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cuda source #1
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10.0.0 sm_75 CUDA-10.2
10.0.1 sm_75 CUDA-10.2
11.0.0 sm_75 CUDA-10.2
16.0.0 sm_90 CUDA-11.8
NVCC 10.0.130
NVCC 10.1.105
NVCC 10.1.168
NVCC 10.1.243
NVCC 10.2.89
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NVRTC 12.0.0
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NVRTC 12.1.0
clang 7.0.0 sm_70 CUDA-9.1
clang 8.0.0 sm_75 CUDA-10.0
clang 9.0.0 sm_75 CUDA-10.1
clang rocm-4.5.2
clang rocm-5.0.2
clang rocm-5.1.3
clang rocm-5.2.3
clang rocm-5.3.2
clang rocm-5.7.0
clang rocm-6.0.2
clang rocm-6.1.2
clang staging rocm-6.1.2
clang trunk rocm-6.1.2
trunk sm_90 CUDA-12.6.1
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Source code
#include <cuda_fp16.h> #include <assert.h> __global__ void tileMemcpy( half* src, half* dst, const unsigned int src_stride, const unsigned int tile_rows, const unsigned int tile_cols ) { // flatten out 2d grid of threads into in order of increasing threadIdx.x const unsigned int thread_idx = threadIdx.y * blockDim.x + threadIdx.x; const unsigned int num_threads = blockDim.x * blockDim.y; // # of threads is multiple of # of columns in the tile assert(num_threads % tile_cols == 0); // assign each thread a row/column in the tile, calculate the column step const unsigned int row_step = num_threads / tile_cols; const unsigned int thread_row = thread_idx / tile_cols; const unsigned int thread_col = thread_idx % tile_cols; for (unsigned int r = thread_row; r < tile_rows; r+=row_step) { dst[r * tile_cols + thread_col] = src[r * src_stride + thread_col]; } }
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