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Fixes to fermion force terms after sign of gamma_mu (0...3) change.

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Thought I had already committed these.

Believe I have got the Gparity fermion force working.

* tests/Test_gpdwf_force.cc     -- correctly predicts dS for two flavour pseudofermion
                                   based on a small dt update of U field.

* tests/Test_hmc_EODWFRatio_Gparity.cc -- ran 1 trajectory on 8^4 with dH=0.21.

Need to accumulate a full plaquette log to believe fully which will take some hours of run time.
This commit is contained in:
paboyle
2015-12-15 23:14:12 +00:00
parent af855cc129
commit 34a0fde2ad
16 changed files with 625 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
tests/Make.inc
View File

@@ -1,5 +1,5 @@
bin_PROGRAMS = Test_GaugeAction Test_cayley_cg Test_cayley_coarsen_support Test_cayley_even_odd Test_cayley_ldop_cr Test_cf_coarsen_support Test_cf_cr_unprec Test_cheby Test_contfrac_cg Test_contfrac_even_odd Test_contfrac_force Test_cshift Test_cshift_red_black Test_dwf_cg_prec Test_dwf_cg_schur Test_dwf_cg_unprec Test_dwf_cr_unprec Test_dwf_even_odd Test_dwf_force Test_dwf_fpgcr Test_dwf_hdcr Test_dwf_lanczos Test_gamma Test_hmc_EODWFRatio Test_hmc_EOWilsonFermionGauge Test_hmc_EOWilsonRatio Test_hmc_WilsonFermionGauge Test_hmc_WilsonGauge Test_hmc_WilsonRatio Test_lie_generators Test_main Test_multishift_sqrt Test_nersc_io Test_partfrac_force Test_quenched_update Test_remez Test_rhmc_EOWilson1p1 Test_rhmc_EOWilsonRatio Test_rhmc_Wilson1p1 Test_rhmc_WilsonRatio Test_rng Test_rng_fixed Test_serialisation Test_simd Test_stencil Test_synthetic_lanczos Test_wilson_cg_prec Test_wilson_cg_schur Test_wilson_cg_unprec Test_wilson_cr_unprec Test_wilson_even_odd Test_wilson_force Test_wilson_force_phiMdagMphi Test_wilson_force_phiMphi
