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Basic non-local coarsening of operator test
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Peter Boyle
parent
64283c8673
commit
9246e653cd
@ -37,6 +37,9 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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using namespace std;
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using namespace Grid;
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///////////////////////
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// Tells little dirac op to use MdagM as the .Op()
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///////////////////////
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template<class Field>
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class HermOpAdaptor : public LinearOperatorBase<Field>
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{
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@ -56,81 +59,6 @@ public:
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void HermOp(const Field &in, Field &out){
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wrapped.HermOp(in,out);
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}
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};
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template<class Matrix,class Field>
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class PVdagMLinearOperator : public LinearOperatorBase<Field> {
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Matrix &_Mat;
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Matrix &_PV;
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public:
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PVdagMLinearOperator(Matrix &Mat,Matrix &PV): _Mat(Mat),_PV(PV){};
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void OpDiag (const Field &in, Field &out) { assert(0); }
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void OpDir (const Field &in, Field &out,int dir,int disp) { assert(0); }
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void OpDirAll (const Field &in, std::vector<Field> &out){ assert(0); };
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void Op (const Field &in, Field &out){
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Field tmp(in.Grid());
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_Mat.M(in,tmp);
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_PV.Mdag(tmp,out);
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}
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void AdjOp (const Field &in, Field &out){
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Field tmp(in.Grid());
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_PV.M(tmp,out);
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_Mat.Mdag(in,tmp);
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}
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void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){ assert(0); }
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void HermOp(const Field &in, Field &out){
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Field tmp(in.Grid());
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_Mat.M(in,tmp);
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_PV.Mdag(tmp,out);
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_PV.M(out,tmp);
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_Mat.Mdag(tmp,out);
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}
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};
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template<class Field> class DumbOperator : public LinearOperatorBase<Field> {
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public:
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LatticeComplex scale;
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DumbOperator(GridBase *grid) : scale(grid)
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{
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scale = 0.0;
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LatticeComplex scalesft(grid);
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LatticeComplex scaletmp(grid);
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for(int d=0;d<4;d++){
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Lattice<iScalar<vInteger> > x(grid); LatticeCoordinate(x,d+1);
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LatticeCoordinate(scaletmp,d+1);
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scalesft = Cshift(scaletmp,d+1,1);
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scale = 100.0*scale + where( mod(x ,2)==(Integer)0, scalesft,scaletmp);
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}
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// std::cout << " scale\n" << scale << std::endl;
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}
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// Support for coarsening to a multigrid
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void OpDiag (const Field &in, Field &out) {};
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void OpDir (const Field &in, Field &out,int dir,int disp){};
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void OpDirAll (const Field &in, std::vector<Field> &out) {};
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void Op (const Field &in, Field &out){
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out = scale * in;
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}
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void AdjOp (const Field &in, Field &out){
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out = scale * in;
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}
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void HermOp(const Field &in, Field &out){
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double n1, n2;
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HermOpAndNorm(in,out,n1,n2);
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}
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void HermOpAndNorm(const Field &in, Field &out,double &n1,double &n2){
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ComplexD dot;
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out = scale * in;
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dot= innerProduct(in,out);
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n1=real(dot);
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dot = innerProduct(out,out);
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n2=real(dot);
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}
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};
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@ -140,7 +68,9 @@ int main (int argc, char ** argv)
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const int Ls=4;
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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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GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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@ -151,7 +81,10 @@ int main (int argc, char ** argv)
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for(int d=0;d<clatt.size();d++){
