8000 avoid redundant event records and event blocks by taozhiwei · Pull Request #119359 · pytorch/pytorch · GitHub
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avoid redundant event records and event blocks #119359

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avoid redundant event records and event blocks #119359

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8 changes: 5 additions & 3 deletions aten/src/ATen/core/ivalue_inl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -947,9 +947,11 @@ struct C10_EXPORT ivalue::Future final : c10::intrusive_ptr_target {
currentDevice_ = impl_.getDevice();
storages_ = std::move(actualStorages);
for (const c10::Device& device : usedDevices) {
c10::Event event(impl_.type());
event.record(impl_.getStream(device));
events_.push_back(std::move(event));
if (impl_.getDevice() != device) {
c10::Event event(impl_.type());
event.record(impl_.getStream(device));
events_.push_back(std::move(event));
}
}

std::vector<FutureCallback> cbs;
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