Maneesh Gupta
87 líneas
2.6 KiB
C++
87 líneas
2.6 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 "hip/hip_runtime_api.h"
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#include <hip_test_context.hh>
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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, int overwrite) {
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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(), overwrite);
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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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void inline hideDevices(const char* devices) {
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#if HT_NVIDIA
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SETENV("CUDA_VISIBLE_DEVICES", devices, 1);
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#else
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SETENV("HIP_VISIBLE_DEVICES", devices, 1);
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SETENV("ROCR_VISIBLE_DEVICES", devices, 1);
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#endif
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}
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void inline unhideAllDevices() {
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#if HT_NVIDIA
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UNSETENV("CUDA_VISIBLE_DEVICES");
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#else
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UNSETENV("HIP_VISIBLE_DEVICES");
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UNSETENV("ROCR_VISIBLE_DEVICES");
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#endif
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}
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/**
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* @brief Runs hipDeviceGetP2PAttribute with srcDevice = 0 and dstDevice = 1
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* Expects 1 command line arg, which is the Device Visible String
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*
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* @return the error code returned by hipDeviceGetP2PAttribute
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*/
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int main(int argc, char** argv) {
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int value;
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const int srcDevice = 0;
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const int dstDevice = 1;
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const hipDeviceP2PAttr validAttr = hipDevP2PAttrAccessSupported;
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if (argc == 2) {
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hideDevices(argv[1]);
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}
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hipError_t error = hipDeviceGetP2PAttribute(&value, validAttr, srcDevice, dstDevice);
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if (argc == 2) {
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unhideAllDevices();
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}
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return error;
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}
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