rocm-systems/perftests/memory/hipPerfMemFill.cpp

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

#include "test_common.h"
#include <printf/printf_common.h>
#include <iostream>
#include <chrono>
#include <sys/time.h>

#define SIMPLY_ASSIGN 0
#define USE_HIPTEST_SETNUMBLOCKS 0

using namespace std;

template<class T>
__global__ void vec_fill(T *x, T coef, int N) {
  const int istart = threadIdx.x + blockIdx.x * blockDim.x;
  const int ishift = blockDim.x * gridDim.x;
  for (int i = istart; i < N; i += ishift) {
#if SIMPLY_ASSIGN
    x[i] = coef;
#else
    x[i] = coef * i;
#endif
  }
}

__device__ void print_log(int i, double value, double expected) {
  printf("failed at %d: val=%g, expected=%g\n", i, value, expected);
}

__device__ void print_log(int i, int value, int expected) {
  printf("failed at %d: val=%d, expected=%d\n", i, value, expected);
}

template<class T>
__global__ void vec_verify(T *x, T coef, int N) {
  const int istart = threadIdx.x + blockIdx.x * blockDim.x;
  const int ishift = blockDim.x * gridDim.x;
  for (int i = istart; i < N; i += ishift) {
#if SIMPLY_ASSIGN
    if(x[i] != coef) {
      print_log(i, x[i], coef);
    }
#else
    if(x[i] != coef * i) {
      print_log(i, x[i], coef * i);
    }
#endif
  }
}

template<class T>
__global__ void daxpy(T *__restrict__ x, T *__restrict__ y,
    const T coef, int Niter, int N) {
  const int istart = threadIdx.x + blockIdx.x * blockDim.x;
  const int ishift = blockDim.x * gridDim.x;
  for (int iter = 0; iter < Niter; ++iter) {
    T iv = coef * iter;
    for (int i = istart; i < N; i += ishift)
    y[i] = iv * x[i] + y[i];
  }
}

template<class T>
class hipPerfMemFill {
 private:
  static constexpr int NUM_START = 27;
  static constexpr int NUM_SIZE = 5;
  static constexpr int NUM_ITER = 10;
  size_t totalSizes_[NUM_SIZE];
  hipDeviceProp_t props_;
  const T coef_ = getCoefficient(3.14159);
  const unsigned int blocksPerCU_;
  const unsigned int threadsPerBlock_;

 public:
  hipPerfMemFill(unsigned int blocksPerCU, unsigned int threadsPerBlock) :
    blocksPerCU_(blocksPerCU), threadsPerBlock_(threadsPerBlock) {
    for (int i = 0; i < NUM_SIZE; i++) {
      totalSizes_[i] = 1ull << (i + NUM_START); // 128M, 256M, 512M, 1024M, 2048M
    }
  }

  ~hipPerfMemFill() {
  }

  bool supportLargeBar() {
    return props_.isLargeBar != 0;
  }

  bool supportManagedMemory() {
    return props_.managedMemory != 0;
  }

  const T getCoefficient(double val) {
    return static_cast<T>(val);
  }

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

  void open(int deviceId) {
    int nGpu = 0;
    HIPCHECK(hipGetDeviceCount(&nGpu));
    if (nGpu < 1) {
      failed("No GPU!");
    } else if (deviceId >= nGpu) {
      failed("Info: wrong GPU Id %d\n", deviceId);
    }

    HIPCHECK(hipSetDevice(deviceId));
    memset(&props_, 0, sizeof(props_));
    HIPCHECK(hipGetDeviceProperties(&props_, deviceId));
    std::cout << "Info: running on device: id: " << deviceId << ", bus: 0x"
        << props_.pciBusID << " " << props_.name << " with "
        << props_.multiProcessorCount << " CUs, large bar: "
        << supportLargeBar() << ", managed memory: " << supportManagedMemory()
        << ", DeviceMallocFinegrained: " << supportDeviceMallocFinegrained()
        << std::endl;
  }

