deviceQuery.cpp

/*
 * Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * 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
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include <cuda_runtime.h>
#include <iostream>
#include <memory>
#include <string>

int main(void)
{
  int deviceCount = 0;
  cudaError_t error_id = cudaGetDeviceCount(&deviceCount);

  if (error_id != cudaSuccess) {
    printf("cudaGetDeviceCount returned %d\n-> %s\n",
           static_cast<int>(error_id), cudaGetErrorString(error_id));
    printf("Result = FAIL\n");
    exit(EXIT_FAILURE);
  }

  // This function call returns 0 if there are no CUDA capable devices.
  if (deviceCount == 0) {
    printf("There are no available device(s) that support CUDA\n");
  } else {
    printf("Detected %d CUDA Capable device(s)\n", deviceCount);
  }

  int dev, driverVersion = 0, runtimeVersion = 0;

  for (dev = 0; dev < deviceCount; ++dev) {
    cudaSetDevice(dev);
    cudaDeviceProp deviceProp;
    cudaGetDeviceProperties(&deviceProp, dev);

    printf("\nDevice %d: \"%s\"\n", dev, deviceProp.name);

    // Console log
    cudaDriverGetVersion(&driverVersion);
    cudaRuntimeGetVersion(&runtimeVersion);
    printf("  CUDA Driver Version / Runtime Version          %d.%d / %d.%d\n",
           driverVersion / 1000, (driverVersion % 100) / 10,
           runtimeVersion / 1000, (runtimeVersion % 100) / 10);
    printf("  CUDA Capability Major/Minor version number:    %d.%d\n",
           deviceProp.major, deviceProp.minor);
  }

  return 0;
}