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rocm-systems/projects/hip/docs/tools/example_codes/device_enumeration.cpp
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Istvan Kiss 197f73dac9 Sync HIP documentation 2025-10-20 (#1258)
* Add examples to tools folder
* Correct P2P memory access section
* Sync poriting guide
* Add HIP Graph tutorial
* Add hint about using amdgpu-dkms for IPC API
* Add a few more env variables
2025-10-29 07:42:06 +01:00

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3.5 KiB
C++

// MIT License
//
// Copyright (c) 2025 Advanced Micro Devices, Inc. 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.
// [sphinx-start]
#include <hip/hip_runtime.h>
#include <cstdlib>
#include <iostream>
#define HIP_CHECK(expression) \
{ \
const hipError_t status = expression; \
if (status != hipSuccess) \
{ \
std::cerr << "HIP error " << status \
<< ": " << hipGetErrorString(status) \
<< " at " << __FILE__ << ":" \
<< __LINE__ << std::endl; \
std::exit(EXIT_FAILURE); \
} \
}
int main()
{
int deviceCount;
HIP_CHECK(hipGetDeviceCount(&deviceCount));
std::cout << "Number of devices: " << deviceCount << std::endl;
for (int deviceId = 0; deviceId < deviceCount; ++deviceId)
{
hipDeviceProp_t deviceProp;
HIP_CHECK(hipGetDeviceProperties(&deviceProp, deviceId));
std::cout << "Device " << deviceId << std::endl << " Properties:" << std::endl;
std::cout << " Name: " << deviceProp.name << std::endl;
std::cout << " Total Global Memory: " << deviceProp.totalGlobalMem / (1024 * 1024) << " MiB" << std::endl;
std::cout << " Shared Memory per Block: " << deviceProp.sharedMemPerBlock / 1024 << " KiB" << std::endl;
std::cout << " Registers per Block: " << deviceProp.regsPerBlock << std::endl;
std::cout << " Warp Size: " << deviceProp.warpSize << std::endl;
std::cout << " Max Threads per Block: " << deviceProp.maxThreadsPerBlock << std::endl;
std::cout << " Max Threads per Multiprocessor: " << deviceProp.maxThreadsPerMultiProcessor << std::endl;
std::cout << " Number of Multiprocessors: " << deviceProp.multiProcessorCount << std::endl;
std::cout << " Max Threads Dimensions: ["
<< deviceProp.maxThreadsDim[0] << ", "
<< deviceProp.maxThreadsDim[1] << ", "
<< deviceProp.maxThreadsDim[2] << "]" << std::endl;
std::cout << " Max Grid Size: ["
<< deviceProp.maxGridSize[0] << ", "
<< deviceProp.maxGridSize[1] << ", "
<< deviceProp.maxGridSize[2] << "]" << std::endl;
std::cout << std::endl;
}
return EXIT_SUCCESS;
}
// [sphinx-end]