall {k1} {k2} (t :: k1) (rep :: k2) r op.
VName -> TExp t -> ImpM rep r op ()
dPrimV_ VName
v forall a b. (a -> b) -> a -> b
$ KernelConstants -> TExp Int32
flatf KernelConstants
constants
InKernelGen ()
f
sKernelThread ::
String ->
VName ->
KernelAttrs ->
InKernelGen () ->
CallKernelGen ()
sKernelThread :: [Char]
-> VName
-> KernelAttrs
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelThread = Operations GPUMem KernelEnv KernelOp
-> (KernelConstants -> TExp Int32)
-> [Char]
-> VName
-> KernelAttrs
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernel Operations GPUMem KernelEnv KernelOp
threadOperations KernelConstants -> TExp Int32
kernelGlobalThreadId
sKernelOp ::
KernelAttrs ->
KernelConstants ->
Operations GPUMem KernelEnv Imp.KernelOp ->
Name ->
InKernelGen () ->
CallKernelGen ()
sKernelOp :: KernelAttrs
-> KernelConstants
-> Operations GPUMem KernelEnv KernelOp
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelOp KernelAttrs
attrs KernelConstants
constants Operations GPUMem KernelEnv KernelOp
ops Name
name InKernelGen ()
m = do
HostEnv AtomicBinOp
atomics Target
_ Map VName Locks
locks <- forall {k} (rep :: k) r op. ImpM rep r op r
askEnv
Code KernelOp
body <- forall a. CallKernelGen a -> CallKernelGen a
makeAllMemoryGlobal forall a b. (a -> b) -> a -> b
$ forall {k} r' (rep :: k) op' a r op.
r'
-> Operations rep r' op'
-> ImpM rep r' op' a
-> ImpM rep r op (Code op')
subImpM_ (AtomicBinOp -> KernelConstants -> Map VName Locks -> KernelEnv
KernelEnv AtomicBinOp
atomics KernelConstants
constants Map VName Locks
locks) Operations GPUMem KernelEnv KernelOp
ops InKernelGen ()
m
[KernelUse]
uses <- forall a. FreeIn a => a -> [VName] -> CallKernelGen [KernelUse]
computeKernelUses Code KernelOp
body forall a. Monoid a => a
mempty
Either Exp KernelConst
group_size <- forall {k} {t :: k} {r} {op}.
TPrimExp t VName -> ImpM GPUMem r op (Either Exp KernelConst)
onGroupSize forall a b. (a -> b) -> a -> b
$ KernelConstants -> TPrimExp Int64 VName
kernelGroupSize KernelConstants
constants
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. a -> Code a
Imp.Op forall b c a. (b -> c) -> (a -> b) -> a -> c
. Kernel -> HostOp
Imp.CallKernel forall a b. (a -> b) -> a -> b
$
Imp.Kernel
{ kernelBody :: Code KernelOp
Imp.kernelBody = Code KernelOp
body,
kernelUses :: [KernelUse]
Imp.kernelUses = [KernelUse]
uses,
kernelNumGroups :: [Exp]
Imp.kernelNumGroups = [forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ KernelConstants -> TPrimExp Int64 VName
kernelNumGroups KernelConstants
constants],
kernelGroupSize :: [Either Exp KernelConst]
Imp.kernelGroupSize = [Either Exp KernelConst
group_size],
kernelName :: Name
Imp.kernelName = Name
name,
kernelFailureTolerant :: Bool
Imp.kernelFailureTolerant = KernelAttrs -> Bool
kAttrFailureTolerant KernelAttrs
attrs,
kernelCheckLocalMemory :: Bool
Imp.kernelCheckLocalMemory = KernelAttrs -> Bool
kAttrCheckLocalMemory KernelAttrs
attrs
}
where
onGroupSize :: TPrimExp t VName -> ImpM GPUMem r op (Either Exp KernelConst)
onGroupSize TPrimExp t VName
e = do
VTable GPUMem
vtable <- forall {k} (rep :: k) r op. ImpM rep r op (VTable rep)
getVTable
Maybe KernelConstExp
x <- forall {k} (rep :: k) r op.
