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

/*
Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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THE SOFTWARE.
*/

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

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


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

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\n", __func__, _numElements);
    unsigned blocks = HipTest::setNumBlocks(blocksPerCU, threadsPerBlock, _numElements);
    hipLaunchKernel(HipTest::vectorADD, dim3(blocks), dim3(threadsPerBlock), 0, _stream, _A_d, _B_d, _C_d, _numElements);
    HIPCHECK(hipEventRecord(_event, _stream));
    HIPCHECK(hipStreamWaitEvent(_stream, _event, 0));

}




//---
//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, true);
    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);
    }

    for (int i=0; i<p_streams; i++) {
        streamers[i]->runAsync();
    }

    HIPCHECK(hipDeviceSynchronize());
}