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tests/IO/Test_ildg_io.cc Normal file
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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_nersc_io.cc
Copyright (C) 2015
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
Author: paboyle <paboyle@ph.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 */
#include <Grid/Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::cout <<GridLogMessage<< " main "<<std::endl;
std::vector<int> simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
//std::vector<int> latt_size ({48,48,48,96});
//std::vector<int> latt_size ({32,32,32,32});
std::vector<int> latt_size ({16,16,16,32});
std::vector<int> clatt_size ({4,4,4,8});
int orthodir=3;
int orthosz =latt_size[orthodir];
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
GridCartesian Coarse(clatt_size,simd_layout,mpi_layout);
GridParallelRNG pRNGa(&Fine);
GridParallelRNG pRNGb(&Fine);
GridSerialRNG sRNGa;
GridSerialRNG sRNGb;
std::cout <<GridLogMessage<< " seeding... "<<std::endl;
pRNGa.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
sRNGa.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
std::cout <<GridLogMessage<< " ...done "<<std::endl;
LatticeGaugeField Umu(&Fine);
LatticeGaugeField Umu_diff(&Fine);
LatticeGaugeField Umu_saved(&Fine);
std::vector<LatticeColourMatrix> U(4,&Fine);
SU3::HotConfiguration(pRNGa,Umu);
FieldMetaData header;
std::cout <<GridLogMessage<<"**************************************"<<std::endl;
std::cout <<GridLogMessage<<"** Writing out ILDG conf *********"<<std::endl;
std::cout <<GridLogMessage<<"**************************************"<<std::endl;
std::string file("./ckpoint_ildg.4000");
IldgIO::writeConfiguration(file,Umu, "IEEE64BIG");
Umu_saved = Umu;
std::cout <<GridLogMessage<<"**************************************"<<std::endl;
std::cout <<GridLogMessage<<"** Reading back ILDG conf *********"<<std::endl;
std::cout <<GridLogMessage<<"**************************************"<<std::endl;
IldgIO::readConfiguration(file,Umu,header);
Umu_diff = Umu - Umu_saved;
std::cout <<GridLogMessage<< "norm2 Gauge Diff = "<<norm2(Umu_diff)<<std::endl;
Grid_finalize();
}