Dylan Angus
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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Copyright (c) 2021 - 2021 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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#pragma once
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#include "hip_test_common.hh"
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#ifdef __linux__
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#include <sys/sysinfo.h>
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#else
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#include <windows.h>
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#include <sysinfoapi.h>
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#endif
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namespace HipTest {
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static inline int getGeviceCount() {
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int dev = 0;
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HIP_CHECK(hipGetDeviceCount(&dev));
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return dev;
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}
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// Get Free Memory from the system
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static inline size_t getMemoryAmount() {
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#ifdef __linux__
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struct sysinfo info{};
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sysinfo(&info);
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return info.freeram / (1024 * 1024); // MB
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#elif defined(_WIN32)
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MEMORYSTATUSEX statex;
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statex.dwLength = sizeof(statex);
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GlobalMemoryStatusEx(&statex);
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return (statex.ullAvailPhys / (1024 * 1024)); // MB
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#endif
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}
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static inline size_t getHostThreadCount(const size_t memPerThread, const size_t maxThreads) {
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if (memPerThread == 0) return 0;
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auto memAmount = getMemoryAmount();
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const auto processor_count = std::thread::hardware_concurrency();
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if (processor_count == 0 || memAmount == 0) return 0;
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size_t thread_count = 0;
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if ((processor_count * memPerThread) < memAmount)
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thread_count = processor_count;
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else
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thread_count = reinterpret_cast<size_t>(memAmount / memPerThread);
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if (maxThreads > 0) {
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return (thread_count > maxThreads) ? maxThreads : thread_count;
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}
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return thread_count;
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}
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} // namespace HipTest
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