Foreign.CUDA.Driver.Context.Base

Context management for the low-level driver interface

Context Management

newtype Context

A device context

Constructors

Context

Fields

• useContext :: Ptr ()

Instances

Eq Context

Methods

(==) :: Context -> Context -> Bool

(/=) :: Context -> Context -> Bool

Show Context

Methods

showsPrec :: Int -> Context -> ShowS

show :: Context -> String

showList :: [Context] -> ShowS

data ContextFlag

Context creation flags

Constructors

SchedAuto

SchedSpin

SchedYield

SchedBlockingSync

BlockingSync

Deprecated: use SchedBlockingSync instead

SchedMask

MapHost

LmemResizeToMax

FlagsMask

Instances

Bounded ContextFlag

Methods

minBound :: ContextFlag

maxBound :: ContextFlag

Enum ContextFlag

Methods

succ :: ContextFlag -> ContextFlag

pred :: ContextFlag -> ContextFlag

toEnum :: Int -> ContextFlag

fromEnum :: ContextFlag -> Int

enumFrom :: ContextFlag -> [ContextFlag]

enumFromThen :: ContextFlag -> ContextFlag -> [ContextFlag]

enumFromTo :: ContextFlag -> ContextFlag -> [ContextFlag]

enumFromThenTo :: ContextFlag -> ContextFlag -> ContextFlag -> [ContextFlag]

Eq ContextFlag

Methods

(==) :: ContextFlag -> ContextFlag -> Bool

(/=) :: ContextFlag -> ContextFlag -> Bool

Show ContextFlag

Methods

showsPrec :: Int -> ContextFlag -> ShowS

show :: ContextFlag -> String

showList :: [ContextFlag] -> ShowS

create :: Device -> [ContextFlag] -> IO Context

Create a new CUDA context and associate it with the calling thread. The context is created with a usage count of one, and the caller of create must call destroy when done using the context. If a context is already current to the thread, it is supplanted by the newly created context and must be restored by a subsequent call to pop.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g65dc0012348bc84810e2103a40d8e2cf

destroy :: Context -> IO ()

Destroy the specified context, regardless of how many threads it is current to. The context will be poped from the current thread's context stack, but if it is current on any other threads it will remain current to those threads, and attempts to access it will result in an error.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g27a365aebb0eb548166309f58a1e8b8e

device :: IO Device

Return the device of the currently active context

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g4e84b109eba36cdaaade167f34ae881e

pop :: IO Context

Pop the current CUDA context from the CPU thread. The context may then be attached to a different CPU thread by calling push.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g2fac188026a062d92e91a8687d0a7902

push :: Context -> IO ()

Push the given context onto the CPU's thread stack of current contexts. The specified context becomes the CPU thread's current context, so all operations that operate on the current context are affected.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1gb02d4c850eb16f861fe5a29682cc90ba

sync :: IO ()

Block until the device has completed all preceding requests. If the context was created with the SchedBlockingSync flag, the CPU thread will block until the GPU has finished its work.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g7a54725f28d34b8c6299f0c6ca579616

get :: IO (Maybe Context)

Return the context bound to the calling CPU thread.

Requires CUDA-4.0.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1g8f13165846b73750693640fb3e8380d0

set :: Context -> IO ()

Bind the specified context to the calling thread.

Requires CUDA-4.0.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__CTX.html#group__CUDA__CTX_1gbe562ee6258b4fcc272ca6478ca2a2f7

attach :: Context -> [ContextFlag] -> IO ()

Deprecated: as of CUDA-4.0

Increments the usage count of the context. API: no context flags are currently supported, so this parameter must be empty.

detach :: Context -> IO ()

Deprecated: as of CUDA-4.0

Detach the context, and destroy if no longer used