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clatt[d] = clatt[d]/2;
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}
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GridCartesian *Coarse4d = SpaceTimeGrid::makeFourDimGrid(clatt, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());;
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GridCartesian *Coarse4d = SpaceTimeGrid::makeFourDimGrid(clatt,
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GridDefaultSimd(Nd,vComplex::Nsimd()),
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GridDefaultMpi());;
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GridCartesian *Coarse5d = SpaceTimeGrid::makeFiveDimGrid(1,Coarse4d);
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std::vector<int> seeds4({1,2,3,4});
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@ -167,19 +100,15 @@ int main (int argc, char ** argv)
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LatticeFermion tmp(FGrid);
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LatticeFermion err(FGrid);
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LatticeGaugeField Umu(UGrid);
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//SU<Nc>::HotConfiguration(RNG4,Umu);
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SU<Nc>::ColdConfiguration(Umu);
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// auto U = peekLorentz(Umu,0);
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// Umu=Zero(); // Make operator local for now
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// pokeLorentz(Umu,U,0);
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SU<Nc>::HotConfiguration(RNG4,Umu);
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// Umu=Zero();
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RealD mass=0.5;
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RealD mass=0.1;
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RealD M5=1.8;
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DomainWallFermionD Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
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DomainWallFermionD Dpv(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,1.0,M5);
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const int nbasis = 20;
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const int nbasis = 4;
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const int cb = 0 ;
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LatticeFermion prom(FGrid);
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@ -187,40 +116,52 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage<<"Calling Aggregation class" <<std::endl;
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// Possible tactics -- with zero gauge field, verify block locality of dirac op
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// Possible tactics -- with zero gauge field, take inner products
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// Squared operator
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///////////////////////////////////////////////////////////
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// Squared operator is in HermOp
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///////////////////////////////////////////////////////////
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MdagMLinearOperator<DomainWallFermionD,LatticeFermion> HermDefOp(Ddwf);
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DumbOperator<LatticeFermion> Diagonal(FGrid);
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typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
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///////////////////////////////////////////////////
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// Random aggregation space
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///////////////////////////////////////////////////
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std::cout<<GridLogMessage << "Building random aggregation class"<< std::endl;
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typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
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Subspace Aggregates(Coarse5d,FGrid,cb);
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Aggregates.CreateSubspaceRandom(RNG5);
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std::cout<<GridLogMessage << "Called aggregation class"<< std::endl;
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///////////////////////////////////////////////////
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// Build little dirac op
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///////////////////////////////////////////////////
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std::cout<<GridLogMessage << "Building little Dirac operator"<< std::endl;
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typedef GeneralCoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
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typedef LittleDiracOperator::CoarseVector CoarseVector;
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NextToNearestStencilGeometry5D geom;
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NextToNearestStencilGeometry5D geom(Coarse5d);
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LittleDiracOperator LittleDiracOp(geom,FGrid,Coarse5d);
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LittleDiracOp.CoarsenOperator(HermDefOp,Aggregates);
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// LittleDiracOp.CoarsenOperator(Diagonal,Aggregates);
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LittleDiracOperator LittleDiracOpCol(geom,FGrid,Coarse5d);
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std::cout<<GridLogMessage<<"Coarsened operator "<<std::endl;
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HermOpAdaptor<LatticeFermionD> HOA(HermDefOp);
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int pp=16;
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// LittleDiracOpCol.CoarsenOperator(HOA,Aggregates);
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// std::cout << "LittleDiracOp old " << LittleDiracOpCol._A[pp]<<std::endl;
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LittleDiracOp.CoarsenOperatorColoured(HOA,Aggregates);
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// std::cout << "LittleDiracOp new " << LittleDiracOp._A[pp]<<std::endl;
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///////////////////////////////////////////////////
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// Test the operator
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///////////////////////////////////////////////////
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CoarseVector c_src (Coarse5d);
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CoarseVector c_res (Coarse5d);
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CoarseVector c_res_dag(Coarse5d);
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CoarseVector c_proj(Coarse5d);
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subspace=Aggregates.subspace;
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Complex one(1.0);
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c_src = one; // 1 in every element for vector 1.
