mirror of
https://github.com/zebrajr/pytorch.git
synced 2025-12-07 12:21:27 +01:00
8177f63c91
Summary: This PR aims to reduce the import overhead and symbol noises from the `windows.h` headers. Pull Request resolved: https://github.com/pytorch/pytorch/pull/48009 Reviewed By: gchanan Differential Revision: D25045840 Pulled By: ezyang fbshipit-source-id: 01fda70f433ba2dd0cd2d7cd676ab6ffe9d98b90
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
#include <torch/csrc/jit/codegen/cuda/instrumentation.h>
|
|
|
|
#include <torch/csrc/WindowsTorchApiMacro.h>
|
|
|
|
#ifdef _WIN32
|
|
#include <c10/util/win32-headers.h>
|
|
#else
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
namespace torch {
|
|
namespace jit {
|
|
namespace fuser {
|
|
namespace cuda {
|
|
namespace inst {
|
|
|
|
Trace::Trace() {
|
|
const char* trace_filename = getenv("PYTORCH_CUDA_FUSER_TRACE");
|
|
if (trace_filename != nullptr) {
|
|
log_file_ = fopen(trace_filename, "w");
|
|
TORCH_CHECK(log_file_ != nullptr, "Can't open trace file");
|
|
|
|
// Disable the file stream buffering, since it may result
|
|
// in torn writes in multi-threaded tracing
|
|
setbuf(log_file_, nullptr);
|
|
|
|
// Print the trace prologue
|
|
// (including a dummy TRACE_START event)
|
|
fprintf(log_file_, "{\n\"traceEvents\": [\n");
|
|
start_timestamp_ = Clock::now();
|
|
logEvent('I', "TRACE_START");
|
|
}
|
|
}
|
|
|
|
Trace::~Trace() {
|
|
if (log_file_ != nullptr) {
|
|
// Print trace epilogue
|
|
logEvent('I', "TRACE_END", ' ');
|
|
fprintf(log_file_, "],\n\"displayTimeUnit\": \"ms\"\n}\n");
|
|
fclose(log_file_);
|
|
}
|
|
}
|
|
|
|
void Trace::logEvent(char ph, const char* name, char sep) {
|
|
const std::chrono::duration<double> d = Clock::now() - start_timestamp_;
|
|
const double elapsed = d.count() * 1e6;
|
|
|
|
#ifdef _WIN32
|
|
const unsigned int pid = GetCurrentProcessId();
|
|
const unsigned int tid = GetCurrentThreadId();
|
|
#else
|
|
const unsigned int pid = getpid();
|
|
const unsigned int tid = std::hash<pthread_t>{}(pthread_self());
|
|
#endif // _WIN32
|
|
|
|
fprintf(
|
|
log_file_,
|
|
"{ \"name\": \"%s\", \"ph\": \"%c\", \"pid\": %u, \"tid\": %u, \"ts\": %.0f }%c\n",
|
|
name,
|
|
ph,
|
|
pid,
|
|
tid,
|
|
elapsed,
|
|
sep);
|
|
}
|
|
|
|
} // namespace inst
|
|
} // namespace cuda
|
|
} // namespace fuser
|
|
} // namespace jit
|
|
} // namespace torch
|