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https://github.com/paboyle/Grid.git
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131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/hmc/ILDGCheckpointer.h
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Copyright (C) 2015
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Author: Guido Cossu
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This program 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 2 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution
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directory
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*************************************************************************************/
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/* END LEGAL */
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#ifndef ILDG_CHECKPOINTER
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#define ILDG_CHECKPOINTER
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#ifdef HAVE_LIME
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#include <iostream>
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#include <sstream>
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#include <string>
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namespace Grid {
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namespace QCD {
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// Only for Gauge fields
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template <class Implementation>
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class ILDGHmcCheckpointer
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: public HmcObservable<typename Implementation::GaugeField> {
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private:
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std::string configStem;
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std::string rngStem;
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int SaveInterval;
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std::string format;
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public:
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INHERIT_GIMPL_TYPES(Implementation);
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ILDGHmcCheckpointer(std::string cf, std::string rn, int savemodulo,
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std::string form = "IEEE64BIG") {
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configStem = cf;
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rngStem = rn;
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SaveInterval = savemodulo;
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format = form;
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// check here that the format is valid
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int ieee32big = (format == std::string("IEEE32BIG"));
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int ieee32 = (format == std::string("IEEE32"));
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int ieee64big = (format == std::string("IEEE64BIG"));
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int ieee64 = (format == std::string("IEEE64"));
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if (!(ieee64big || ieee32 || ieee32big || ieee64)) {
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std::cout << GridLogError << "Unrecognized file format " << format
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<< std::endl;
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std::cout << GridLogError
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<< "Allowed: IEEE32BIG | IEEE32 | IEEE64BIG | IEEE64"
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<< std::endl;
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exit(0);
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}
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};
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void TrajectoryComplete(int traj, GaugeField &U, GridSerialRNG &sRNG,
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GridParallelRNG &pRNG) {
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if ((traj % SaveInterval) == 0) {
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std::string rng;
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{
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std::ostringstream os;
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os << rngStem << "." << traj;
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rng = os.str();
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}
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std::string config;
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{
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std::ostringstream os;
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os << configStem << "." << traj;
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config = os.str();
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}
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ILDGIO IO(config, ILDGwrite);
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BinaryIO::writeRNGSerial(sRNG, pRNG, rng, 0);
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uint32_t csum = IO.writeConfiguration(U, format);
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std::cout << GridLogMessage << "Written ILDG Configuration on " << config
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<< " checksum " << std::hex << csum << std::dec << std::endl;
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}
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};
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void CheckpointRestore(int traj, GaugeField &U, GridSerialRNG &sRNG,
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GridParallelRNG &pRNG) {
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std::string rng;
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{
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std::ostringstream os;
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os << rngStem << "." << traj;
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rng = os.str();
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}
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std::string config;
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{
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std::ostringstream os;
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os << configStem << "." << traj;
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config = os.str();
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}
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ILDGIO IO(config, ILDGread);
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BinaryIO::readRNGSerial(sRNG, pRNG, rng, 0);
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uint32_t csum = IO.readConfiguration(U);// format from the header
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std::cout << GridLogMessage << "Read ILDG Configuration from " << config
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<< " checksum " << std::hex << csum << std::dec << std::endl;
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};
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};
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}
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}
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#endif
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#endif
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