Danylo Lytovchenko
90 rivejä
2.8 KiB
C++
90 rivejä
2.8 KiB
C++
/*
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Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <hip/hip_runtime.h>
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#include <iostream>
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#include <stdlib.h>
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bool UNSETENV(std::string var) {
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int result = -1;
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#ifdef __unix__
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result = unsetenv(var.c_str());
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#else
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result = _putenv((var + '=').c_str());
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#endif
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return (result == 0) ? true : false;
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}
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bool SETENV(std::string var, std::string value) {
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int result = -1;
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#ifdef __unix__
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result = setenv(var.c_str(), value.c_str(), 1);
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#else
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result = _putenv((var + '=' + value).c_str());
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#endif
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return (result == 0) ? true : false;
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}
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// Expects 1 command line arg, which is the Device Visible String
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int main(int argc, char** argv) {
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if (argc != 2) {
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std::cerr << "Invalid number of args passed.\n"
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<< "argc : " << argc << std::endl;
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for (int i = 0; i < argc; i++) {
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std::cerr << " argv[" << i << "] : " << argv[0] << std::endl;
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}
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std::cerr << "The program expects device visibility string i.e. 0,1,2" << std::endl;
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return -1;
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}
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// disable visible_devices env from shell
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#ifdef __HIP_PLATFORM_NVIDIA__
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UNSETENV("CUDA_VISIBLE_DEVICES");
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SETENV("CUDA_VISIBLE_DEVICES", argv[1]);
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auto init_res = hipInit(0);
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if (hipSuccess != init_res) {
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std::cerr << "CUDA INIT API returned : " << hipGetErrorString(init_res) << std::endl;
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return -1;
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}
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#else
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UNSETENV("ROCR_VISIBLE_DEVICES");
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UNSETENV("HIP_VISIBLE_DEVICES");
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SETENV("ROCR_VISIBLE_DEVICES", argv[1]);
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SETENV("HIP_VISIBLE_DEVICES", argv[1]);
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#endif
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int count = 0;
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auto res = hipGetDeviceCount(&count);
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if (hipSuccess != res) {
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std::cerr << "HIP API returned : " << hipGetErrorString(res) << std::endl;
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return -1;
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}
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#ifdef __HIP_PLATFORM_NVIDIA__
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UNSETENV("CUDA_VISIBLE_DEVICES");
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#else
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UNSETENV("ROCR_VISIBLE_DEVICES");
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UNSETENV("HIP_VISIBLE_DEVICES");
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#endif
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return count;
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}
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