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Optimize the finding of max workspace size. #41741

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Apr 14, 2022
Merged

Optimize the finding of max workspace size. #41741

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15 changes: 9 additions & 6 deletions paddle/fluid/operators/conv_cudnn_helper.h
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Original file line number Diff line number Diff line change
Expand Up @@ -276,11 +276,12 @@ struct SearchAlgorithm<cudnnConvolutionFwdAlgoPerf_t> {
args.handle, args.idesc.desc(), args.wdesc.desc(),
args.cdesc.desc(), args.odesc.desc(),
static_cast<cudnnConvolutionFwdAlgo_t>(algo), &workspace_size);
if (status == CUDNN_STATUS_SUCCESS) {
if (status == CUDNN_STATUS_SUCCESS &&
workspace_size <= workspace_size_limit) {
max_workspace_size = std::max(workspace_size, max_workspace_size);
}
}
return std::min(max_workspace_size, workspace_size_limit);
return max_workspace_size;
} else {
return workspace_size_limit;
}
Expand Down Expand Up @@ -425,11 +426,12 @@ struct SearchAlgorithm<cudnnConvolutionBwdDataAlgoPerf_t> {
args.cdesc.desc(), args.idesc.desc(),
static_cast<cudnnConvolutionBwdDataAlgo_t>(algo),
&workspace_size);
if (status == CUDNN_STATUS_SUCCESS) {
if (status == CUDNN_STATUS_SUCCESS &&
workspace_size <= workspace_size_limit) {
max_workspace_size = std::max(workspace_size, max_workspace_size);
}
}
return std::min(max_workspace_size, workspace_size_limit);
return max_workspace_size;
} else {
return workspace_size_limit;
}
Expand Down Expand Up @@ -588,11 +590,12 @@ struct SearchAlgorithm<cudnnConvolutionBwdFilterAlgoPerf_t> {
args.cdesc.desc(), args.wdesc.desc(),
static_cast<cudnnConvolutionBwdFilterAlgo_t>(algo),
&workspace_size);
if (status == CUDNN_STATUS_SUCCESS) {
if (status == CUDNN_STATUS_SUCCESS &&
workspace_size <= workspace_size_limit) {
max_workspace_size = std::max(workspace_size, max_workspace_size);
}
}
return std::min(max_workspace_size, workspace_size_limit);
return max_workspace_size;
} else {
return workspace_size_limit;
}
Expand Down