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cuda : fix data race in soft max (#5853)

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slaren 2024-03-03 14:26:18 +01:00 • committed by GitHub
parent 231ae28f07
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ggml-cuda.cu
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@ -6904,6 +6904,7 @@ static __global__ void soft_max_f32(const float * x, const float * mask, const f
// find the sum of exps in the block // find the sum of exps in the block
tmp = warp_reduce_sum(tmp); tmp = warp_reduce_sum(tmp);
if (block_size > WARP_SIZE) { if (block_size > WARP_SIZE) {
__syncthreads();
if (warp_id == 0) { if (warp_id == 0) {
buf_iw[lane_id] = 0.0f; buf_iw[lane_id] = 0.0f;
} }