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rocm-systems/projects/rocprofiler-systems/examples/rccl/rccl-tests/src/timer.cc
T
Pranjal Swarup 0497b7934f Update RCCL-tests in examples folder (#261)
- Create a local copy for ROCm/rccl-tests for our examples.
- Update argument parsing to no longer use getopt_long.
- Workaround for Dyninst instrumentation.

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Co-authored-by: David Galiffi <David.Galiffi@amd.com>

[ROCm/rocprofiler-systems commit: 4e5029221b]
2025-06-27 11:44:13 -04:00

36 linhas
687 B
C++

#include "timer.h"
// Make sure to compile this translation unit with the host compiler and not
// nvcc, lest you hit an internal compiler error (ICE) with GCC 10.3.0
#include <chrono>
namespace
{
std::uint64_t
now()
{
using clock = std::chrono::steady_clock;
return std::chrono::duration_cast<std::chrono::nanoseconds>(
clock::now().time_since_epoch())
.count();
}
} // namespace
timer::timer() { t0 = now(); }
double
timer::elapsed() const
{
std::uint64_t t1 = now();
return 1.e-9 * (t1 - t0);
}
double
timer::reset()
{
std::uint64_t t1 = now();
double ans = 1.e-9 * (t1 - t0);
t0 = t1;
return ans;
}