  void log_host(const char* title, double GBytes, double sec) {
    cout << title << " [" << setw(7) << GBytes << " GB]: cost " << setw(10) << sec
        << " s in bandwidth " << setw(10) << GBytes / sec << " [GB/s]" << endl;
  }

  void log_kernel(const char* title, double GBytes, double sec, double sec_hv, double sec_kv) {
    cout << title << " [" << setw(7) << GBytes << " GB]: cost " << setw(10) << sec
        << " s in bandwidth " << setw(10) << GBytes / sec << " [GB/s]" << ", hostVerify cost "
        << setw(10) << sec_hv << " s in bandwidth " << setw(10) << GBytes / sec_hv << " [GB/s]"
        << ", kernelVerify cost "<< setw(10) << sec_kv << " s in bandwidth " << setw(10)
        << GBytes / sec_kv << " [GB/s]" << endl;
  }

  void hostFill(size_t size, T *data, T coef, double &sec) {
    size_t num = size / sizeof(T);  // Size of elements
    auto start = chrono::steady_clock::now();
    for (int i = 0; i < num; ++i) {
#if SIMPLY_ASSIGN
      data[i] = coef;
#else
      data[i] = coef * i;
#endif
    }
    auto end = chrono::steady_clock::now();
    chrono::duration<double> diff = end - start;  // in second
    sec = diff.count();
  }

  void kernelFill(size_t size, T *data, T coef, double &sec) {
    size_t num = size / sizeof(T);  // Size of elements
    unsigned blocks = setNumBlocks(num);

    hipLaunchKernelGGL(HIP_KERNEL_NAME(vec_fill<T>), dim3(blocks),
                           dim3(threadsPerBlock), 0, 0, data, 0, num);  // kernel will be loaded first time
    HIPCHECK(hipDeviceSynchronize());

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

    for (int iter = 0; iter < NUM_ITER; ++iter) {
      hipLaunchKernelGGL(HIP_KERNEL_NAME(vec_fill<T>), dim3(blocks),
                             dim3(threadsPerBlock), 0, 0, data, coef, num);
    }
    HIPCHECK(hipDeviceSynchronize());

    auto end = chrono::steady_clock::now();
    chrono::duration<double> diff = end - start;  // in second
    sec = diff.count() / NUM_ITER;  // in second
  }

  void hostVerify(size_t size, T *data, T coef, double &sec) {
    size_t num = size / sizeof(T);  // Size of elements
    auto start = chrono::steady_clock::now();
    for (int i = 0; i < num; ++i) {
#if SIMPLY_ASSIGN
      if(data[i] != coef) {
        cout << "hostVerify failed: i=" << i << ", data[i]=" << data[i] << ", expected=" << coef << endl;
        failed("failed\n");
      }
#else
      if(data[i] != coef * i) {
        cout << "hostVerify failed: i=" << i << ", data[i]=" << data[i] << ", expected=" << coef * i << endl;
        failed("failed\n");
      }
#endif
    }
    auto end = chrono::steady_clock::now();
    chrono::duration<double> diff = end - start;  // in second
    sec = diff.count();
  }

  void kernelVerify(size_t size, T *data, T coef, double &sec) {
    size_t num = size / sizeof(T);  // Size of elements
    unsigned blocks = setNumBlocks(num);

    CaptureStream *capture = new CaptureStream(stdout);
    capture->Begin();

    hipLaunchKernelGGL(HIP_KERNEL_NAME(vec_verify<T>), dim3(blocks),
                       dim3(threadsPerBlock), 0, 0, data, coef, num);  // kernel will be loaded first time
    HIPCHECK(hipDeviceSynchronize());

    capture->End();
    capture->Truncate(1000); // Don't want too long log if existing
    std::string device_output = capture->getData();
    delete capture;
    if (device_output.length() > 0) {
      failed("kernelVerify failed:\n%s\n", device_output.c_str());
    }

