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Unify environment information gathering and printing
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| // Copyright 2021 Bernhard Manfred Gruber | ||
| // SPDX-License-Identifier: LGPL-3.0-or-later | ||
|
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| #pragma once | ||
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|
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| #include <fmt/core.h> | ||
| #if __has_include(<omp.h>) | ||
| # include <omp.h> | ||
| #endif | ||
| #ifdef ALPAKA_DEBUG // defined when the cmake target links to alpaka | ||
| # include <alpaka/alpaka.hpp> | ||
| #endif | ||
| #include <algorithm> | ||
| #include <string> | ||
| #ifdef _WIN32 | ||
| # define NOMINMAX | ||
| # define WIN32_LEAN_AND_MEAN | ||
| # include <winsock2.h> | ||
| # pragma comment(lib, "ws2_32") | ||
| #else | ||
| # include <unistd.h> | ||
| #endif | ||
|
|
||
| namespace common | ||
| { | ||
| // We used boost::asio::ip::host_name() originally, but it complicated the disassembly and requires asio as | ||
| // additional dependency. | ||
| inline auto hostname() -> std::string | ||
| { | ||
| char name[256]; | ||
| ::gethostname(name, 256); | ||
| return name; | ||
| } | ||
|
|
||
| inline auto trim(std::string s) -> std::string | ||
| { | ||
| const auto pred = [](char c) { return std::isspace(c) == 0; }; | ||
| s.erase(std::find_if(rbegin(s), rend(s), pred).base(), end(s)); | ||
| s.erase(begin(s), std::find_if(begin(s), end(s), pred)); | ||
| return s; | ||
| } | ||
|
|
||
| template<typename AlpakaAcc = void> | ||
| inline auto captureEnv() -> std::string | ||
| { | ||
| std::string env; | ||
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| // hostname | ||
| env += fmt::format("Host: {}", hostname()); | ||
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| // OpenMP | ||
| #ifdef _OPENMP | ||
| const auto maxThreads = static_cast<std::size_t>(omp_get_max_threads()); | ||
| const char* ompProcBind = std::getenv("OMP_PROC_BIND"); // NOLINT(concurrency-mt-unsafe) | ||
| const char* ompPlaces = std::getenv("OMP_PLACES"); // NOLINT(concurrency-mt-unsafe) | ||
| ompProcBind = ompProcBind == nullptr ? "no - PLEASE DEFINE ENV.VAR. OMP_PROC_BIND!" : ompProcBind; | ||
| ompPlaces = ompPlaces == nullptr ? "nothing - PLEASE DEFINE ENV.VAR. OMP_PLACES!" : ompPlaces; | ||
| env += fmt::format("; OpenMP: max {} threads, bound {}, to {}", maxThreads, ompProcBind, ompPlaces); | ||
| #endif | ||
|
|
||
| // SIMD | ||
| std::string simdArch = | ||
| #if defined(__AVX512F__) | ||
| "AVX512F"; | ||
| #elif defined(__AVX2__) | ||
| "AVX2"; | ||
| #elif defined(__AVX__) | ||
| "AVX"; | ||
| #elif defined(__SSE__SSE4_2__) | ||
| "SSE4.2"; | ||
| #elif defined(__SSE__SSE4_1__) | ||
| "SSE4.1"; | ||
| #elif defined(__SSE3__) | ||
| "SSE3"; | ||
| #elif defined(__SSE2__) | ||
| "SSE2"; | ||
| #elif defined(__ARM_NEON__) | ||
| "NEON"; | ||
| #elif defined(__ALTIVEC__) | ||
| "ALTIVEC"; | ||
| #else | ||
| "unknown"; | ||
| #endif | ||
|
|
||
| #ifdef __FMA__ | ||
| simdArch += "+FMA"; | ||
| #endif | ||
| env += fmt::format("; SIMD: {}", simdArch); | ||
|
|
||
| // alpaka | ||
| #ifdef ALPAKA_DEBUG // defined when the cmake target links to alpaka | ||
| if constexpr(!std::is_void_v<AlpakaAcc>) | ||
| { | ||
| using Acc = AlpakaAcc; | ||
| auto accName = alpaka::getAccName<Acc>(); | ||
| accName.erase(begin(accName) + accName.find_first_of('<'), end(accName)); // drop template arguments | ||
| const auto dev = getDevByIdx(alpaka::Platform<Acc>{}, 0u); | ||
| const auto devName = trim(getName(dev)); // TODO(bgruber): drop trim after fix lands in alpaka | ||
| const auto devProps = alpaka::getAccDevProps<Acc>(dev); | ||
| env += fmt::format( | ||
| "; alpaka acc: {}, dev[0]: {}, SMem: {}KiB", | ||
| accName, | ||
| devName, | ||
| devProps.m_sharedMemSizeBytes / 1024); | ||
| } | ||
| #endif | ||
|
|
||
| // CUDA | ||
| #if defined(__NVCC__) || (defined(__clang__) && defined(__CUDACC__)) | ||
| { | ||
| int device; | ||
| cudaGetDevice(&device); | ||
| cudaDeviceProp prop{}; | ||
| cudaGetDeviceProperties(&prop, device); | ||
| env += fmt::format( | ||
| "; CUDA dev: {}, {}MiB GM, {}KiB SM", | ||
| prop.name, | ||
| prop.totalGlobalMem / 1024 / 1024, | ||
| prop.sharedMemPerBlock / 1024); | ||
| } | ||
| #endif | ||
|
|
||
| return env; | ||
| } | ||
| } // namespace common |
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