rocm-systems/tests/src/runtimeApi/stream/hipStreamWaitEvent.cpp

/*
Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
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*/

/* HIT_START
 * BUILD: %t %s ../../test_common.cpp
 * RUN: %t
 * HIT_END
 */

// Test under-development.  Calls async mem-copy API, experiment with functionality.

#include "hip_runtime.h"
#include "test_common.h"
#include <vector>
unsigned p_streams = 6;


//------
// Structure for one stream;
template <typename T>
class Streamer {
public:
    Streamer(size_t numElements);
    ~Streamer();
    void runAsync();
    void queryUntilComplete();


private:
    T *_A_h;
    T *_B_h;
    T *_C_h;

    T *_A_d;
    T *_B_d;
    T *_C_d;

    hipStream_t _stream;
    hipEvent_t  _event;

    size_t      _numElements;
};

template <typename T>
Streamer<T>::Streamer(size_t numElements) :
    _numElements(numElements)
{
    HipTest::initArrays (&_A_d, &_B_d, &_C_d, &_A_h, &_B_h, &_C_h, numElements, true);

    HIPCHECK(hipStreamCreate(&_stream));
    HIPCHECK(hipEventCreate(&_event));
};

template <typename T>
void Streamer<T>::runAsync()
{
    printf ("testing: %s  numElements=%zu size=%6.2fMB\n", __func__, _numElements, _numElements * sizeof(T) / 1024.0/1024.0);
    unsigned blocks = HipTest::setNumBlocks(blocksPerCU, threadsPerBlock, _numElements);
    hipLaunchKernel(HipTest::vectorADD, dim3(blocks), dim3(threadsPerBlock), 0, _stream, _A_d, _B_d, _C_d, _numElements);

    // Test case where hipStreamWaitEvent waits on same event we just placed into the queue.
    HIPCHECK(hipEventRecord(_event, _stream));
    HIPCHECK(hipStreamWaitEvent(_stream, _event, 0));
}

template <typename T>
void Streamer<T>::queryUntilComplete()
{
    int numQueries = 0;
    hipError_t e = hipSuccess;
    do {
        numQueries++;
        e = hipStreamQuery(_stream);
    } while (e != hipSuccess) ;

    printf ("completed after %d queries\n", numQueries);
};



//---
//Parse arguments specific to this test.
void parseMyArguments(int argc, char *argv[])
{
    int more_argc = HipTest::parseStandardArguments(argc, argv, false);

    // parse args for this test:
    for (int i = 1; i < more_argc; i++) {
        const char *arg = argv[i];

        if (!strcmp(arg, "--streams")) {
            if (++i >= argc || !HipTest::parseUInt(argv[i], &p_streams)) {
               failed("Bad streams argument");
            }
        } else {
            failed("Bad argument '%s'", arg);
        }
    };
};



//---
int main(int argc, char *argv[])
{
    HipTest::parseStandardArguments(argc, argv, false);
    parseMyArguments(argc, argv);

    typedef Streamer<float> FloatStreamer;

    std::vector<FloatStreamer *> streamers;

    size_t numElements = N;

    for (int i=0; i<p_streams; i++) {
        FloatStreamer * s = new FloatStreamer(numElements);
        streamers.push_back(s);
    }

    if (p_tests & 0x1) {
        printf ("==> Test 0x1 runAsnc\n");
        for (int i=0; i<p_streams; i++) {
            streamers[i]->runAsync();
        }
        HIPCHECK(hipDeviceSynchronize());
    }

    if (p_tests & 0x2) {
        printf ("==> Test 0x2 queryUntilComplete\n");
        for (int i=0; i<p_streams; i++) {
            streamers[i]->runAsync();
            streamers[i]->queryUntilComplete();
        }
        HIPCHECK(hipDeviceSynchronize());
    }

    if (p_tests & 0x4) {
        hipStreamQuery(0/* try null stream*/);

    }


    passed();
}