portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-13 04:37:05 +01:00
Code Releases Activity

HMC for Adjoint fermions works

Browse Source 
Accepts and reproduces known results

Check initial instability of inverters
when starting from hot configurations
This commit is contained in:
Guido Cossu
2016-08-30 11:31:25 +01:00
parent 9c2e8d5e28
commit b512ccbee6
8 changed files with 45 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
lib/qcd/action/pseudofermion/TwoFlavour.h
View File

@ -130,32 +130,9 @@ class TwoFlavourPseudoFermionAction : public Action<typename Impl::GaugeField> {
MdagMLinearOperator<FermionOperator<Impl>, FermionField> MdagMOp(FermOp);
X = zero;
DerivativeSolver(MdagMOp, Phi, X); // X = (MdagM)^-1 phi
DerivativeSolver(MdagMOp, Phi, X); // X = (MdagM)^-1 phi
MdagMOp.Op(X, Y); // Y = M X = (Mdag)^-1 phi
// Check hermiticity
std::vector<int> seeds({1,2,3,4});
GridParallelRNG RNG(U._grid); RNG.SeedFixedIntegers(seeds);
FermionField RNGphi(FermOp.FermionGrid());
FermionField RNGchi(FermOp.FermionGrid());
FermionField Achi(FermOp.FermionGrid());
FermionField Aphi(FermOp.FermionGrid());
random(RNG, RNGphi);
random(RNG, RNGchi);
MdagMOp.HermOp(RNGchi, Achi);
MdagMOp.HermOp(RNGphi, Aphi);
ComplexD pAc = innerProduct(RNGphi, Achi);
ComplexD cAp = innerProduct(RNGchi, Aphi);
//these should be real
ComplexD pAp = innerProduct(RNGphi, Aphi);
ComplexD cAc = innerProduct(RNGchi, Achi);
std::cout<<GridLogMessage<< "pAc "<<pAc<<" cAp "<< cAp<< " diff "<<pAc-adj(cAp)<<std::endl;
// These ones should be real
std::cout << GridLogMessage << "pAp " << pAp << " cAc " << cAc << std::endl;
// Our conventions really make this UdSdU; We do not differentiate wrt Udag
// here.
// So must take dSdU - adj(dSdU) and left multiply by mom to get dS/dt.