void TestObserver( int M, int T, uintptr_t testMode ) {
    theStats.Reset();
    theGlobalBarrierActive = true;
    theTestMode = testMode;
    NativeParallelFor( M, TestBody(T) );
    // When T (number of threads in arena, i.e. master + workers) is less than P
    // (hardware concurrency), more than T-1 workers can visit the same arena. This 
    // is possible in case of imbalance or when other arenas are activated/deactivated
    // concurrently).
    ASSERT( !theNumObservers, "Unexpected alive observer(s)" );
    REMARK( "Entries %d / %d, exits %d\n", (int)theStats.m_entries, (int)theStats.m_workerEntries, (int)theStats.m_exits );
    if ( testMode & tmSynchronized ) {
        if ( testMode & tmLocalObservation ) {
            ASSERT( theStats.m_entries >= M * T, "Too few on_entry calls" );
            ASSERT( theStats.m_workerEntries >= M * (T - 1), "Too few worker entries" );
        }
        else {
            ASSERT( theStats.m_entries >= M * M * T, "Too few on_entry calls" );
            ASSERT( theStats.m_entries <= M * (P + 1), "Too many on_entry calls" );
            ASSERT( theStats.m_workerEntries >= M * M * (T - 1), "Too few worker entries" );
            ASSERT( theStats.m_workerEntries <= M * (P - 1), "Too many worker entries" );
        }
        ASSERT( theStats.m_entries == theStats.m_exits, "Entries/exits mismatch" );
    }
    else {
        ASSERT( theStats.m_entries >= M, "Too few on_entry calls" );
        ASSERT( theStats.m_exits >= M || (testMode & tmAutoinitialization), "Too few on_exit calls" );
        if ( !(testMode & tmLocalObservation) ) {
            ASSERT( theStats.m_entries <= M * M * P, "Too many on_entry calls" );
            ASSERT( theStats.m_exits <= M * M * T, "Too many on_exit calls" );
        }
        ASSERT( theStats.m_entries >= theStats.m_exits, "More exits than entries" );
    }
}
Exemplo n.º 2
0
        /// @param iterations Number of iterations to gather data for.
        /// @returns the number of nanoseconds the run took.
        uint64_t Run(std::size_t iterations)
        {
            std::size_t iteration = iterations;
            
            // Set up the testing fixture.
            SetUp();

            // Get the starting time.
            Clock::TimePoint startTime, endTime;

            startTime = Clock::Now();

            // Run the test body for each iteration.
            while (iteration--)
                TestBody();

            // Get the ending time.
            endTime = Clock::Now();

            // Tear down the testing fixture.
            TearDown();

            // Return the duration in nanoseconds.
            return Clock::Duration(startTime, endTime);
        }