VTable GPUMem -> Exp -> ImpM rep r op (Maybe KernelConstExp)
isConstExp VTable GPUMem
vtable forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped TPrimExp t VName
e
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$
case Maybe KernelConstExp
x of
Just (LeafExp KernelConst
kc PrimType
_) -> forall a b. b -> Either a b
Right KernelConst
kc
Maybe KernelConstExp
_ -> forall a b. a -> Either a b
Left forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped TPrimExp t VName
e
sKernelFailureTolerant ::
Bool ->
Operations GPUMem KernelEnv Imp.KernelOp ->
KernelConstants ->
Name ->
InKernelGen () ->
CallKernelGen ()
sKernelFailureTolerant :: Bool
-> Operations GPUMem KernelEnv KernelOp
-> KernelConstants
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelFailureTolerant Bool
tol Operations GPUMem KernelEnv KernelOp
ops KernelConstants
constants Name
name InKernelGen ()
m = do
KernelAttrs
-> KernelConstants
-> Operations GPUMem KernelEnv KernelOp
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelOp KernelAttrs
attrs KernelConstants
constants Operations GPUMem KernelEnv KernelOp
ops Name
name InKernelGen ()
m
where
attrs :: KernelAttrs
attrs =
( Count NumGroups SubExp -> Count GroupSize SubExp -> KernelAttrs
defKernelAttrs
(KernelConstants -> Count NumGroups SubExp
kernelNumGroupsCount KernelConstants
constants)
(KernelConstants -> Count GroupSize SubExp
kernelGroupSizeCount KernelConstants
constants)
)
{ kAttrFailureTolerant :: Bool
kAttrFailureTolerant = Bool
tol
}
threadOperations :: Operations GPUMem KernelEnv Imp.KernelOp
threadOperations :: Operations GPUMem KernelEnv KernelOp
threadOperations =
(forall {k} (rep :: k) inner op r.
(Mem rep inner, FreeIn op) =>
OpCompiler rep r op -> Operations rep r op
defaultOperations OpCompiler GPUMem KernelEnv KernelOp
compileThreadOp)
{ opsCopyCompiler :: CopyCompiler GPUMem KernelEnv KernelOp
opsCopyCompiler = forall {k} (rep :: k) r op. CopyCompiler rep r op
copyElementWise,
opsExpCompiler :: ExpCompiler GPUMem KernelEnv KernelOp
opsExpCompiler = ExpCompiler GPUMem KernelEnv KernelOp
compileThreadExp,
opsStmsCompiler :: StmsCompiler GPUMem KernelEnv KernelOp
opsStmsCompiler = \Names
_ -> forall {k} (rep :: k) inner op r.
(Mem rep inner, FreeIn op) =>
Names -> Stms rep -> ImpM rep r op () -> ImpM rep r op ()
defCompileStms forall a. Monoid a => a
mempty,
opsAllocCompilers :: Map Space (AllocCompiler GPUMem KernelEnv KernelOp)
opsAllocCompilers =
forall k a. Ord k => [(k, a)] -> Map k a
M.fromList [([Char] -> Space
Space [Char]
"local", forall r. AllocCompiler GPUMem r KernelOp
allocLocal)]
}
sReplicateKernel :: VName -> SubExp -> CallKernelGen ()
sReplicateKernel :: VName -> SubExp -> ImpM GPUMem HostEnv HostOp ()
sReplicateKernel VName
arr SubExp
se = do
TypeBase Shape NoUniqueness
t <- forall {k} (t :: k) (m :: * -> *).
HasScope t m =>
SubExp -> m (TypeBase Shape NoUniqueness)
subExpType SubExp
se
[SubExp]
ds <- forall a. Int -> [a] -> [a]
dropLast (forall shape u. ArrayShape shape => TypeBase shape u -> Int
arrayRank TypeBase Shape NoUniqueness
t) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall u. TypeBase Shape u -> [SubExp]
arrayDims forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) (m :: * -> *).
