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Grid/lib/qcd/hmc/checkpointers/ILDGCheckpointer.h

125 lines
3.9 KiB
C++

/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/hmc/ILDGCheckpointer.h
Copyright (C) 2016
Author: Guido Cossu <guido.cossu@ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#ifndef ILDG_CHECKPOINTER
#define ILDG_CHECKPOINTER
#ifdef HAVE_LIME
#include <iostream>
#include <sstream>
#include <string>
namespace Grid {
namespace QCD {
// Only for Gauge fields
template <class Implementation>
class ILDGHmcCheckpointer : public BaseHmcCheckpointer<Implementation> {
private:
CheckpointerParameters Params;
public:
INHERIT_GIMPL_TYPES(Implementation);
ILDGHmcCheckpointer(const CheckpointerParameters &Params_) { initialize(Params_); }
void initialize(const CheckpointerParameters &Params_) {
Params = Params_;
// check here that the format is valid
int ieee32big = (Params.format == std::string("IEEE32BIG"));
int ieee32 = (Params.format == std::string("IEEE32"));
int ieee64big = (Params.format == std::string("IEEE64BIG"));
int ieee64 = (Params.format == std::string("IEEE64"));
if (!(ieee64big || ieee32 || ieee32big || ieee64)) {
std::cout << GridLogError << "Unrecognized file format " << Params.format
<< std::endl;
std::cout << GridLogError
<< "Allowed: IEEE32BIG | IEEE32 | IEEE64BIG | IEEE64"
<< std::endl;
exit(1);
}
}
void TrajectoryComplete(int traj, GaugeField &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
if ((traj % Params.saveInterval) == 0) {
std::string config, rng;
this->build_filenames(traj, Params, config, rng);
GridBase *grid = U._grid;
uint32_t nersc_csum,scidac_csuma,scidac_csumb;
BinaryIO::writeRNG(sRNG, pRNG, rng, 0,nersc_csum,scidac_csuma,scidac_csumb);
IldgWriter _IldgWriter(grid->IsBoss());
_IldgWriter.open(config);
_IldgWriter.writeConfiguration(U, traj, config, config);
_IldgWriter.close();
std::cout << GridLogMessage << "Written ILDG Configuration on " << config
<< " checksum " << std::hex
<< nersc_csum<<"/"
<< scidac_csuma<<"/"
<< scidac_csumb
<< std::dec << std::endl;
}
};
void CheckpointRestore(int traj, GaugeField &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
std::string config, rng;
this->build_filenames(traj, Params, config, rng);
this->check_filename(rng);
this->check_filename(config);
uint32_t nersc_csum,scidac_csuma,scidac_csumb;
BinaryIO::readRNG(sRNG, pRNG, rng, 0,nersc_csum,scidac_csuma,scidac_csumb);
FieldMetaData header;
IldgReader _IldgReader;
_IldgReader.open(config);
_IldgReader.readConfiguration(U,header); // format from the header
_IldgReader.close();
std::cout << GridLogMessage << "Read ILDG Configuration from " << config
<< " checksum " << std::hex
<< nersc_csum<<"/"
<< scidac_csuma<<"/"
<< scidac_csumb
<< std::dec << std::endl;
};
};
}
}
#endif // HAVE_LIME
#endif // ILDG_CHECKPOINTER