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### Description This adds Python hooks into PyTorch that allow the user to register their own callbacks for events such as tensor allocation, stream allocation, event record / wait etc. Pull Request resolved: https://github.com/pytorch/pytorch/pull/82824 Approved by: https://github.com/lw, https://github.com/ezyang, https://github.com/malfet
23 lines
468 B
C++
23 lines
468 B
C++
#include <mutex>
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#include <c10/core/impl/GPUTrace.h>
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#include <c10/util/CallOnce.h>
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namespace c10 {
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namespace impl {
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std::atomic<const PyInterpreter*> GPUTrace::gpuTraceState{nullptr};
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bool GPUTrace::haveState{false};
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void GPUTrace::set_trace(const PyInterpreter* trace) {
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static c10::once_flag flag;
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c10::call_once(flag, [&]() {
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gpuTraceState.store(trace, std::memory_order_release);
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haveState = true;
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});
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}
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} // namespace impl
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} // namespace c10
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