test_Event.cpp

Go to the documentation of this file.

#include "gtest/gtest.h"
 
#include "Kokkos_Core.hpp"
 
#include "kokkos-utils/timer/Duration.hpp"
#include "kokkos-utils/timer/Event.hpp"

 
using execution_space = Kokkos::DefaultExecutionSpace;
 
namespace Kokkos::utils::tests::timer
{
 
using namespace Kokkos::utils::timer;
 
using event_t = Event<execution_space>;

TEST(Event, impl_event_type)
{
    using expt_impl_event_t =
#if defined(KOKKOS_ENABLE_CUDA)
    cudaEvent_t;
#elif defined(KOKKOS_ENABLE_HIP)
    hipEvent_t;
#else
    std::chrono::steady_clock::time_point;
#endif
 
    static_assert(std::same_as<typename event_t::impl_event_t, expt_impl_event_t>);
}

TEST(Event, duration_instances)
{
    static_assert(std::same_as<typename std::chrono::microseconds::period, std::ratio<1, 1000000>>);
    static_assert(std::same_as<typename              microseconds::period, std::ratio<1, 1000000>>);
    static_assert(std::same_as<typename              microseconds::rep,    double>);
 
    static_assert(std::same_as<typename std::chrono::milliseconds::period, std::ratio<1, 1000>>);
    static_assert(std::same_as<typename              milliseconds::period, std::ratio<1, 1000>>);
    static_assert(std::same_as<typename              milliseconds::rep,    double>);
 
    static_assert(std::same_as<typename std::chrono::seconds::period, std::ratio<1, 1>>);
    static_assert(std::same_as<typename              seconds::period, std::ratio<1, 1>>);
    static_assert(std::same_as<typename              seconds::rep,    double>);
}

TEST(Event, duration)
{
    const execution_space exec {};
 
    event_t begin, end;
 
    begin.record(exec);
 
    end.record(exec);
 
    ASSERT_GE(begin.duration<milliseconds>(end).count(), 0.);
}
 
} // namespace Kokkos::utils::tests::timer