[Performance Optimization] Add fast md5sum #78602
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ForFishes wants to merge 3 commits intoPaddlePaddle:developfrom
Open
[Performance Optimization] Add fast md5sum #78602ForFishes wants to merge 3 commits intoPaddlePaddle:developfrom
ForFishes wants to merge 3 commits intoPaddlePaddle:developfrom
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sneaxiy
reviewed
Apr 8, 2026
paddle/utils/md5_gpu.cu
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| unsigned char h_result[16]; | ||
| cudaMemcpyAsync(h_result, d_result, 16, cudaMemcpyDeviceToHost, cuda_stream); | ||
| cudaStreamSynchronize(cuda_stream); | ||
| cudaFree(d_result); |
Collaborator
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Please add PADDLE_ENFORCE_GPU_SUCCESS check for all CUDA APIs.
| // Compute MD5 directly on GPU device memory. | ||
| // |data|: device pointer; |len|: byte count; |stream|: CUDA stream. | ||
| // Synchronizes stream before returning. Returns 32-char hex digest. | ||
| std::string md5_gpu(const void* data, size_t len, void* stream); |
Collaborator
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Can we implement md5_cpu so that we can use this API in other hardwares?
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PR Category
Performance Optimization
PR Types
New features
Description
[Distributed] Add fast md5sum
是否引起精度变化
否