Method clblasPerfSingle

src/tests/performance/perf-asum.cpp:208–264

template <typename ElemType> nano_time_t
AsumPerformanceTest<ElemType>::clblasPerfSingle(void)
{
    nano_time_t time;
    cl_event event;
    cl_int status;
    cl_command_queue queue = base_->commandQueues()[0];

    DataType type;
    type = ( typeid(ElemType) == typeid(float))? TYPE_FLOAT:( typeid(ElemType) == typeid(double))? TYPE_DOUBLE:
										( typeid(ElemType) == typeid(FloatComplex))? TYPE_COMPLEX_FLOAT: TYPE_COMPLEX_DOUBLE;

    event = NULL;
    clFinish( queue);
    time = getCurrentTime();

#define TIMING
#ifdef TIMING
    int iter = 100;
    for ( int i=1; i <= iter; i++)
    {
#endif

        status = (cl_int)clMath::clblas::asum( type, params_.N, mobjAsum_, params_.offa, mobjX_, params_.offBX, params_.incx,
                             scratchBuff, 1, &queue, 0, NULL, &event);
        if (status != CL_SUCCESS) {
            cerr << "The CLBLAS ASUM function failed, status = " <<
                    status << endl;

            return NANOTIME_ERR;
        }
#ifdef TIMING
    } // iter loop
    clFinish( queue);
    time = getCurrentTime() - time;
    time /= iter;
#else

    status = flushAll(1, &queue);
    if (status != CL_SUCCESS) {
        cerr << "clFlush() failed, status = " << status << endl;
        return NANOTIME_ERR;
    }

    time = getCurrentTime();
    status = waitForSuccessfulFinish(1, &queue, &event);
    if (status == CL_SUCCESS) {
        time = getCurrentTime() - time;
    }
    else {
        cerr << "Waiting for completion of commands to the queue failed, "
                "status = " << status << endl;
        time = NANOTIME_ERR;
    }
#endif
    return time;
}