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Cleaner
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@ -36,71 +36,17 @@ NAMESPACE_BEGIN(Grid);
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template<typename MomentaField>
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struct DDHMCFilter: public MomentumFilterBase<MomentaField>
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{
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// typedef typename MomentaField::vector_type vector_type; //SIMD-vectorized complex type
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// typedef typename MomentaField::scalar_type scalar_type; //scalar complex type
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// typedef iVector<iScalar<iScalar<vector_type> >, Nd > LorentzScalarType; //complex phase for each site/direction
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// typedef iScalar<iScalar<iScalar<vector_type> > > ScalarType; //complex phase for each site
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// typedef Lattice<LorentzScalarType> LatticeLorentzScalarType;
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// typedef Lattice<ScalarType> LatticeScalarType;
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Coordinate Block;
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int Width;
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// Could also zero links in plane like Luscher advocates.
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DDHMCFilter(const Coordinate &_Block,int _Width): Block(_Block), Width(_Width)
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{
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assert( (Width==0) || (Width==1) || (Width==2) );
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}
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DDHMCFilter(const Coordinate &_Block): Block(_Block) {}
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void applyFilter(MomentaField &P) const override
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{
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GridBase *grid = P.Grid();
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LatticeColourMatrix zz(grid); zz = Zero();
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MomentaField zzz(grid); zzz = Zero();
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////////////////////////////////////////////////////
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// Zero strictly links crossing between domains
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// Luscher also zeroes links in plane of domain boundaries
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// Keeping interior only. This prevents force from plaquettes
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// crossing domains and keeps whole MD trajectory local.
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// This is the case Width=1.
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// Width = 2 should also decouple rectangle force.
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////////////////////////////////////////////////////
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Coordinate Global=grid->GlobalDimensions();
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LatticeInteger coor(grid);
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for(int mu=0;mu<Nd;mu++) {
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#define PROJECT_DOMAIN
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if ( (Block[mu] <= Global[mu])&&(Block[mu]>0) ) {
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LatticeCoordinate(coor,mu);
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#if 1
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P = where(mod(coor,Block[mu])==Integer(Block[mu]-3),zzz,P); //width 4
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P = where(mod(coor,Block[mu])==Integer(Block[mu]-2),zzz,P); //width 4
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P = where(mod(coor,Block[mu])==Integer(Block[mu]-1),zzz,P); //width 2
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P = where(mod(coor,Block[mu])==Integer(0),zzz,P); //width 2
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P = where(mod(coor,Block[mu])==Integer(1),zzz,P); //width 4
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auto P_mu = PeekIndex<LorentzIndex>(P,mu);
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P = where(mod(coor,Block[mu])==Integer(2),zzz,P); //width 6
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PokeIndex<LorentzIndex>(P, P_mu, mu);
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#else
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P = where(mod(coor,Block[mu])==Integer(Block[mu]-1),zzz,P); //width 2
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auto P_mu = PeekIndex<LorentzIndex>(P,mu);
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P = where(mod(coor,Block[mu])==Integer(0),zzz,P); //width 6
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PokeIndex<LorentzIndex>(P, P_mu, mu);
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#endif
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}
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}
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#ifdef PROJECT_DOMAIN
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LatticeInteger domaincb(grid); domaincb=Zero();
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for(int d=0;d<Nd;d++){
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LatticeCoordinate(coor,d);
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domaincb = domaincb + div(coor,Block[d]);
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}
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P = where(mod(domaincb,2)==Integer(1),P,zzz);
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#endif
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DomainDecomposition Domains(Block);
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Domains.ProjectDDHMC(P);
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}
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};
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NAMESPACE_END(Grid);
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