rocm-systems/catch/perftests/memory/hipPerfMemMallocCpyFree.cc

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/**
* @addtogroup hipMemcpy hipMemcpy
* @{
* @ingroup perfMemoryTest
* `hipMemcpy(void* dst, const void* src, size_t count, hipMemcpyKind kind)` -
* Copies data between host and device.
*/

#include <time.h>
#include <hip_test_common.hh>

#define NUM_SIZE 19   //  size up to 16M
#define NUM_ITER 500  //  Total GPU memory up to 16M*500=8G

void valSet(int* A, int val, size_t size) {
  size_t len = size / sizeof(int);
  for (int i = 0; i < len; i++) {
    A[i] = val;
  }
}

void setup(size_t *size, int *num, int **pA, const size_t totalGlobalMem) {
  for (int i = 0; i < *num; i++) {
    size[i] = 1 << (i + 6);
    if ((NUM_ITER + 1) * size[i] > totalGlobalMem) {
      *num = i;
      break;
    }
  }
  *pA = reinterpret_cast<int*>(malloc(size[*num - 1]));
  valSet(*pA, 1, size[*num - 1]);
}

void testInit(size_t size, int *A) {
  int *Ad;

  clock_t start = clock();
  HIP_CHECK(hipMalloc(&Ad, size));   //  hip::init() will be called
  clock_t end = clock();
  double uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
  INFO("Initial: hipMalloc(" << size << ") cost " << uS << "us" << "\n");

  start = clock();
  HIP_CHECK(hipMemcpy(Ad, A, size, hipMemcpyHostToDevice));
  HIP_CHECK(hipDeviceSynchronize());
  end = clock();
  uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
  INFO("hipMemcpy(" << size << ") cost " << uS << "us" << "\n");

  start = clock();
  HIP_CHECK(hipFree(Ad));
  end = clock();
  uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
  INFO("hipFree(" << size << ") cost " << uS << "us" << "\n");
}

static bool hipPerfMemMallocCpyFree_test() {
  double uS;
  clock_t start, end;
  size_t size[NUM_SIZE] = { 0 };
  int *Ad[NUM_ITER] = { nullptr };
  int *A;
  hipDeviceProp_t props;
  memset(&props, 0, sizeof(props));
  HIP_CHECK(hipGetDeviceProperties(&props, 0));
  INFO("totalGlobalMem: " << props.totalGlobalMem << "\n");

  int num = NUM_SIZE;
  setup(size, &num, &A, props.totalGlobalMem);
  testInit(size[0], A);

  for (int i = 0; i < num; i++) {
    start = clock();
    for (int j = 0; j < NUM_ITER; j++) {
        HIP_CHECK(hipMalloc(&Ad[j], size[i]));
    }
    end = clock();
    uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
    INFO("hipMalloc(" << size[i] << ") cost " << uS << "us" << "\n");

    start = clock();
    for (int j = 0; j < NUM_ITER; j++) {
        HIP_CHECK(hipMemcpy(Ad[j], A, size[i], hipMemcpyHostToDevice));
    }
    HIP_CHECK(hipDeviceSynchronize());
    end = clock();
    uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
    INFO("hipMemcpy(" << size[i] << ") cost " << uS << "us" << "\n");

    start = clock();
    for (int j = 0; j < NUM_ITER; j++) {
        HIP_CHECK(hipFree(Ad[j]));
        Ad[j] = nullptr;
    }
    end = clock();
    double uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
    INFO("hipFree(" << size[i] << ") cost " << uS << "us" << "\n");
  }
  free(A);
  return true;
}

/**
* Test Description
* ------------------------
*  - Verify hipPerfMemMallocCpyFree status.
* Test source
* ------------------------
*  - perftests/memory/hipPerfMemMallocCpyFree.cc
* Test requirements
* ------------------------
*  - HIP_VERSION >= 5.6
*/

TEST_CASE("Perf_hipPerfMemMallocCpyFree_test") {
  int numDevices = 0;
  HIP_CHECK(hipGetDeviceCount(&numDevices));

  if (numDevices <= 0) {
    SUCCEED("Skipped testcase hipPerfDevMemReadSpeed as"
            "there is no device to test.");
  } else {
    REQUIRE(true == hipPerfMemMallocCpyFree_test());
  }
}