4.9. Context Management [DEPRECATED]

This section describes the deprecated context management functions of the low-level CUDA driver application programming interface.

Functions

CUresult cuCtxAttach ( CUcontext* pctx, unsigned int  flags )
Increment a context's usage-count.
CUresult cuCtxDetach ( CUcontext ctx )
Decrement a context's usage-count.

Functions

CUresult cuCtxAttach ( CUcontext* pctx, unsigned int  flags )
Increment a context's usage-count.
Parameters
pctx
- Returned context handle of the current context
flags
- Context attach flags (must be 0)
Deprecated

Note that this function is deprecated and should not be used.

Description

Increments the usage count of the context and passes back a context handle in *pctx that must be passed to cuCtxDetach() when the application is done with the context. cuCtxAttach() fails if there is no context current to the thread.

Currently, the flags parameter must be 0.

Note:

Note that this function may also return error codes from previous, asynchronous launches.

See also:

cuCtxCreate, cuCtxDestroy, cuCtxDetach, cuCtxGetApiVersion, cuCtxGetCacheConfig, cuCtxGetDevice, cuCtxGetFlags, cuCtxGetLimit, cuCtxPopCurrent, cuCtxPushCurrent, cuCtxSetCacheConfig, cuCtxSetLimit, cuCtxSynchronize

CUresult cuCtxDetach ( CUcontext ctx )
Decrement a context's usage-count.
Parameters
ctx
- Context to destroy
Deprecated

Note that this function is deprecated and should not be used.

Description

Decrements the usage count of the context ctx, and destroys the context if the usage count goes to 0. The context must be a handle that was passed back by cuCtxCreate() or cuCtxAttach(), and must be current to the calling thread.

Note:

Note that this function may also return error codes from previous, asynchronous launches.

See also:

cuCtxCreate, cuCtxDestroy, cuCtxGetApiVersion, cuCtxGetCacheConfig, cuCtxGetDevice, cuCtxGetFlags, cuCtxGetLimit, cuCtxPopCurrent, cuCtxPushCurrent, cuCtxSetCacheConfig, cuCtxSetLimit, cuCtxSynchronize