rocm-systems/catch/perftests/stream/hipPerfStreamCreateCopyDestroy.cc

/*
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 */

/**
* @addtogroup hipPerfStreamCreateCopyDestroy hipPerfStreamCreateCopyDestroy
* @{
* @ingroup perfStreamTest
* `hipError_t hipStreamCreate(hipStream_t* stream)` -
* Create an asynchronous stream.
*/

#include <hip_test_kernels.hh>
#include <hip_test_checkers.hh>
#include <hip_test_common.hh>

using namespace std;

#define BufSize 0x1000
#define Iterations 0x100
#define TotalStreams 4
#define TotalBufs 4


class hipPerfStreamCreateCopyDestroy {
 private:
    unsigned int numBuffers_;
    unsigned int numStreams_;
    const size_t totalStreams_[TotalStreams];
    const size_t totalBuffers_[TotalBufs];
 public:
    hipPerfStreamCreateCopyDestroy() : numBuffers_(0), numStreams_(0),
                                       totalStreams_{1, 2, 4, 8},
                                       totalBuffers_{1, 100, 1000, 5000} {};
    ~hipPerfStreamCreateCopyDestroy() {};
    bool open(int deviceID);
    bool run(unsigned int testNumber);
};

bool hipPerfStreamCreateCopyDestroy::open(int deviceId) {
  int nGpu = 0;
  HIP_CHECK(hipGetDeviceCount(&nGpu));
  if (nGpu < 1) {
    HipTest::HIP_SKIP_TEST("Skipping because devices < 1");
  }
  HIP_CHECK(hipSetDevice(deviceId));
  hipDeviceProp_t props = {0};
  HIP_CHECK(hipGetDeviceProperties(&props, deviceId));
  std::cout << "info: running on bus " << "0x" << props.pciBusID
  << " " << props.name << " with " << props.multiProcessorCount << " CUs"
  << " and device id: " << deviceId  << std::endl;
  return true;
}

bool hipPerfStreamCreateCopyDestroy::run(unsigned int testNumber) {
  numStreams_ = totalStreams_[testNumber % TotalStreams];
  size_t iter = Iterations / (numStreams_ * (static_cast<size_t>(1)
                 << (testNumber / TotalBufs + 1)));
  hipStream_t streams[numStreams_];

  numBuffers_ = totalBuffers_[testNumber / TotalBufs];
  float* dSrc[numBuffers_];
  size_t nBytes = BufSize * sizeof(float);

  for (size_t b = 0; b < numBuffers_; ++b) {
    HIP_CHECK(hipMalloc(&dSrc[b], nBytes));
  }

  float* hSrc;
  hSrc = new float[nBytes];
  HIP_CHECK(hSrc == 0 ? hipErrorOutOfMemory : hipSuccess);
  for (size_t i = 0; i < BufSize; i++) {
    hSrc[i] = 1.618f + i;
  }

  auto start = std::chrono::steady_clock::now();

  for (size_t i = 0; i < iter; ++i) {
    for (size_t s = 0; s < numStreams_; ++s) {
      HIP_CHECK(hipStreamCreate(&streams[s]));
    }

    for (size_t s = 0; s < numStreams_; ++s) {
      for (size_t b = 0; b < numBuffers_; ++b) {
        HIP_CHECK(hipMemcpyWithStream(dSrc[b], hSrc, nBytes,
                  hipMemcpyHostToDevice, streams[s]));
      }
    }

    for (size_t s = 0; s < numStreams_; ++s) {
      HIP_CHECK(hipStreamDestroy(streams[s]));
    }
  }

  auto end = std::chrono::steady_clock::now();
  std::chrono::duration<double> diff = end - start;

  auto time = static_cast<float>(diff.count() * 1000 / (iter * numStreams_));

  cout << "Create+Copy+Destroy time for " << numStreams_ << " streams and "
       << setw(4) << numBuffers_ << " buffers " << " and " << setw(4)
       << iter << " iterations " << time << " (ms) " << endl;

  delete [] hSrc;
  for (size_t b = 0; b < numBuffers_; ++b) {
    HIP_CHECK(hipFree(dSrc[b]));
  }
  return true;
}

/**
* Test Description
* ------------------------
*  - Verify the Create+Copy+Destroy time for different stream.
* Test source
* ------------------------
*  - perftests/stream/hipPerfDeviceConcurrency.cc
* Test requirements
* ------------------------
*  - HIP_VERSION >= 5.6
*/

TEST_CASE("Perf_hipPerfStreamCreateCopyDestroy") {
  hipPerfStreamCreateCopyDestroy streamCCD;
  int deviceId = 0;
  REQUIRE(true == streamCCD.open(deviceId));

  for (auto testCase = 0; testCase < TotalStreams * TotalBufs; testCase++) {
    REQUIRE(true == streamCCD.run(testCase));
  }
}