mirror of
https://github.com/cosmo-sims/monofonIC.git
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259 lines
10 KiB
C++
259 lines
10 KiB
C++
// This file is part of monofonIC (MUSIC2)
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// A software package to generate ICs for cosmological simulations
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// Copyright (C) 2020 by Oliver Hahn
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//
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// monofonIC is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// monofonIC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <cmath>
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#include <complex>
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#include <iostream>
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#include <fstream>
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#include <thread>
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#include <cfenv>
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#if defined(_OPENMP)
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#include <omp.h>
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#endif
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#include <general.hh>
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#include <ic_generator.hh>
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#include <particle_plt.hh>
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// initialise with "default" values
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namespace CONFIG{
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int MPI_thread_support = -1;
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int MPI_task_rank = 0;
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int MPI_task_size = 1;
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bool MPI_ok = false;
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bool MPI_threads_ok = false;
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bool FFTW_threads_ok = false;
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int num_threads = 1;
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}
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#include "system_stat.hh"
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#include <exception>
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#include <stdexcept>
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void handle_eptr(std::exception_ptr eptr) // passing by value is ok
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{
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try {
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if (eptr) {
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std::rethrow_exception(eptr);
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}
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} catch(const std::exception& e) {
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music::elog << "This happened: \"" << e.what() << "\"" << std::endl;
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}
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}
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int main( int argc, char** argv )
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{
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#if defined(NDEBUG)
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music::logger::set_level(music::log_level::info);
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#else
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music::logger::set_level(music::log_level::debug);
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#endif
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//------------------------------------------------------------------------------
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// initialise MPI
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//------------------------------------------------------------------------------
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#if defined(USE_MPI)
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MPI_Init_thread(&argc, &argv, MPI_THREAD_FUNNELED, &CONFIG::MPI_thread_support);
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CONFIG::MPI_threads_ok = CONFIG::MPI_thread_support >= MPI_THREAD_FUNNELED;
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MPI_Comm_rank(MPI_COMM_WORLD, &CONFIG::MPI_task_rank);
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MPI_Comm_size(MPI_COMM_WORLD, &CONFIG::MPI_task_size);
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CONFIG::MPI_ok = true;
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// set up lower logging levels for other tasks
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if( CONFIG::MPI_task_rank!=0 )
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{
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music::logger::set_level(music::log_level::error);
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}
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#endif
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// Ascii ART logo. generated via http://patorjk.com/software/taag/#p=display&f=Nancyj&t=monofonIC
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music::ilog << "\n"
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<< " The unigrid version of MUSIC-2 .8888b dP a88888b. \n"
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<< " 88 \" 88 d8\' `88 \n"
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<< " 88d8b.d8b. .d8888b. 88d888b. .d8888b. 88aaa .d8888b. 88d888b. 88 88 \n"
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<< " 88\'`88\'`88 88\' `88 88\' `88 88\' `88 88 88\' `88 88\' `88 88 88 \n"
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<< " 88 88 88 88. .88 88 88 88. .88 88 88. .88 88 88 88 Y8. .88 \n"
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<< " dP dP dP `88888P\' dP dP `88888P\' dP `88888P\' dP dP dP Y88888P\' \n" << std::endl;
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// git and versioning info:
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music::ilog << "Version: git rev.: " << GIT_REV << ", tag: " << GIT_TAG << ", branch: " << GIT_BRANCH << std::endl;
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// Compilation CMake configuration, time etc info:
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music::ilog << "This " << CMAKE_BUILDTYPE_STR << " build was compiled at " << __TIME__ << " on " << __DATE__ << std::endl;
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#ifdef __GNUC__
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music::ilog << "Compiled with GNU C++ version " << __VERSION__ <<std::endl;
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#else
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music::ilog << "Compiled with " << __VERSION__ << std::endl;
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#endif
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music::ilog << "-------------------------------------------------------------------------------" << std::endl;
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music::ilog << "Compile time options : " << std::endl;
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music::ilog << " Precision : " << CMAKE_PRECISION_STR << std::endl;
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music::ilog << " Convolutions : " << CMAKE_CONVOLVER_STR << std::endl;
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music::ilog << " PLT : " << CMAKE_PLT_STR << std::endl;
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music::ilog << "-------------------------------------------------------------------------------" << std::endl;
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//------------------------------------------------------------------------------
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// Parse command line options
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//------------------------------------------------------------------------------
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if (argc != 2)
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{
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// print_region_generator_plugins();
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print_TransferFunction_plugins();
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print_RNG_plugins();
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print_output_plugins();
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music::elog << "In order to run, you need to specify a parameter file!\n" << std::endl;
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exit(0);
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}
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// open the configuration file
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config_file the_config(argv[1]);
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//------------------------------------------------------------------------------
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// Set up FFTW
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//------------------------------------------------------------------------------
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#if defined(USE_FFTW_THREADS)
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#if defined(USE_MPI)
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if (CONFIG::MPI_threads_ok)
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CONFIG::FFTW_threads_ok = FFTW_API(init_threads)();
