CUDA L1 Cache/shared memory 配置函数

CUDA L1 Cache/shared memory 配置函数

用于NVIDIA 的 Fermi、 Kepler 以及最新Volta (我猜测未来)架构 缓存配置函数

CUDA function cache configurations

function

Sets the preferred cache configuration for a device function.

    __host__ cudaError_t cudaFuncSetCacheConfig ( const void* func, cudaFuncCache cacheConfig )

parameter

1. kernel 函数名
2. enum cudaFuncCache

Values

    cudaFuncCachePreferNone = 0
    //Default function cache configuration, no preference

    cudaFuncCachePreferShared = 1
    //Prefer larger shared memory and smaller L1 cache

    cudaFuncCachePreferL1 = 2
    //Prefer larger L1 cache and smaller shared memory

    cudaFuncCachePreferEqual = 3
    //Prefer equal size L1 cache and shared memory

example

    // cache config function
        cudaFuncSetCacheConfig(Kernel,cudaFuncCachePreferL1);

    .....
      Kernel<<< grid, threads, 0 >>>;