HasScope rep m =>
VName -> m (TypeBase Shape NoUniqueness)
lookupType VName
arr
let dims :: [TPrimExp Int64 VName]
dims = forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 forall a b. (a -> b) -> a -> b
$ [SubExp]
ds forall a. [a] -> [a] -> [a]
++ forall u. TypeBase Shape u -> [SubExp]
arrayDims TypeBase Shape NoUniqueness
t
TPrimExp Int64 VName
n <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"replicate_n" forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
product forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 [TPrimExp Int64 VName]
dims
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise, KernelConstants
constants) <- TPrimExp Int64 VName
-> [Char]
-> CallKernelGen
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen (),
KernelConstants)
simpleKernelConstants TPrimExp Int64 VName
n [Char]
"replicate"
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let name :: Name
name =
Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$
[Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$
[Char]
"replicate_" forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show (VName -> Int
baseTag forall a b. (a -> b) -> a -> b
$ KernelConstants -> VName
kernelGlobalThreadIdVar KernelConstants
constants)
Bool
-> Operations GPUMem KernelEnv KernelOp
-> KernelConstants
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelFailureTolerant Bool
True Operations GPUMem KernelEnv KernelOp
threadOperations KernelConstants
constants Name
name forall a b. (a -> b) -> a -> b
$
(TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise forall a b. (a -> b) -> a -> b
$ \TPrimExp Int64 VName
gtid -> do
[TPrimExp Int64 VName]
is' <- forall {k} (rep :: k) r op.
[Char]
-> [TPrimExp Int64 VName]
-> TPrimExp Int64 VName
-> ImpM rep r op [TPrimExp Int64 VName]
dIndexSpace' [Char]
"rep_i" [TPrimExp Int64 VName]
dims TPrimExp Int64 VName
gtid
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TPrimExp Int64 VName
gtid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TPrimExp Int64 VName
n) forall a b. (a -> b) -> a -> b
$
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
arr [TPrimExp Int64 VName]
is' SubExp
se forall a b. (a -> b) -> a -> b
$
forall a. Int -> [a] -> [a]
drop (forall (t :: * -> *) a. Foldable t => t a -> Int
length [SubExp]
ds) [TPrimExp Int64 VName]
is'
replicateName :: PrimType -> String
replicateName :: PrimType -> [Char]
replicateName PrimType
bt = [Char]
"replicate_" forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString PrimType
bt
replicateForType :: PrimType -> CallKernelGen Name
replicateForType :: PrimType -> ImpM GPUMem HostEnv HostOp Name
replicateForType PrimType
bt = do
let fname :: Name
fname = [Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$ [Char]
"builtin#" forall a. Semigroup a => a -> a -> a
<> PrimType -> [Char]
replicateName PrimType
bt
Bool
exists <- forall {k} (rep :: k) r op. Name -> ImpM rep r op Bool
hasFunction Name
fname
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless Bool
exists forall a b. (a -> b) -> a -> b
$ do
VName
mem <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"mem"
VName
num_elems <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"num_elems"
VName
val <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"val"
let params :: [Param]
params =
[ VName -> Space -> Param
Imp.MemParam VName
mem ([Char] -> Space
Space [Char]
"device"),
VName -> PrimType -> Param
Imp.ScalarParam VName
num_elems PrimType
int64,
VName -> PrimType -> Param
Imp.ScalarParam VName
val PrimType
bt
]
shape :: Shape
shape = forall d. [d] -> ShapeBase d
Shape [VName -> SubExp
Var VName
num_elems]
forall {k} (rep :: k) r op.
Name -> [Param] -> [Param] -> ImpM rep r op () -> ImpM rep r op ()
function Name
fname [] [Param]
params forall a b. (a -> b) -> a -> b
$ do
VName
arr <-
forall {k} (rep :: k) r op.
[Char]
-> PrimType -> Shape -> VName -> IxFun -> ImpM rep r op VName
sArray [Char]
"arr" PrimType
bt Shape
shape VName
mem forall a b. (a -> b) -> a -> b
$ forall num. IntegralExp num => Shape num -> IxFun num
IxFun.iota forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 forall a b. (a -> b) -> a -> b
$ forall d. ShapeBase d -> [d]
shapeDims Shape
shape
VName -> SubExp -> ImpM GPUMem HostEnv HostOp ()
sReplicateKernel VName
arr forall a b. (a -> b) -> a -> b
$ VName -> SubExp
Var VName
val
forall (f :: * -> *) a. Applicative f => a -> f a
pure Name
fname
replicateIsFill :: VName -> SubExp -> CallKernelGen (Maybe (CallKernelGen ()))
replicateIsFill :: VName
-> SubExp -> CallKernelGen (Maybe (ImpM GPUMem HostEnv HostOp ()))
replicateIsFill VName
arr SubExp
v = do
ArrayEntry (MemLoc VName
arr_mem [SubExp]
arr_shape IxFun
arr_ixfun) PrimType
_ <- forall {k} (rep :: k) r op. VName -> ImpM rep r op ArrayEntry
lookupArray VName
arr
TypeBase Shape NoUniqueness
v_t <- forall {k} (t :: k) (m :: * -> *).
