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110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_nersc_io.cc
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Copyright (C) 2015
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Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: paboyle <paboyle@ph.ed.ac.uk>
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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 directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.h>
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using namespace std;
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using namespace Grid;
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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Coordinate simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
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Coordinate mpi_layout = GridDefaultMpi();
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Coordinate latt_size = GridDefaultLatt();
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int orthodir=3;
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int orthosz =latt_size[orthodir];
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GridCartesian Fine(latt_size,simd_layout,mpi_layout);
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LatticeGaugeField Umu(&Fine);
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std::vector<LatticeColourMatrix> U(4,&Fine);
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FieldMetaData header;
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std::string file("./ckpoint_lat");
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NerscIO::readConfiguration(Umu,header,file);
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for(int mu=0;mu<Nd;mu++){
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U[mu] = PeekIndex<LorentzIndex>(Umu,mu);
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}
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// Painful ; fix syntactical niceness
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LatticeComplex LinkTrace(&Fine);
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LinkTrace=Zero();
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for(int mu=0;mu<Nd;mu++){
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LinkTrace = LinkTrace + trace(U[mu]);
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}
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// (1+2+3)=6 = N(N-1)/2 terms
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LatticeComplex Plaq(&Fine);
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Plaq = Zero();
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#if 1
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for(int mu=1;mu<Nd;mu++){
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for(int nu=0;nu<mu;nu++){
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Plaq = Plaq + trace(U[mu]*Cshift(U[nu],mu,1)*adj(Cshift(U[mu],nu,1))*adj(U[nu]));
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}
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}
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#endif
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double vol = Fine.gSites();
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Complex PlaqScale(1.0/vol/6.0/3.0);
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std::cout<<GridLogMessage <<"PlaqScale" << PlaqScale<<std::endl;
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std::vector<TComplex> Plaq_T(orthosz);
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sliceSum(Plaq,Plaq_T,Nd-1);
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int Nt = Plaq_T.size();
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TComplex Plaq_T_sum;
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Plaq_T_sum=Zero();
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for(int t=0;t<Nt;t++){
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Plaq_T_sum = Plaq_T_sum+Plaq_T[t];
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Complex Pt=TensorRemove(Plaq_T[t]);
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std::cout<<GridLogMessage << "sliced ["<<t<<"]" <<Pt*PlaqScale*Real(Nt)<<std::endl;
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}
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{
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Complex Pt = TensorRemove(Plaq_T_sum);
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std::cout<<GridLogMessage << "total " <<Pt*PlaqScale<<std::endl;
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}
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TComplex Tp = sum(Plaq);
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Complex p = TensorRemove(Tp);
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std::cout<<GridLogMessage << "calculated plaquettes " <<p*PlaqScale<<std::endl;
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Complex LinkTraceScale(1.0/vol/4.0/3.0);
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TComplex Tl = sum(LinkTrace);
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Complex l = TensorRemove(Tl);
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std::cout<<GridLogMessage << "calculated link trace " <<l*LinkTraceScale<<std::endl;
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Grid_finalize();
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}
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