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CUDA: fix race condition in MMQ stream-k fixup (#13299)

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Johannes Gäßler 2025-05-04 14:16:39 +02:00 • committed by GitHub
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ggml/src/ggml-cuda/mmq.cuh
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@ -2958,6 +2958,7 @@ static __global__ void mul_mat_q_stream_k_fixup(
for (int j = threadIdx.y*WARP_SIZE + threadIdx.x; j < mmq_x; j += nwarps*WARP_SIZE) { for (int j = threadIdx.y*WARP_SIZE + threadIdx.x; j < mmq_x; j += nwarps*WARP_SIZE) {
ids_dst_shared[j] = ids_dst[col_low + j]; ids_dst_shared[j] = ids_dst[col_low + j];
} }
__syncthreads();
const int offset_dst = it*mmq_y; const int offset_dst = it*mmq_y;
dst += offset_dst; dst += offset_dst;