HasScope t m =>
SubExp -> m (TypeBase Shape NoUniqueness)
subExpType SubExp
v
case TypeBase Shape NoUniqueness
v_t of
Prim PrimType
v_t'
| forall num. (Eq num, IntegralExp num) => IxFun num -> Bool
IxFun.isLinear IxFun
arr_ixfun -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$
forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ do
Name
fname <- PrimType -> ImpM GPUMem HostEnv HostOp Name
replicateForType PrimType
v_t'
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall a b. (a -> b) -> a -> b
$
forall a. [VName] -> Name -> [Arg] -> Code a
Imp.Call
[]
Name
fname
[ VName -> Arg
Imp.MemArg VName
arr_mem,
Exp -> Arg
Imp.ExpArg forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
product forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 [SubExp]
arr_shape,
Exp -> Arg
Imp.ExpArg forall a b. (a -> b) -> a -> b
$ forall a. ToExp a => PrimType -> a -> Exp
toExp' PrimType
v_t' SubExp
v
]
TypeBase Shape NoUniqueness
_ -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a. Maybe a
Nothing
sReplicate :: VName -> SubExp -> CallKernelGen ()
sReplicate :: VName -> SubExp -> ImpM GPUMem HostEnv HostOp ()
sReplicate VName
arr SubExp
se = do
Maybe (ImpM GPUMem HostEnv HostOp ())
is_fill <- VName
-> SubExp -> CallKernelGen (Maybe (ImpM GPUMem HostEnv HostOp ()))
replicateIsFill VName
arr SubExp
se
case Maybe (ImpM GPUMem HostEnv HostOp ())
is_fill of
Just ImpM GPUMem HostEnv HostOp ()
m -> ImpM GPUMem HostEnv HostOp ()
m
Maybe (ImpM GPUMem HostEnv HostOp ())
Nothing -> VName -> SubExp -> ImpM GPUMem HostEnv HostOp ()
sReplicateKernel VName
arr SubExp
se
sIotaKernel ::
VName ->
Imp.TExp Int64 ->
Imp.Exp ->
Imp.Exp ->
IntType ->
CallKernelGen ()
sIotaKernel :: VName
-> TPrimExp Int64 VName
-> Exp
-> Exp
-> IntType
-> ImpM GPUMem HostEnv HostOp ()
sIotaKernel VName
arr TPrimExp Int64 VName
n Exp
x Exp
s IntType
et = do
MemLoc
destloc <- ArrayEntry -> MemLoc
entryArrayLoc forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k} (rep :: k) r op. VName -> ImpM rep r op ArrayEntry
lookupArray VName
arr
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise, KernelConstants
constants) <- TPrimExp Int64 VName
-> [Char]
-> CallKernelGen
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen (),
KernelConstants)
simpleKernelConstants TPrimExp Int64 VName
n [Char]
"iota"
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let name :: Name
name =
Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$
[Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$
[Char]
"iota_"
forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString IntType
et
forall a. [a] -> [a] -> [a]
++ [Char]
"_"
forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show (VName -> Int
baseTag forall a b. (a -> b) -> a -> b
$ KernelConstants -> VName
kernelGlobalThreadIdVar KernelConstants
constants)
Bool
-> Operations GPUMem KernelEnv KernelOp
-> KernelConstants
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelFailureTolerant Bool
True Operations GPUMem KernelEnv KernelOp
threadOperations KernelConstants
constants Name
name forall a b. (a -> b) -> a -> b
$
(TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise forall a b. (a -> b) -> a -> b
$ \TPrimExp Int64 VName
gtid ->
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TPrimExp Int64 VName
gtid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TPrimExp Int64 VName
n) forall a b. (a -> b) -> a -> b
$ do
(VName
destmem, Space
destspace, Count Elements (TPrimExp Int64 VName)
destidx) <- forall {k} (rep :: k) r op.
MemLoc
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray' MemLoc
destloc [TPrimExp Int64 VName
gtid]
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall a b. (a -> b) -> a -> b
$
forall a.
