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124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_cshift.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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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 Grid;
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;
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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 latt_size = GridDefaultLatt();
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Coordinate simd_layout( { vComplex::Nsimd(),1,1,1});
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Coordinate mpi_layout = GridDefaultMpi();
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GridCartesian Fine(latt_size,simd_layout,mpi_layout);
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GridParallelRNG FineRNG(&Fine); FineRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
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LatticeComplex U(&Fine);
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LatticeComplex ShiftU(&Fine);
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LatticeComplex lex(&Fine);
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lex=Zero();
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Integer stride =1;
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{
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LatticeComplex coor(&Fine);
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for(int d=0;d<4;d++){
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LatticeCoordinate(coor,d);
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lex = lex + coor*stride;
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stride=stride*latt_size[d];
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}
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U=lex;
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}
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TComplex cm;
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for(int dir=0;dir<4;dir++){
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for(int shift=0;shift<latt_size[dir];shift++){
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if ( Fine.IsBoss() )
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std::cout<<GridLogMessage<<"Shifting by "<<shift<<" in direction"<<dir<<std::endl;
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ShiftU = Cshift(U,dir,shift); // Shift everything
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/*
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std::cout << "U[0]" << U[0]<<std::endl;
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std::cout << "U[1]" << U[1]<<std::endl;
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std::cout << "ShiftU[0]" << ShiftU[0]<<std::endl;
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std::cout << "ShiftU[1]" << ShiftU[1]<<std::endl;
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*/
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Coordinate coor(4);
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for(coor[3]=0;coor[3]<latt_size[3];coor[3]++){
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for(coor[2]=0;coor[2]<latt_size[2];coor[2]++){
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for(coor[1]=0;coor[1]<latt_size[1];coor[1]++){
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for(coor[0]=0;coor[0]<latt_size[0];coor[0]++){
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peekSite(cm,ShiftU,coor);
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double nrm=norm2(U);
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Coordinate scoor(coor);
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scoor[dir] = (scoor[dir]+shift)%latt_size[dir];
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Integer slex = scoor[0]
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+ latt_size[0]*scoor[1]
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+ latt_size[0]*latt_size[1]*scoor[2]
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+ latt_size[0]*latt_size[1]*latt_size[2]*scoor[3];
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Complex scm(slex);
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nrm = abs(scm-cm()()());
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Coordinate peer(4);
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Complex tmp =cm;
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Integer index=real(tmp);
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Lexicographic::CoorFromIndex(peer,index,latt_size);
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if (nrm > 0){
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std::cerr<<"FAIL shift "<< shift<<" in dir "<< dir<<" ["<<coor[0]<<","<<coor[1]<<","<<coor[2]<<","<<coor[3]<<"] = "<< cm()()()<<" expect "<<scm<<" "<<nrm<<std::endl;
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std::cerr<<"Got "<<index<<" " << peer[0]<<","<<peer[1]<<","<<peer[2]<<","<<peer[3]<<std::endl;
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index=real(scm);
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Lexicographic::CoorFromIndex(peer,index,latt_size);
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std::cerr<<"Expect "<<index<<" " << peer[0]<<","<<peer[1]<<","<<peer[2]<<","<<peer[3]<<std::endl;
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}
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/*
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else {
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std::cerr<<"PASS shift "<< shift<<" in dir "<< dir<<" ["<<coor[0]<<","<<coor[1]<<","<<coor[2]<<","<<coor[3]<<"] = "<< cm()()()<<" expect "<<scm<<" "<<nrm<<std::endl;
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std::cerr<<"Got "<<index<<" " << peer[0]<<","<<peer[1]<<","<<peer[2]<<","<<peer[3]<<std::endl;
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}
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*/
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}}}}
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}
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}
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Grid_finalize();
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}
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