Foreign.CUDA.Driver.Context.Peer

Direct peer context access functions for the low-level driver interface.

Since: CUDA-4.0

Peer Access

data PeerFlag

Possible option values for direct peer memory access

Instances

Enum PeerFlag

Defined in Foreign.CUDA.Driver.Context.Peer

Methods

succ :: PeerFlag -> PeerFlag

pred :: PeerFlag -> PeerFlag

toEnum :: Int -> PeerFlag

fromEnum :: PeerFlag -> Int

enumFrom :: PeerFlag -> [PeerFlag]

enumFromThen :: PeerFlag -> PeerFlag -> [PeerFlag]

enumFromTo :: PeerFlag -> PeerFlag -> [PeerFlag]

enumFromThenTo :: PeerFlag -> PeerFlag -> PeerFlag -> [PeerFlag]

data PeerAttribute

Peer-to-peer attributes

Constructors

PerformanceRank

AccessSupported

NativeAtomicSupported

AccessAccessSupported

CudaArrayAccessSupported

Instances

Enum PeerAttribute

Defined in Foreign.CUDA.Driver.Context.Peer

Methods

succ :: PeerAttribute -> PeerAttribute

pred :: PeerAttribute -> PeerAttribute

toEnum :: Int -> PeerAttribute

fromEnum :: PeerAttribute -> Int

enumFrom :: PeerAttribute -> [PeerAttribute]

enumFromThen :: PeerAttribute -> PeerAttribute -> [PeerAttribute]

enumFromTo :: PeerAttribute -> PeerAttribute -> [PeerAttribute]

enumFromThenTo :: PeerAttribute -> PeerAttribute -> PeerAttribute -> [PeerAttribute]

Show PeerAttribute

Defined in Foreign.CUDA.Driver.Context.Peer

Methods

showsPrec :: Int -> PeerAttribute -> ShowS

show :: PeerAttribute -> String

showList :: [PeerAttribute] -> ShowS

Eq PeerAttribute

Defined in Foreign.CUDA.Driver.Context.Peer

Methods

(==) :: PeerAttribute -> PeerAttribute -> Bool

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

accessible :: Device -> Device -> IO Bool

Queries if the first device can directly access the memory of the second. If direct access is possible, it can then be enabled with add.

Requires CUDA-4.0.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__PEER__ACCESS.html#group__CUDA__PEER__ACCESS_1g496bdaae1f632ebfb695b99d2c40f19e

add :: Context -> [PeerFlag] -> IO ()

If the devices of both the current and supplied contexts support unified addressing, then enable allocations in the supplied context to be accessible by the current context.

Note that access is unidirectional, and in order to access memory in the current context from the peer context, a separate symmetric call to add is required.

Requires CUDA-4.0.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__PEER__ACCESS.html#group__CUDA__PEER__ACCESS_1g0889ec6728e61c05ed359551d67b3f5a

remove :: Context -> IO ()

Disable direct memory access from the current context to the supplied peer context, and unregisters any registered allocations.

Requires CUDA-4.0.

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__PEER__ACCESS.html#group__CUDA__PEER__ACCESS_1g5b4b6936ea868d4954ce4d841a3b4810

getAttribute :: PeerAttribute -> Device -> Device -> IO Int

Queries attributes of the link between two devices

http://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__PEER__ACCESS.html#group__CUDA__PEER__ACCESS_1g4c55c60508f8eba4546b51f2ee545393

Requires CUDA-8.0

since 0.9.0.0