VName
-> Count Elements (TPrimExp Int64 VName)
-> PrimType
-> Space
-> Volatility
-> Exp
-> Code a
Imp.Write VName
destmem Count Elements (TPrimExp Int64 VName)
destidx (IntType -> PrimType
IntType IntType
et) Space
destspace Volatility
Imp.Nonvolatile forall a b. (a -> b) -> a -> b
$
forall v. BinOp -> PrimExp v -> PrimExp v -> PrimExp v
BinOpExp
(IntType -> Overflow -> BinOp
Add IntType
et Overflow
OverflowWrap)
(forall v. BinOp -> PrimExp v -> PrimExp v -> PrimExp v
BinOpExp (IntType -> Overflow -> BinOp
Mul IntType
et Overflow
OverflowWrap) (forall v. IntType -> PrimExp v -> PrimExp v
Imp.sExt IntType
et forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped TPrimExp Int64 VName
gtid) Exp
s)
Exp
x
iotaName :: IntType -> String
iotaName :: IntType -> [Char]
iotaName IntType
bt = [Char]
"iota_" forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> [Char]
prettyString IntType
bt
iotaForType :: IntType -> CallKernelGen Name
iotaForType :: IntType -> ImpM GPUMem HostEnv HostOp Name
iotaForType IntType
bt = do
let fname :: Name
fname = [Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$ [Char]
"builtin#" forall a. Semigroup a => a -> a -> a
<> IntType -> [Char]
iotaName IntType
bt
Bool
exists <- forall {k} (rep :: k) r op. Name -> ImpM rep r op Bool
hasFunction Name
fname
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless Bool
exists forall a b. (a -> b) -> a -> b
$ do
VName
mem <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"mem"
VName
n <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"n"
VName
x <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"x"
VName
s <- forall (m :: * -> *). MonadFreshNames m => [Char] -> m VName
newVName [Char]
"s"
let params :: [Param]
params =
[ VName -> Space -> Param
Imp.MemParam VName
mem ([Char] -> Space
Space [Char]
"device"),
VName -> PrimType -> Param
Imp.ScalarParam VName
n PrimType
int32,
VName -> PrimType -> Param
Imp.ScalarParam VName
x forall a b. (a -> b) -> a -> b
$ IntType -> PrimType
IntType IntType
bt,
VName -> PrimType -> Param
Imp.ScalarParam VName
s forall a b. (a -> b) -> a -> b
$ IntType -> PrimType
IntType IntType
bt
]
shape :: Shape
shape = forall d. [d] -> ShapeBase d
Shape [VName -> SubExp
Var VName
n]
n' :: TPrimExp Int64 VName
n' = forall a. a -> TPrimExp Int64 a
Imp.le64 VName
n
x' :: Exp
x' = VName -> PrimType -> Exp
Imp.var VName
x forall a b. (a -> b) -> a -> b
$ IntType -> PrimType
IntType IntType
bt
s' :: Exp
s' = VName -> PrimType -> Exp
Imp.var VName
s forall a b. (a -> b) -> a -> b
$ IntType -> PrimType
IntType IntType
bt
forall {k} (rep :: k) r op.
Name -> [Param] -> [Param] -> ImpM rep r op () -> ImpM rep r op ()
function Name
fname [] [Param]
params forall a b. (a -> b) -> a -> b
$ do
VName
arr <-
forall {k} (rep :: k) r op.