    // Now all data verified. The following is to test bandwidth.
    auto start = chrono::steady_clock::now();

    for (int iter = 0; iter < NUM_ITER; ++iter) {
      hipLaunchKernelGGL(HIP_KERNEL_NAME(vec_verify<T>), dim3(blocks),
                             dim3(threadsPerBlock), 0, 0, data, coef, num);
    }
    HIPCHECK(hipDeviceSynchronize());

    auto end = chrono::steady_clock::now();
    chrono::duration<double> diff = end - start;  // in second
    sec = diff.count() / NUM_ITER;  // in second
  }

  bool testLargeBarDeviceMemoryHostFill(size_t size) {
    if (!supportLargeBar()) {
      return false;
    }

    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A;
    HIPCHECK(hipMalloc(&A, size));
    double sec = 0;
    hostFill(size, A, coef_, sec);  // Cpu can access device mem in LB
    HIPCHECK(hipFree(A));

    log_host("Largebar: host   fill", GBytes, sec);
    return true;
  }

  bool testLargeBar() {
    if (!supportLargeBar()) {
      return false;
    }

    cout << "Test large bar device memory host filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testLargeBarDeviceMemoryHostFill(totalSizes_[i])) {
        return false;
      }
    }

    return true;
  }

  bool testManagedMemoryHostFill(size_t size) {
    if (!supportManagedMemory()) {
      return false;
    }
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A;
    HIPCHECK(hipMallocManaged(&A, size));
    double sec = 0;
    hostFill(size, A, coef_, sec);  // Cpu can access HMM mem
    HIPCHECK(hipFree(A));

    log_host("Managed: host   fill", GBytes, sec);
    return true;
  }

  bool testManagedMemoryKernelFill(size_t size) {
    if (!supportManagedMemory()) {
      return false;
    }
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A;
    HIPCHECK(hipMallocManaged(&A, size));

    double sec = 0, sec_hv = 0, sec_kv = 0;
    kernelFill(size, A, coef_, sec);
    hostVerify(size, A, coef_, sec_hv);  // Managed memory can be verified by host
    kernelVerify(size, A, coef_, sec_kv);
    HIPCHECK(hipFree(A));

    log_kernel("Managed: kernel fill", GBytes, sec, sec_hv, sec_kv);

    return true;
  }

  bool testManagedMemory() {
    if (!supportManagedMemory()) {
      return false;
    }

    cout << "Test managed memory host filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testManagedMemoryHostFill(totalSizes_[i])) {
        return false;
      }
    }

    cout << "Test managed memory kernel filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testManagedMemoryKernelFill(totalSizes_[i])) {
        return false;
      }
    }

    return true;
  }

  bool testHostMemoryHostFill(size_t size, unsigned int flags) {
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);
    T *A;
    HIPCHECK(hipHostMalloc(&A, size, flags));
    double sec = 0;
    hostFill(size, A, coef_, sec);
    HIPCHECK(hipHostFree(A));

    log_host("Host: host   fill", GBytes, sec);
    return true;
  }

  bool testHostMemoryKernelFill(size_t size, unsigned int flags) {
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A;
    HIPCHECK(hipHostMalloc((void** ) &A, size, flags));
    double sec = 0, sec_hv = 0, sec_kv = 0;
    kernelFill(size, A, coef_, sec);
    hostVerify(size, A, coef_, sec_hv);
    kernelVerify(size, A, coef_, sec_kv);
    HIPCHECK(hipHostFree(A));

    log_kernel("Host: kernel fill", GBytes, sec, sec_hv, sec_kv);
    return true;
  }

  bool testHostMemory() {
    cout << "Test coherent host memory host filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testHostMemoryHostFill(totalSizes_[i], hipHostMallocCoherent)) {
        return false;
      }
    }

    cout << "Test non-coherent host memory host filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testHostMemoryHostFill(totalSizes_[i], hipHostMallocNonCoherent)) {
        return false;
      }
    }

    cout << "Test coherent host memory kernel filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testHostMemoryKernelFill(totalSizes_[i], hipHostMallocCoherent)) {
        return false;
      }
    }

    cout << "Test non-coherent host memory kernel filling" << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testHostMemoryKernelFill(totalSizes_[i], hipHostMallocNonCoherent)) {
        return false;
      }
    }

    return true;
  }

  /* This function should be via device attribute query*/
  bool supportDeviceMallocFinegrained() {
#ifdef __HIP_PLATFORM_AMD__
    T *A = nullptr;
    hipExtMallocWithFlags((void **)&A, sizeof(T), hipDeviceMallocFinegrained);
    if (!A) {
      return false;
    }
    HIPCHECK(hipFree(A));
    return true;
#else
    return false;
#endif
  }

  unsigned int setNumBlocks(size_t size) {
    size_t num = size/sizeof(T);

