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Shaking out
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@ -1,4 +1,4 @@
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/*************************************************************************************
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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@ -47,20 +47,36 @@ int main (int argc, char ** argv)
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std::vector<int> mpi_layout = GridDefaultMpi();
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std::vector<int> mpi_split (mpi_layout.size(),1);
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
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GridDefaultSimd(Nd,vComplex::Nsimd()),
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GridDefaultMpi());
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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int nrhs = UGrid->RankCount() ;
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/////////////////////////////////////////////
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// Split into 1^4 mpi communicators
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/////////////////////////////////////////////
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for(int i=0;i<argc;i++){
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if(std::string(argv[i]) == "--split"){
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for(int k=0;k<mpi_layout.size();k++){
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std::stringstream ss;
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ss << argv[i+1+k];
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ss >> mpi_split[k];
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}
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break;
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}
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}
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int nrhs = 1;
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int me;
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for(int i=0;i<mpi_layout.size();i++) nrhs *= (mpi_layout[i]/mpi_split[i]);
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GridCartesian * SGrid = new GridCartesian(GridDefaultLatt(),
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GridDefaultSimd(Nd,vComplex::Nsimd()),
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mpi_split,
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*UGrid);
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*UGrid,me);
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GridCartesian * SFGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,SGrid);
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GridRedBlackCartesian * SrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(SGrid);
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@ -78,16 +94,46 @@ int main (int argc, char ** argv)
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std::vector<FermionField> result(nrhs,FGrid);
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FermionField tmp(FGrid);
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for(int s=0;s<nrhs;s++) random(pRNG5,src[s]);
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for(int s=0;s<nrhs;s++) result[s]=zero;
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#undef LEXICO_TEST
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#ifdef LEXICO_TEST
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{
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LatticeFermion lex(FGrid); lex = zero;
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LatticeFermion ftmp(FGrid);
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Integer stride =10000;
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double nrm;
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LatticeComplex coor(FGrid);
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for(int d=0;d<5;d++){
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LatticeCoordinate(coor,d);
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ftmp = stride;
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ftmp = ftmp * coor;
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lex = lex + ftmp;
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stride=stride/10;
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}
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for(int s=0;s<nrhs;s++) {
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src[s]=lex;
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ftmp = 1000*1000*s;
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src[s] = src[s] + ftmp;
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}
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}
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#else
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for(int s=0;s<nrhs;s++) {
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random(pRNG5,src[s]);
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tmp = 100.0*s;
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src[s] = (src[s] * 0.1) + tmp;
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std::cout << " src ]"<<s<<"] "<<norm2(src[s])<<std::endl;
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}
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#endif
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for(int n =0 ; n< nrhs ; n++) {
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std::cout << " src"<<n<<"\n"<< src[n] <<std::endl;
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}
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LatticeGaugeField Umu(UGrid); SU3::HotConfiguration(pRNG,Umu);
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/////////////////
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// MPI only sends
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/////////////////
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int me = UGrid->ThisRank();
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LatticeGaugeField s_Umu(SGrid);
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FermionField s_src(SFGrid);
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FermionField s_tmp(SFGrid);
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@ -98,6 +144,36 @@ int main (int argc, char ** argv)
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///////////////////////////////////////////////////////////////
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Grid_split (Umu,s_Umu);
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Grid_split (src,s_src);
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std::cout << " split rank " <<me << " s_src "<<norm2(s_src)<<std::endl;
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std::cout << " s_src\n "<< s_src <<std::endl;
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#ifdef LEXICO_TEST
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FermionField s_src_tmp(SFGrid);
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FermionField s_src_diff(SFGrid);
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{
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LatticeFermion lex(SFGrid); lex = zero;
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LatticeFermion ftmp(SFGrid);
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Integer stride =10000;
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double nrm;
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LatticeComplex coor(SFGrid);
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for(int d=0;d<5;d++){
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LatticeCoordinate(coor,d);
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ftmp = stride;
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ftmp = ftmp * coor;
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lex = lex + ftmp;
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stride=stride/10;
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}
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s_src_tmp=lex;
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ftmp = 1000*1000*me;
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s_src_tmp = s_src_tmp + ftmp;
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}
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s_src_diff = s_src_tmp - s_src;
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std::cout << " s_src_diff " << norm2(s_src_diff)<<std::endl;
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std::cout << " s_src \n" << s_src << std::endl;
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std::cout << " s_src_tmp \n" << s_src_tmp << std::endl;
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std::cout << " s_src_diff \n" << s_src_diff << std::endl;
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#endif
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///////////////////////////////////////////////////////////////
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// Set up N-solvers as trivially parallel
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@ -113,10 +189,11 @@ int main (int argc, char ** argv)
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MdagMLinearOperator<DomainWallFermionR,FermionField> HermOp(Ddwf);
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MdagMLinearOperator<DomainWallFermionR,FermionField> HermOpCk(Dchk);
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ConjugateGradient<FermionField> CG((1.0e-5/(me+1)),10000);
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ConjugateGradient<FermionField> CG((1.0e-5),10000);
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s_res = zero;
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CG(HermOp,s_src,s_res);
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std::cout << " s_res norm "<<norm2(s_res)<<std::endl;
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/////////////////////////////////////////////////////////////
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// Report how long they all took
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/////////////////////////////////////////////////////////////
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@ -134,10 +211,12 @@ int main (int argc, char ** argv)
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std::cout << GridLogMessage<< "Unsplitting the result"<<std::endl;
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Grid_unsplit(result,s_res);
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std::cout << GridLogMessage<< "Checking the residuals"<<std::endl;
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for(int n=0;n<nrhs;n++){
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std::cout << " res["<<n<<"] norm "<<norm2(result[n])<<std::endl;
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HermOpCk.HermOp(result[n],tmp); tmp = tmp - src[n];
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std::cout << GridLogMessage<<" resid["<<n<<"] "<< norm2(tmp)<<std::endl;
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std::cout << GridLogMessage<<" resid["<<n<<"] "<< norm2(tmp)/norm2(src[n])<<std::endl;
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}
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Grid_finalize();
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