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#else
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CONFIG::FFTW_threads_ok = FFTW_API(init_threads)();
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#endif
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#endif
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#if defined(USE_MPI)
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FFTW_API(mpi_init)();
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#endif
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CONFIG::num_threads = the_config.get_value_safe<unsigned>("execution", "NumThreads",std::thread::hardware_concurrency());
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#if defined(USE_FFTW_THREADS)
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if (CONFIG::FFTW_threads_ok)
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FFTW_API(plan_with_nthreads)(CONFIG::num_threads);
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#endif
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//------------------------------------------------------------------------------
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// Set up OpenMP
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//------------------------------------------------------------------------------
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#if defined(_OPENMP)
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omp_set_num_threads(CONFIG::num_threads);
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#endif
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// std::feclearexcept(FE_ALL_EXCEPT);
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//------------------------------------------------------------------------------
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// Write code configuration to screen
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//------------------------------------------------------------------------------
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// hardware related infos
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music::ilog << std::setw(32) << std::left << "CPU vendor string" << " : " << SystemStat::Cpu().get_CPUstring() << std::endl;
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// multi-threading related infos
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music::ilog << std::setw(32) << std::left << "Available HW threads / task" << " : " << std::thread::hardware_concurrency() << " (" << CONFIG::num_threads << " used)" << std::endl;
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// memory related infos
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SystemStat::Memory mem;
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unsigned availpmem = mem.get_AvailMem()/1024/1024;
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unsigned usedpmem = mem.get_UsedMem()/1024/1024;
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unsigned maxpmem = availpmem, minpmem = availpmem;
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unsigned maxupmem = usedpmem, minupmem = usedpmem;
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#if defined(USE_MPI)
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unsigned temp = 0;
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MPI_Allreduce(&minpmem,&temp,1,MPI_UNSIGNED,MPI_MIN,MPI_COMM_WORLD); minpmem = temp;
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MPI_Allreduce(&maxpmem,&temp,1,MPI_UNSIGNED,MPI_MAX,MPI_COMM_WORLD); maxpmem = temp;
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MPI_Allreduce(&minupmem,&temp,1,MPI_UNSIGNED,MPI_MIN,MPI_COMM_WORLD); minupmem = temp;
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MPI_Allreduce(&maxupmem,&temp,1,MPI_UNSIGNED,MPI_MAX,MPI_COMM_WORLD); maxupmem = temp;
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#endif
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music::ilog << std::setw(32) << std::left << "Total system memory (phys)" << " : " << mem.get_TotalMem()/1024/1024 << " Mb" << std::endl;
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music::ilog << std::setw(32) << std::left << "Used system memory (phys)" << " : " << "Max: " << maxupmem << " Mb, Min: " << minupmem << " Mb" << std::endl;
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music::ilog << std::setw(32) << std::left << "Available system memory (phys)" << " : " << "Max: " << maxpmem << " Mb, Min: " << minpmem << " Mb" << std::endl;
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// MPI related infos
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#if defined(USE_MPI)
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music::ilog << std::setw(32) << std::left << "MPI is enabled" << " : " << "yes (" << CONFIG::MPI_task_size << " tasks)" << std::endl;
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music::dlog << std::setw(32) << std::left << "MPI version" << " : " << MPI::get_version() << std::endl;
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#else
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music::ilog << std::setw(32) << std::left << "MPI is enabled" << " : " << "no" << std::endl;
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#endif
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music::ilog << std::setw(32) << std::left << "MPI supports multi-threading" << " : " << (CONFIG::MPI_threads_ok? "yes" : "no") << std::endl;
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// Kernel related infos
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SystemStat::Kernel kern;
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auto kinfo = kern.get_kernel_info();
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music::ilog << std::setw(32) << std::left << "OS/Kernel version" << " : " << kinfo.kernel << " version " << kinfo.major << "." << kinfo.minor << " build " << kinfo.build_number << std::endl;
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// FFTW related infos
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music::ilog << std::setw(32) << std::left << "FFTW version" << " : " << fftw_version << std::endl;
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music::ilog << std::setw(32) << std::left << "FFTW supports multi-threading" << " : " << (CONFIG::FFTW_threads_ok? "yes" : "no") << std::endl;
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music::ilog << std::setw(32) << std::left << "FFTW mode" << " : ";
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#if defined(FFTW_MODE_PATIENT)
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music::ilog << "FFTW_PATIENT" << std::endl;
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#elif defined(FFTW_MODE_MEASURE)
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music::ilog << "FFTW_MEASURE" << std::endl;
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#else
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music::ilog << "FFTW_ESTIMATE" << std::endl;
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#endif
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//--------------------------------------------------------------------
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// Initialise plug-ins
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//--------------------------------------------------------------------
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try
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{
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ic_generator::Initialise( the_config );
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}catch(...){
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handle_eptr( std::current_exception() );
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music::elog << "Problem during initialisation. See error(s) above. Exiting..." << std::endl;
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#if defined(USE_MPI)
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MPI_Finalize();
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#endif
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return 1;
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}
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///////////////////////////////////////////////////////////////////////
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// do the job...
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///////////////////////////////////////////////////////////////////////
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ic_generator::Run( the_config );
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// particle::test_plt();
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///////////////////////////////////////////////////////////////////////
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// call the destructor of plugins before tearing down MPI
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ic_generator::reset();
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#if defined(USE_MPI)
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MPI_Barrier(MPI_COMM_WORLD);
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MPI_Finalize();
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#endif
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music::ilog << "-------------------------------------------------------------------------------" << std::endl;
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music::ilog << "Done. Have a nice day!\n" << std::endl;
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return 0;
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}
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