#if USE_HIPTEST_SETNUMBLOCKS
    return HipTest::setNumBlocks(blocksPerCU_, threadsPerBlock_,
                                 num);
#else
    return (num + threadsPerBlock_ - 1) / threadsPerBlock_;
#endif
  }

#ifdef __HIP_PLATFORM_AMD__
  bool testExtDeviceMemoryHostFill(size_t size, unsigned int flags) {
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A = nullptr;
    HIPCHECK(hipExtMallocWithFlags((void **)&A, size, flags));
    if (!A) {
      cout << "failed hipExtMallocWithFlags() with size =" << size << " flags="
           << std::hex << flags << endl;
      return false;
    }

    double sec = 0;
    hostFill(size, A, coef_, sec);  // Cpu can access this mem
    HIPCHECK(hipFree(A));

    log_host("ExtDevice: host   fill", GBytes, sec);
    return true;
  }

  bool testExtDeviceMemoryKernelFill(size_t size, unsigned int flags) {
    double GBytes = (double) size / (1024.0 * 1024.0 * 1024.0);

    T *A = nullptr;
    HIPCHECK(hipExtMallocWithFlags((void **)&A, size, flags));
    if (!A) {
      cout << "failed hipExtMallocWithFlags() with size =" << size << " flags="
           << std::hex << flags << endl;
      return false;
    }

    double sec = 0, sec_hv = 0, sec_kv = 0;
    kernelFill(size, A, coef_, sec);
    hostVerify(size, A, coef_, sec_hv);  // Fine grained device memory can be verified by host
    kernelVerify(size, A, coef_, sec_kv);
    HIPCHECK(hipFree(A));

    log_kernel("ExtDevice: kernel fill", GBytes, sec, sec_hv, sec_kv);

    return true;
  }

  bool testExtDeviceMemory() {
    cout << "Test fine grained device memory host filling"
        << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testExtDeviceMemoryHostFill(totalSizes_[i],
                                       hipDeviceMallocFinegrained)) {
        return false;
      }
    }

    cout << "Test fine grained device memory kernel filling"
        << endl;
    for (int i = 0; i < NUM_SIZE; i++) {
      if (!testExtDeviceMemoryKernelFill(totalSizes_[i],
                                         hipDeviceMallocFinegrained)) {
        return false;
      }
    }

    return true;
  }
#endif

  bool run() {
    if (supportLargeBar()) {
      if (!testLargeBar()) {
        return false;
      }
    }

    if (supportManagedMemory()) {
      if (!testManagedMemory()) {
        return false;
      }
    }

    if (!testHostMemory()) {
      return false;
    }

#ifdef __HIP_PLATFORM_AMD__
    if (supportDeviceMallocFinegrained()) {
      if (!testExtDeviceMemory()) {
        return false;
      }
    }
#endif
    return true;
  }

};

int main(int argc, char *argv[]) {
  HipTest::parseStandardArguments(argc, argv, true); // For ::p_gpuDevice, ::blocksPerCU, ::threadsPerBlock
  cout << "Test int" << endl;
  hipPerfMemFill<int> hipPerfMemFillInt(::blocksPerCU, ::threadsPerBlock);
  hipPerfMemFillInt.open(::p_gpuDevice);
  HIPASSERT(hipPerfMemFillInt.run());

  cout << "Test double" << endl;
  hipPerfMemFill<double> hipPerfMemFillDouble(::blocksPerCU, ::threadsPerBlock);
  hipPerfMemFillDouble.open(::p_gpuDevice);
  HIPASSERT(hipPerfMemFillDouble.run());

  passed();
}