[Char]
-> PrimType -> Shape -> VName -> IxFun -> ImpM rep r op VName
sArray [Char]
"arr" (IntType -> PrimType
IntType IntType
bt) Shape
shape VName
mem forall a b. (a -> b) -> a -> b
$
forall num. IntegralExp num => Shape num -> IxFun num
IxFun.iota forall a b. (a -> b) -> a -> b
$
forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 forall a b. (a -> b) -> a -> b
$
forall d. ShapeBase d -> [d]
shapeDims Shape
shape
VName
-> TPrimExp Int64 VName
-> Exp
-> Exp
-> IntType
-> ImpM GPUMem HostEnv HostOp ()
sIotaKernel VName
arr (forall {k} (t :: k) v. IntExp t => TPrimExp t v -> TPrimExp Int64 v
sExt64 TPrimExp Int64 VName
n') Exp
x' Exp
s' IntType
bt
forall (f :: * -> *) a. Applicative f => a -> f a
pure Name
fname
sIota ::
VName ->
Imp.TExp Int64 ->
Imp.Exp ->
Imp.Exp ->
IntType ->
CallKernelGen ()
sIota :: VName
-> TPrimExp Int64 VName
-> Exp
-> Exp
-> IntType
-> ImpM GPUMem HostEnv HostOp ()
sIota VName
arr TPrimExp Int64 VName
n Exp
x Exp
s IntType
et = do
ArrayEntry (MemLoc VName
arr_mem [SubExp]
_ IxFun
arr_ixfun) PrimType
_ <- forall {k} (rep :: k) r op. VName -> ImpM rep r op ArrayEntry
lookupArray VName
arr
if forall num. (Eq num, IntegralExp num) => IxFun num -> Bool
IxFun.isLinear IxFun
arr_ixfun
then do
Name
fname <- IntType -> ImpM GPUMem HostEnv HostOp Name
iotaForType IntType
et
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall a b. (a -> b) -> a -> b
$
forall a. [VName] -> Name -> [Arg] -> Code a
Imp.Call
[]
Name
fname
[VName -> Arg
Imp.MemArg VName
arr_mem, Exp -> Arg
Imp.ExpArg forall a b. (a -> b) -> a -> b
$ forall {k} (t :: k) v. TPrimExp t v -> PrimExp v
untyped TPrimExp Int64 VName
n, Exp -> Arg
Imp.ExpArg Exp
x, Exp -> Arg
Imp.ExpArg Exp
s]
else VName
-> TPrimExp Int64 VName
-> Exp
-> Exp
-> IntType
-> ImpM GPUMem HostEnv HostOp ()
sIotaKernel VName
arr TPrimExp Int64 VName
n Exp
x Exp
s IntType
et
sCopyKernel :: CopyCompiler GPUMem HostEnv Imp.HostOp
sCopyKernel :: CopyCompiler GPUMem HostEnv HostOp
sCopyKernel PrimType
pt destloc :: MemLoc
destloc@(MemLoc VName
destmem [SubExp]
_ IxFun
_) srcloc :: MemLoc
srcloc@(MemLoc VName
srcmem [SubExp]
srcdims IxFun
_) = do
let shape :: [TPrimExp Int64 VName]
shape = forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 [SubExp]
srcdims
kernel_size :: TPrimExp Int64 VName
kernel_size = forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
product [TPrimExp Int64 VName]
shape
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise, KernelConstants
constants) <- TPrimExp Int64 VName
-> [Char]
-> CallKernelGen
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen (),
KernelConstants)
simpleKernelConstants TPrimExp Int64 VName
kernel_size [Char]
"copy"
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let name :: Name
name =
Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$
[Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$
[Char]
"copy_" forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show (VName -> Int
baseTag forall a b. (a -> b) -> a -> b
$ KernelConstants -> VName
kernelGlobalThreadIdVar KernelConstants
constants)
Bool
-> Operations GPUMem KernelEnv KernelOp
-> KernelConstants
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelFailureTolerant Bool
True Operations GPUMem KernelEnv KernelOp
threadOperations KernelConstants
constants Name
name forall a b. (a -> b) -> a -> b
$
(TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise forall a b. (a -> b) -> a -> b
$ \TPrimExp Int64 VName
gtid -> do
[TPrimExp Int64 VName]
is <- forall {k} (rep :: k) r op.
[Char]
-> [TPrimExp Int64 VName]
-> TPrimExp Int64 VName
-> ImpM rep r op [TPrimExp Int64 VName]
dIndexSpace' [Char]
"copy_i" [TPrimExp Int64 VName]
shape TPrimExp Int64 VName
gtid
(VName
_, Space
destspace, Count Elements (TPrimExp Int64 VName)
destidx) <- forall {k} (rep :: k) r op.
MemLoc
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray' MemLoc
destloc [TPrimExp Int64 VName]
is
(VName
_, Space
srcspace, Count Elements (TPrimExp Int64 VName)
srcidx) <- forall {k} (rep :: k) r op.
MemLoc
-> [TPrimExp Int64 VName]
-> ImpM
rep r op (VName, Space, Count Elements (TPrimExp Int64 VName))
fullyIndexArray' MemLoc
srcloc [TPrimExp Int64 VName]
is
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TPrimExp Int64 VName
gtid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TPrimExp Int64 VName
kernel_size) forall a b. (a -> b) -> a -> b
$ do
VName
tmp <- forall {k} (t :: k). TV t -> VName
tvVar forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall {k1} {k2} (rep :: k1) r op (t :: k2).
