Maneesh Gupta
122 rindas
3.9 KiB
C++
122 rindas
3.9 KiB
C++
/*
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Copyright (c) 2015-2016 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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/* HIT_START
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* BUILD: %t %s test_common.cpp
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* HIT_END
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <iostream>
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#include <string>
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#include "hip/hip_runtime.h"
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using namespace std;
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void usage() {
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printf(
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"hipEnvVar [otpions]\n\
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-c,\t\ttotal number of available GPUs and their pciBusID\n\
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-d,\t\tselect one GPU and return its pciBusID\n\
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-v,\t\tsend the list to HIP_VISIBLE_DEVICES env var\n\
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-h,\t\tshow this help message\n\
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");
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}
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int main(int argc, char** argv) {
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// string str = getenv("HIP_VISIBLE_DEVICES");
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// std::cout << "The current env HIP_VISIBLE_DEVICES is"<<str << std::endl;
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extern char* optarg;
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extern int optind;
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int c = 0;
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int retDevCnt = 0, retDevInfo = 0, setEnvVar = 0;
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int device = 0;
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string env;
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while ((c = getopt(argc, argv, "cd:v:h")) != -1) switch (c) {
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case 'c':
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retDevCnt = true;
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break;
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case 'd':
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retDevInfo = true;
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device = atoi(optarg);
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break;
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case 'v':
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setEnvVar = true;
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env = optarg;
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break;
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case 'h':
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usage();
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return 0;
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default:
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// usage();
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return -1;
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}
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if (setEnvVar) {
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// env = "export HIP_VISIBLE_DEVICES=" + env;
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// cout<<"The received env var is: "<<env<<endl;
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setenv("HIP_VISIBLE_DEVICES", env.c_str(), 1);
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setenv("CUDA_VISIBLE_DEVICES", env.c_str(), 1);
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cout << "set env HIP_VISIBLE_DEVICES = " << env.c_str() << endl;
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// verify if the environment variable is set
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char* pPath;
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pPath = getenv("HIP_VISIBLE_DEVICES");
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if (pPath != NULL)
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printf("HIP_VISIBLE_DEVICES is %s\n", pPath);
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else
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printf("HIP_VISIBLE_DEVICES is not set\n");
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}
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// device init
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int devCount = 0;
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hipGetDeviceCount(&devCount);
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// printf("\nTotal number of GPU devices in the system is %d\n",devCount);
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if (devCount == 0) {
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printf("No HIP enabled device\n");
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return -1;
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}
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if (device < 0 || device > devCount - 1) {
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printf("Selected device %d is out of bound. Devices on your system are in range %d - %d\n",
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device, 0, devCount - 1);
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return -1;
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}
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if (retDevCnt) {
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// std::cout << "Total number of devices visible in system is "<< devCount << std::endl;
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std::cout << devCount << std::endl;
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}
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if (retDevInfo) {
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hipDevice_t deviceT;
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hipDeviceGet(&deviceT, device);
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char pciBusId[100];
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memset(pciBusId, 0, 100);
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hipDeviceGetPCIBusId(pciBusId, 100, deviceT);
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cout << pciBusId << endl;
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}
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exit(0);
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}
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