rocm-systems/catch/perftests/dispatch/hipPerfDispatchSpeed.cc

/*
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 Permission is hereby granted, free of charge, to any person obtaining a copy
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 THE SOFTWARE.
 */

/**
* @addtogroup hipPerfDispatchSpeed hipPerfDispatchSpeed
* @{
* @ingroup perfDispatchTest
*/

#include <hip_test_common.hh>
#include <string.h>
#include <complex>

// Quiet pesky warnings
#ifdef WIN_OS
#define SNPRINTF sprintf_s
#else
#define SNPRINTF snprintf
#endif
#define CHAR_BUF_SIZE 512

typedef struct {
    unsigned int iterations;
    int flushEvery;
} testStruct;

testStruct testList[] = {
    { 1, -1},
    { 1, -1},
    { 10, 1},
    { 10, -1},
    { 100, 1},
    { 100, 10},
    { 100, -1},
    { 1000, 1},
    { 1000, 10},
    { 1000, 100},
    { 1000, -1},
    { 10000, 1},
    { 10000, 10},
    { 10000, 100},
    { 10000, 1000},
    { 10000, -1},
    { 100000, 1},
    { 100000, 10},
    { 100000, 100},
    { 100000, 1000},
    { 100000, 10000},
    { 100000, -1},
};

unsigned int mapTestList[] = {1, 1, 10, 100, 1000, 10000, 100000};

__global__ void _dispatchSpeed(float *outBuf) {
  int i = (blockIdx.x * blockDim.x + threadIdx.x);
  if (i < 0)
    outBuf[i] = 0.0f;
};

/**
* Test Description
* ------------------------
*  - Verify the hipPerf Dispatch speed.
* Test source
* ------------------------
*  - perftests/compute/hipPerfMandelbrot.cc
* Test requirements
* ------------------------
*  - HIP_VERSION >= 5.6
*/

TEST_CASE("Perf_hipPerfDispatchSpeed") {
  int p_gpuDevice = 0;
  int p_tests = -1;
  hipError_t err = hipSuccess;
  hipDeviceProp_t props = {0};
  HIP_CHECK(hipGetDeviceProperties(&props, p_gpuDevice));

  unsigned int testListSize = sizeof(testList) / sizeof(testStruct);
  int numTests = (p_tests == -1) ? (2*2*testListSize - 1) : p_tests;
  int test = (p_tests == -1) ? 0 : p_tests;

  float* srcBuffer = NULL;
  unsigned int bufSize_ = 64*sizeof(float);
  err = hipMalloc(&srcBuffer, bufSize_);
  REQUIRE(err == hipSuccess);

  for (; test <= numTests; test++) {
    int openTest = test % testListSize;
    bool sleep = false;
    bool doWarmup = false;

    if ((test / testListSize) % 2) {
        doWarmup = true;
    }
    if (test >= (testListSize * 2)) {
        sleep = true;
    }
    int threads = (bufSize_ / sizeof(float));
    int threads_per_block  = 64;
    int blocks = (threads/threads_per_block) + (threads % threads_per_block);
    hipEvent_t start, stop;

    // NULL stream check:
    err = hipEventCreate(&start);
    REQUIRE(err == hipSuccess);
    err = hipEventCreate(&stop);
    REQUIRE(err == hipSuccess);

    if (doWarmup) {
      hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks), dim3(threads_per_block),
                          0, hipStream_t(0), srcBuffer);
      err = hipDeviceSynchronize();
      REQUIRE(err == hipSuccess);
      }
      auto Start = std::chrono::high_resolution_clock::now();
      for (unsigned int i = 0; i < testList[openTest].iterations; i++) {
        HIP_CHECK(hipEventRecord(start, NULL));
        hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks),
                        dim3(threads_per_block), 0, hipStream_t(0), srcBuffer);
        HIP_CHECK(hipEventRecord(stop, NULL));
        if ((testList[openTest].flushEvery > 0) &&
          (((i + 1) % testList[openTest].flushEvery) == 0)) {
            if (sleep) {
              err = hipDeviceSynchronize();
              REQUIRE(err == hipSuccess);
            } else {
              do {
                err = hipEventQuery(stop);
            } while (err == hipErrorNotReady);
          }
        }
      }
      if (sleep) {
        err = hipDeviceSynchronize();
        REQUIRE(err == hipSuccess);
      } else {
        do {
          err = hipEventQuery(stop);
        } while (err == hipErrorNotReady);
      }
      auto Stop = std::chrono::high_resolution_clock::now();
      HIP_CHECK(hipEventDestroy(start));
      HIP_CHECK(hipEventDestroy(stop));
      double sec = std::chrono::duration<double, std::milli>(Stop - Start).count();

      // microseconds per launch
      double perf = (1000000.f*sec/testList[openTest].iterations);
      const char *waitType;
      const char *extraChar;
      const char *n;
      const char *warmup;
      if (sleep) {
        waitType = "sleep";
        extraChar = "";
        n = "";
      } else {
        waitType = "spin";
        n = "n";
        extraChar = " ";
      }
      if (doWarmup) {
        warmup = "warmup";
      } else {
        warmup = "";
      }
      char buf[256];
      if (testList[openTest].flushEvery > 0) {
        SNPRINTF(buf, sizeof(buf), "HIPPerfDispatchSpeed[%3d] %7d dispatches %s%sing every %5d %6s (us/disp) %3f",
                 test, testList[openTest].iterations,
                 waitType, n, testList[openTest].flushEvery, warmup, (float)perf);
      } else {
        SNPRINTF(buf, sizeof(buf), "HIPPerfDispatchSpeed[%3d] %7d dispatches (%s%s)              %6s (us/disp) %3f",
                 test, testList[openTest].iterations,
                 waitType, extraChar, warmup, (float)perf);
      }
      printf("%s\n", buf);
  }
  HIP_CHECK(hipFree(srcBuffer));
}

/**
* End doxygen group perfDispatchTest.
* @}
*/