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Coordinate coor(5,0);
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// random(CRNG,c_src);
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c_src = 1.0;
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// std::cout << "c_src"<< c_src<< std::endl;
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blockPromote(c_src,err,subspace);
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prom=Zero();
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@ -232,25 +173,23 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage<<"c_src "<<norm2(c_src)<<std::endl;
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std::cout<<GridLogMessage<<"prom "<<norm2(prom)<<std::endl;
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// blockPick(Coarse5d,c_src,c_src,coor);
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// blockPromote(c_src,prom,subspace);
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HermDefOp.HermOp(prom,tmp);
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// Diagonal.HermOp(prom,tmp);
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HermDefOp.Op(prom,tmp);
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// HermDefOp.Op(prom,tmp);
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blockProject(c_proj,tmp,subspace);
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std::cout<<GridLogMessage<<" Called Big Dirac Op "<<norm2(tmp)<<std::endl;
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LittleDiracOp.M(c_src,c_res);
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std::cout<<GridLogMessage<<" Called Little Dirac Op c_src "<< norm2(c_src) << " c_res "<< norm2(c_res) <<std::endl;
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LittleDiracOp.Mdag(c_src,c_res_dag);
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std::cout<<GridLogMessage<<"Little dop : "<<norm2(c_res)<<std::endl;
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// std::cout<<GridLogMessage<<" Little "<< c_res<<std::endl;
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std::cout<<GridLogMessage<<"Little dop dag : "<<norm2(c_res_dag)<<std::endl;
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std::cout<<GridLogMessage<<"Big dop in subspace : "<<norm2(c_proj)<<std::endl;
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// std::cout<<GridLogMessage<<" Big "<< c_proj<<std::endl;
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c_proj = c_proj - c_res;
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std::cout<<GridLogMessage<<" ldop error: "<<norm2(c_proj)<<std::endl;
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// std::cout<<GridLogMessage<<" error "<< c_proj<<std::endl;
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c_res_dag = c_res_dag - c_res;
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std::cout<<GridLogMessage<<"Little dopDag - dop: "<<norm2(c_res_dag)<<std::endl;
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std::cout<<GridLogMessage << "Testing Hermiticity stochastically "<< std::endl;
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CoarseVector phi(Coarse5d);
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@ -264,8 +203,10 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage<<"Made randoms "<<norm2(phi)<<" " << norm2(chi)<<std::endl;
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LittleDiracOp.M(phi,Aphi);
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LittleDiracOp.Mdag(chi,Achi);
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std::cout<<GridLogMessage<<"Aphi "<<norm2(Aphi)<<" Adag chi" << norm2(Achi)<<std::endl;
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std::cout<<GridLogMessage<<"Aphi "<<norm2(Aphi)<<" A chi" << norm2(Achi)<<std::endl;
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ComplexD pAc = innerProduct(chi,Aphi);
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ComplexD cAp = innerProduct(phi,Achi);
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@ -273,7 +214,6 @@ int main (int argc, char ** argv)
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ComplexD pAp = innerProduct(phi,Aphi);
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std::cout<<GridLogMessage<< "pAc "<<pAc<<" cAp "<< cAp<< " diff "<<pAc-adj(cAp)<<std::endl;
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std::cout<<GridLogMessage<< "pAp "<<pAp<<" cAc "<< cAc<<"Should be real"<< std::endl;
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std::cout<<GridLogMessage<<"Testing linearity"<<std::endl;
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@ -292,34 +232,6 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
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std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
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std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
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std::cout<<GridLogMessage<<std::endl;
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std::cout<<GridLogMessage<<std::endl;
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PVdagMLinearOperator<DomainWallFermionD,LatticeFermionD> PVdagM(Ddwf,Dpv);
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HermOpAdaptor<LatticeFermionD> HOA(PVdagM);
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// Run power method on HOA??
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PowerMethod<LatticeFermion> PM; PM(HOA,src);
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// Warning: This routine calls PVdagM.Op, not PVdagM.HermOp
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Subspace AggregatesPD(Coarse5d,FGrid,cb);
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AggregatesPD.CreateSubspaceChebyshev(RNG5,
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HOA,
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nbasis,
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5000.0,
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0.02,
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100,
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50,
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50,
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0.0);
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LittleDiracOperator LittleDiracOpPV(geom,FGrid,Coarse5d);
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LittleDiracOpPV.CoarsenOperator(PVdagM,AggregatesPD);
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std::cout<<GridLogMessage<<std::endl;
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std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
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std::cout<<GridLogMessage<<std::endl;
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std::cout<<GridLogMessage << "Done "<< std::endl;
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Grid_finalize();
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return 0;
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