bin_PROGRAMS = Test_GaugeAction Test_cayley_cg Test_cayley_coarsen_support Test_cayley_even_odd Test_cayley_ldop_cr Test_cf_coarsen_support Test_cf_cr_unprec Test_cheby Test_contfrac_cg Test_contfrac_even_odd Test_contfrac_force Test_cshift Test_cshift_red_black Test_dwf_cg_prec Test_dwf_cg_schur Test_dwf_cg_unprec Test_dwf_cr_unprec Test_dwf_even_odd Test_dwf_force Test_dwf_fpgcr Test_dwf_gpforce Test_dwf_hdcr Test_dwf_lanczos Test_gamma Test_gparity Test_gpdwf_force Test_gpwilson_even_odd Test_hmc_EODWFRatio Test_hmc_EODWFRatio_Gparity Test_hmc_EOWilsonFermionGauge Test_hmc_EOWilsonRatio Test_hmc_WilsonFermionGauge Test_hmc_WilsonGauge Test_hmc_WilsonRatio Test_lie_generators Test_main Test_multishift_sqrt Test_nersc_io Test_partfrac_force Test_quenched_update Test_remez Test_rhmc_EOWilson1p1 Test_rhmc_EOWilsonRatio Test_rhmc_Wilson1p1 Test_rhmc_WilsonRatio Test_rng Test_rng_fixed Test_serialisation Test_simd Test_stencil Test_synthetic_lanczos Test_wilson_cg_prec Test_wilson_cg_schur Test_wilson_cg_unprec Test_wilson_cr_unprec Test_wilson_even_odd Test_wilson_force Test_wilson_force_phiMdagMphi Test_wilson_force_phiMphi
Test_GaugeAction_SOURCES=Test_GaugeAction.cc
@@ -82,6 +82,10 @@ Test_dwf_fpgcr_SOURCES=Test_dwf_fpgcr.cc
Test_dwf_fpgcr_LDADD=-lGrid
Test_dwf_gpforce_SOURCES=Test_dwf_gpforce.cc
Test_dwf_gpforce_LDADD=-lGrid
Test_dwf_hdcr_SOURCES=Test_dwf_hdcr.cc
Test_dwf_hdcr_LDADD=-lGrid
@@ -98,6 +102,10 @@ Test_gparity_SOURCES=Test_gparity.cc
Test_gparity_LDADD=-lGrid
Test_gpdwf_force_SOURCES=Test_gpdwf_force.cc
Test_gpdwf_force_LDADD=-lGrid
Test_gpwilson_even_odd_SOURCES=Test_gpwilson_even_odd.cc
Test_gpwilson_even_odd_LDADD=-lGrid
@@ -106,6 +114,10 @@ Test_hmc_EODWFRatio_SOURCES=Test_hmc_EODWFRatio.cc
Test_hmc_EODWFRatio_LDADD=-lGrid
Test_hmc_EODWFRatio_Gparity_SOURCES=Test_hmc_EODWFRatio_Gparity.cc
Test_hmc_EODWFRatio_Gparity_LDADD=-lGrid
Test_hmc_EOWilsonFermionGauge_SOURCES=Test_hmc_EOWilsonFermionGauge.cc
Test_hmc_EOWilsonFermionGauge_LDADD=-lGrid
@@ -225,10 +237,7 @@ Test_wilson_force_phiMdagMphi_LDADD=-lGrid
Test_wilson_force_phiMphi_SOURCES=Test_wilson_force_phiMphi.cc
Test_wilson_force_phiMphi_LDADD=-lGrid
Test_zmm_SOURCES=Test_zmm.cc
Test_zmm_LDADD=-lGrid
Test_RectPlaq_SOURCES=Test_RectPlaq.cc
Test_RectPlaq_LDADD=-lGrid

