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Alternate multigrids

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This commit is contained in:
Peter Boyle
2026-02-13 17:25:45 -05:00
parent 7cd3f21e6b
commit 6ff29f9d4f
8 changed files with 76 additions and 44 deletions
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tests/debug/Test_general_coarse_pvdagm_svd_uv.cc
+6 -6
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@@ -302,7 +302,7 @@ int main (int argc, char ** argv)
DomainWallFermionD Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
DomainWallFermionD Dpv(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,1.0,M5);
const int nbasis = 40;
const int nbasis = 60;
const int cb = 0 ;
NextToNearestStencilGeometry5D geom(Coarse5d);
@@ -346,7 +346,7 @@ int main (int argc, char ** argv)
// Warning: This routine calls PVdagM.Op, not PVdagM.HermOp
typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
Subspace V(Coarse5d,FGrid,cb);
Subspace U(Coarse5d,FGrid,cb);
// Subspace U(Coarse5d,FGrid,cb);
// Breeds right singular vectors with call to HermOp
V.CreateSubspaceChebyshev(RNG5,PVdagM,
@@ -359,7 +359,7 @@ int main (int argc, char ** argv)
// nbasis,
// 4000.0,0.003,
// 300);
U.subspace=V.subspace;
// U.subspace=V.subspace;
// typedef Aggregation<vSpinColourVector,vTComplex,2*nbasis> CombinedSubspace;
// CombinedSubspace CombinedUV(Coarse5d,FGrid,cb);
@@ -373,7 +373,7 @@ int main (int argc, char ** argv)
typedef GeneralCoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
typedef LittleDiracOperator::CoarseVector CoarseVector;
LittleDiracOperator LittleDiracOpPV(geom,FGrid,Coarse5d);
LittleDiracOpPV.CoarsenOperator(PVdagM,U,V);
LittleDiracOpPV.CoarsenOperator(PVdagM,V,V);
std::cout<<GridLogMessage<<std::endl;
std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
@@ -400,7 +400,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage<<"prom "<<norm2(prom)<<std::endl;
PVdagM.Op(prom,tmp);
blockProject(c_proj,tmp,U.subspace);
blockProject(c_proj,tmp,V.subspace);
std::cout<<GridLogMessage<<" Called Big Dirac Op "<<norm2(tmp)<<std::endl;
LittleDiracOpPV.M(c_src,c_res);
@@ -456,7 +456,7 @@ int main (int argc, char ** argv)
typedef MGPreconditionerSVD<vSpinColourVector, vTComplex,nbasis> TwoLevelMG;
// TwoLevelMG TwoLevelPrecon(CombinedUV,CombinedUV,
TwoLevelMG TwoLevelPrecon(U,V,
TwoLevelMG TwoLevelPrecon(V,V,
PVdagM,
simple_fine,
SmootherGCR,