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cuda : fix device sync on buffer clear #14033

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Merged
merged 1 commit into from
Jun 9, 2025
Merged

cuda : fix device sync on buffer clear #14033

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5 changes: 2 additions & 3 deletions ggml/src/ggml-cuda/ggml-cuda.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -615,9 +615,8 @@ static void ggml_backend_cuda_buffer_clear(ggml_backend_buffer_t buffer, uint8_t
ggml_backend_cuda_buffer_context * ctx = (ggml_backend_cuda_buffer_context *)buffer->context;

ggml_cuda_set_device(ctx->device);
CUDA_CHECK(cudaDeviceSynchronize());
CUDA_CHECK(cudaMemset(ctx->dev_ptr, value, buffer->size));
CUDA_CHECK(cudaDeviceSynchronize());
CUDA_CHECK(cudaMemsetAsync(ctx->dev_ptr, value, buffer->size, cudaStreamPerThread));
CUDA_CHECK(cudaStreamSynchronize(cudaStreamPerThread));
}

static const ggml_backend_buffer_i ggml_backend_cuda_buffer_interface = {
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