[Char] -> PrimType -> ImpM rep r op (TV t)
dPrim [Char]
"tmp" PrimType
pt
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall a b. (a -> b) -> a -> b
$ forall a.
VName
-> VName
-> Count Elements (TPrimExp Int64 VName)
-> PrimType
-> Space
-> Volatility
-> Code a
Imp.Read VName
tmp VName
srcmem Count Elements (TPrimExp Int64 VName)
srcidx PrimType
pt Space
srcspace Volatility
Imp.Nonvolatile
forall {k} op (rep :: k) r. Code op -> ImpM rep r op ()
emit forall a b. (a -> b) -> a -> b
$ forall a.
VName
-> Count Elements (TPrimExp Int64 VName)
-> PrimType
-> Space
-> Volatility
-> Exp
-> Code a
Imp.Write VName
destmem Count Elements (TPrimExp Int64 VName)
destidx PrimType
pt Space
destspace Volatility
Imp.Nonvolatile forall a b. (a -> b) -> a -> b
$ VName -> PrimType -> Exp
Imp.var VName
tmp PrimType
pt
sRotateKernel :: VName -> [Imp.TExp Int64] -> VName -> CallKernelGen ()
sRotateKernel :: VName
-> [TPrimExp Int64 VName] -> VName -> ImpM GPUMem HostEnv HostOp ()
sRotateKernel VName
dest [TPrimExp Int64 VName]
rs VName
src = do
TypeBase Shape NoUniqueness
t <- forall {k} (rep :: k) (m :: * -> *).
HasScope rep m =>
VName -> m (TypeBase Shape NoUniqueness)
lookupType VName
src
let ds :: [TPrimExp Int64 VName]
ds = forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 forall a b. (a -> b) -> a -> b
$ forall u. TypeBase Shape u -> [SubExp]
arrayDims TypeBase Shape NoUniqueness
t
TPrimExp Int64 VName
n <- forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"rotate_n" forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
product [TPrimExp Int64 VName]
ds
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise, KernelConstants
constants) <- TPrimExp Int64 VName
-> [Char]
-> CallKernelGen
((TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen (),
KernelConstants)
simpleKernelConstants TPrimExp Int64 VName
n [Char]
"rotate"
Maybe Name
fname <- forall {k} (rep :: k) r op. ImpM rep r op (Maybe Name)
askFunction
let name :: Name
name =
Maybe Name -> Name -> Name
keyWithEntryPoint Maybe Name
fname forall a b. (a -> b) -> a -> b
$
[Char] -> Name
nameFromString forall a b. (a -> b) -> a -> b
$
[Char]
"rotate_" forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show (VName -> Int
baseTag forall a b. (a -> b) -> a -> b
$ KernelConstants -> VName
kernelGlobalThreadIdVar KernelConstants
constants)
Bool
-> Operations GPUMem KernelEnv KernelOp
-> KernelConstants
-> Name
-> InKernelGen ()
-> ImpM GPUMem HostEnv HostOp ()
sKernelFailureTolerant Bool
True Operations GPUMem KernelEnv KernelOp
threadOperations KernelConstants
constants Name
name forall a b. (a -> b) -> a -> b
$
(TPrimExp Int64 VName -> InKernelGen ()) -> InKernelGen ()
virtualise forall a b. (a -> b) -> a -> b
$ \TPrimExp Int64 VName
gtid -> forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen (TPrimExp Int64 VName
gtid forall {k} (t :: k) v.
TPrimExp t v -> TPrimExp t v -> TPrimExp Bool v
.<. TPrimExp Int64 VName
n) forall a b. (a -> b) -> a -> b
$ do
[TPrimExp Int64 VName]
is' <- forall {k} (rep :: k) r op.
[Char]
-> [TPrimExp Int64 VName]
-> TPrimExp Int64 VName
-> ImpM rep r op [TPrimExp Int64 VName]
dIndexSpace' [Char]
"rep_i" [TPrimExp Int64 VName]
ds TPrimExp Int64 VName
gtid
[TPrimExp Int64 VName]
is'' <- forall (t :: * -> *) (m :: * -> *) a.
