Function cuCtxGetCacheConfig

pub unsafe extern "C" fn cuCtxGetCacheConfig(
    pconfig: *mut CUfunc_cache,
) -> CUresult

\brief Returns the preferred cache configuration for the current context.

On devices where the L1 cache and shared memory use the same hardware resources, this function returns through \p pconfig the preferred cache configuration for the current context. This is only a preference. The driver will use the requested configuration if possible, but it is free to choose a different configuration if required to execute functions.

This will return a \p pconfig of ::CU_FUNC_CACHE_PREFER_NONE on devices where the size of the L1 cache and shared memory are fixed.

The supported cache configurations are:

• ::CU_FUNC_CACHE_PREFER_NONE: no preference for shared memory or L1 (default)
• ::CU_FUNC_CACHE_PREFER_SHARED: prefer larger shared memory and smaller L1 cache
• ::CU_FUNC_CACHE_PREFER_L1: prefer larger L1 cache and smaller shared memory
• ::CU_FUNC_CACHE_PREFER_EQUAL: prefer equal sized L1 cache and shared memory

\param pconfig - Returned cache configuration

\return ::CUDA_SUCCESS, ::CUDA_ERROR_DEINITIALIZED, ::CUDA_ERROR_NOT_INITIALIZED, ::CUDA_ERROR_INVALID_CONTEXT, ::CUDA_ERROR_INVALID_VALUE \notefnerr

\sa ::cuCtxCreate, ::cuCtxDestroy, ::cuCtxGetApiVersion, ::cuCtxGetDevice, ::cuCtxGetFlags, ::cuCtxGetLimit, ::cuCtxPopCurrent, ::cuCtxPushCurrent, ::cuCtxSetCacheConfig, ::cuCtxSetLimit, ::cuCtxSynchronize, ::cuFuncSetCacheConfig, ::cudaDeviceGetCacheConfig