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Grid/lib/qcd/SpaceTimeGrid.cc
Peter Boyle 0bc004de7c Domain wall fermions now invert ; have the basis set up for
Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson)
Approx        Representation               Kernel.

All are done with space-time taking part in checkerboarding, Ls uncheckerboarded

Have only so far tested the Domain Wall limit of mobius, and at that only checked
that it
i)  Inverts
ii) 5dim DW == Ls copies of 4dim D2
iii) MeeInv Mee == 1
iv) Meo+Mee+Moe+Moo == M unprec.
v) MpcDagMpc is hermitan
vi) Mdag is the adjoint of M between stochastic vectors.

That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve
all converge and the true residual becomes small; so pretty good tests.
2015-06-02 16:57:12 +01:00

53 lines
1.5 KiB
C++

#include <Grid.h>
namespace Grid {
namespace QCD {
/////////////////////////////////////////////////////////////////
// Public interface
/////////////////////////////////////////////////////////////////
GridCartesian *SpaceTimeGrid::makeFourDimGrid(const std::vector<int> & latt,const std::vector<int> &simd,const std::vector<int> &mpi)
{
return new GridCartesian(latt,simd,mpi);
}
GridRedBlackCartesian *SpaceTimeGrid::makeFourDimRedBlackGrid(const GridCartesian *FourDimGrid)
{
return new GridRedBlackCartesian(FourDimGrid);
}
GridCartesian *SpaceTimeGrid::makeFiveDimGrid(int Ls,const GridCartesian *FourDimGrid)
{
int N4=FourDimGrid->_ndimension;
std::vector<int> latt5(1,Ls);
std::vector<int> simd5(1,1);
std::vector<int> mpi5(1,1);
for(int d=0;d<N4;d++){
latt5.push_back(FourDimGrid->_fdimensions[d]);
simd5.push_back(FourDimGrid->_simd_layout[d]);
mpi5.push_back(FourDimGrid->_processors[d]);
}
return new GridCartesian(latt5,simd5,mpi5);
}
GridRedBlackCartesian *SpaceTimeGrid::makeFiveDimRedBlackGrid(int Ls,const GridCartesian *FourDimGrid)
{
int N4=FourDimGrid->_ndimension;
int cbd=1;
std::vector<int> latt5(1,Ls);
std::vector<int> simd5(1,1);
std::vector<int> mpi5(1,1);
std::vector<int> cb5(1,0);
for(int d=0;d<N4;d++){
latt5.push_back(FourDimGrid->_fdimensions[d]);
simd5.push_back(FourDimGrid->_simd_layout[d]);
mpi5.push_back(FourDimGrid->_processors[d]);
cb5.push_back( 1);
}
return new GridRedBlackCartesian(latt5,simd5,mpi5,cb5,cbd);
}
}}