(Traversable t, Monad m) =>
t (m a) -> m (t a)
sequence forall a b. (a -> b) -> a -> b
$ forall a b c d. (a -> b -> c -> d) -> [a] -> [b] -> [c] -> [d]
zipWith3 forall {k2} {rep :: k2} {r} {op}.
TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> ImpM rep r op (TPrimExp Int64 VName)
rotate [TPrimExp Int64 VName]
ds [TPrimExp Int64 VName]
rs [TPrimExp Int64 VName]
is'
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix VName
dest [TPrimExp Int64 VName]
is' (VName -> SubExp
Var VName
src) [TPrimExp Int64 VName]
is''
where
rotate :: TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> ImpM rep r op (TPrimExp Int64 VName)
rotate TPrimExp Int64 VName
d TPrimExp Int64 VName
r TPrimExp Int64 VName
i = forall {k1} {k2} (t :: k1) (rep :: k2) r op.
[Char] -> TExp t -> ImpM rep r op (TExp t)
dPrimVE [Char]
"rot_i" forall a b. (a -> b) -> a -> b
$ TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> TPrimExp Int64 VName
-> TPrimExp Int64 VName
rotateIndex TPrimExp Int64 VName
d TPrimExp Int64 VName
r TPrimExp Int64 VName
i
compileThreadResult ::
SegSpace ->
PatElem LetDecMem ->
KernelResult ->
InKernelGen ()
compileThreadResult :: SegSpace -> PatElem LParamMem -> KernelResult -> InKernelGen ()
compileThreadResult SegSpace
_ PatElem LParamMem
_ RegTileReturns {} =
forall a. [Char] -> a
compilerLimitationS [Char]
"compileThreadResult: RegTileReturns not yet handled."
compileThreadResult SegSpace
space PatElem LParamMem
pe (Returns ResultManifest
_ Certs
_ SubExp
what) = do
let is :: [TPrimExp Int64 VName]
is = forall a b. (a -> b) -> [a] -> [b]
map (forall a. a -> TPrimExp Int64 a
Imp.le64 forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a, b) -> a
fst) forall a b. (a -> b) -> a -> b
$ SegSpace -> [(VName, SubExp)]
unSegSpace SegSpace
space
forall {k} (rep :: k) r op.
VName
-> [TPrimExp Int64 VName]
-> SubExp
-> [TPrimExp Int64 VName]
-> ImpM rep r op ()
copyDWIMFix (forall dec. PatElem dec -> VName
patElemName PatElem LParamMem
pe) [TPrimExp Int64 VName]
is SubExp
what []
compileThreadResult SegSpace
_ PatElem LParamMem
pe (WriteReturns Certs
_ (Shape [SubExp]
rws) VName
_arr [(Slice SubExp, SubExp)]
dests) = do
let rws' :: [TPrimExp Int64 VName]
rws' = forall a b. (a -> b) -> [a] -> [b]
map SubExp -> TPrimExp Int64 VName
pe64 [SubExp]
rws
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ [(Slice SubExp, SubExp)]
dests forall a b. (a -> b) -> a -> b
$ \(Slice SubExp
slice, SubExp
e) -> do
let slice' :: Slice (TPrimExp Int64 VName)
slice' = forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap SubExp -> TPrimExp Int64 VName
pe64 Slice SubExp
slice
write :: TExp Bool
write = Slice (TPrimExp Int64 VName) -> [TPrimExp Int64 VName] -> TExp Bool
inBounds Slice (TPrimExp Int64 VName)
slice' [TPrimExp Int64 VName]
rws'
forall {k} (rep :: k) r op.
TExp Bool -> ImpM rep r op () -> ImpM rep r op ()
sWhen TExp Bool
write forall a b. (a -> b) -> a -> b
$ forall {k} (rep :: k) r op.
VName
-> [DimIndex (TPrimExp Int64 VName)]
-> SubExp
-> [DimIndex (TPrimExp Int64 VName)]
-> ImpM rep r op ()
copyDWIM (forall dec. PatElem dec -> VName
patElemName PatElem LParamMem
pe) (forall d. Slice d -> [DimIndex d]
unSlice Slice (TPrimExp Int64 VName)
slice') SubExp
e []
compileThreadResult SegSpace
_ PatElem LParamMem
_ TileReturns {} =
forall a. [Char] -> a
compilerBugS [Char]
"compileThreadResult: TileReturns unhandled."