3
tests/Makefile.am
View File

@@ -8,5 +8,8 @@ endif
AM_CXXFLAGS = -I$(top_srcdir)/lib
AM_LDFLAGS = -L$(top_builddir)/lib
if BUILD_ZMM
bin_PROGRAMS=Test_zmm
endif
include Make.inc

191
tests/Test_dwf_gpforce.cc Normal file
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@@ -0,0 +1,191 @@
#include <Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
#define parallel_for PARALLEL_FOR_LOOP for
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
const int Ls=8;
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
typedef typename GparityDomainWallFermionR::FermionField FermionField;
int threads = GridThread::GetThreads();
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
std::vector<int> seeds({1,2,3,4});
GridParallelRNG RNG5(FGrid); RNG5.SeedRandomDevice();
GridParallelRNG RNG4(UGrid); RNG4.SeedRandomDevice();
FermionField phi (FGrid); gaussian(RNG5,phi);
FermionField Mphi (FGrid);
FermionField MphiPrime (FGrid);
LatticeGaugeField U(UGrid);
SU3::HotConfiguration(RNG4,U);
// SU3::ColdConfiguration(pRNG,U);
////////////////////////////////////
// Unmodified matrix element
////////////////////////////////////
RealD mass=0.2; //kills the diagonal term
RealD M5=1.8;
// const int nu = 3;
// std::vector<int> twists(Nd,0); // twists[nu] = 1;
// GparityDomainWallFermionR::ImplParams params; params.twists = twists;
// GparityDomainWallFermionR Ddwf(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,params);
// DomainWallFermionR Dw (U, Grid,RBGrid,mass,M5);
const int nu = 3;
std::vector<int> twists(Nd,0);
twists[nu] = 1;
GparityDomainWallFermionR::ImplParams params;
params.twists = twists;
GparityDomainWallFermionR Dw(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,params);
Dw.M (phi,Mphi);
ComplexD S = innerProduct(Mphi,Mphi); // pdag MdagM p
// get the deriv of phidag MdagM phi with respect to "U"
LatticeGaugeField UdSdU(UGrid);
LatticeGaugeField tmp(UGrid);
Dw.MDeriv(tmp , Mphi, phi,DaggerNo ); UdSdU=tmp;
Dw.MDeriv(tmp , phi, Mphi,DaggerYes ); UdSdU=(UdSdU+tmp);
FermionField Ftmp (FGrid);
////////////////////////////////////
// Modify the gauge field a little
////////////////////////////////////
RealD dt = 0.0001;
RealD Hmom = 0.0;
RealD Hmomprime = 0.0;
RealD Hmompp = 0.0;
LatticeColourMatrix mommu(UGrid);
LatticeColourMatrix forcemu(UGrid);
LatticeGaugeField mom(UGrid);
LatticeGaugeField Uprime(UGrid);
for(int mu=0;mu<Nd;mu++){
SU3::GaussianLieAlgebraMatrix(RNG4, mommu); // Traceless antihermitian momentum; gaussian in lie alg
Hmom -= real(sum(trace(mommu*mommu)));
PokeIndex<LorentzIndex>(mom,mommu,mu);
// fourth order exponential approx
parallel_for(auto i=mom.begin();i<mom.end();i++){
Uprime[i](mu) =
U[i](mu)
+ mom[i](mu)*U[i](mu)*dt
+ mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt/2.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt/6.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt/24.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt*dt/120.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt*dt*dt/720.0)
;
}
}
std::cout << GridLogMessage <<"Initial mom hamiltonian is "<< Hmom <<std::endl;
Dw.ImportGauge(Uprime);
Dw.M (phi,MphiPrime);
ComplexD Sprime = innerProduct(MphiPrime ,MphiPrime);
//////////////////////////////////////////////
// Use derivative to estimate dS
//////////////////////////////////////////////
for(int mu=0;mu<Nd;mu++){
std::cout << "" <<std::endl;
mommu = PeekIndex<LorentzIndex>(mom,mu);
std::cout << GridLogMessage<< " Mommu " << norm2(mommu)<<std::endl;
mommu = mommu+adj(mommu);
std::cout << GridLogMessage<< " Mommu + Mommudag " << norm2(mommu)<<std::endl;
mommu = PeekIndex<LorentzIndex>(UdSdU,mu);
std::cout << GridLogMessage<< " dsdumu " << norm2(mommu)<<std::endl;
mommu = mommu+adj(mommu);
std::cout << GridLogMessage<< " dsdumu + dag " << norm2(mommu)<<std::endl;
}
LatticeComplex dS(UGrid); dS = zero;
LatticeComplex dSmom(UGrid); dSmom = zero;
LatticeComplex dSmom2(UGrid); dSmom2 = zero;
for(int mu=0;mu<Nd;mu++){
mommu = PeekIndex<LorentzIndex>(UdSdU,mu);
mommu=Ta(mommu)*2.0;
PokeIndex<LorentzIndex>(UdSdU,mommu,mu);
}
for(int mu=0;mu<Nd;mu++){
mommu = PeekIndex<LorentzIndex>(mom,mu);
std::cout << GridLogMessage<< " Mommu " << norm2(mommu)<<std::endl;
mommu = mommu+adj(mommu);
std::cout << GridLogMessage<< " Mommu + Mommudag " << norm2(mommu)<<std::endl;
mommu = PeekIndex<LorentzIndex>(UdSdU,mu);
std::cout << GridLogMessage<< " dsdumu " << norm2(mommu)<<std::endl;
mommu = mommu+adj(mommu);
std::cout << GridLogMessage<< " dsdumu + dag " << norm2(mommu)<<std::endl;
}
for(int mu=0;mu<Nd;mu++){
forcemu = PeekIndex<LorentzIndex>(UdSdU,mu);
mommu = PeekIndex<LorentzIndex>(mom,mu);
// Update PF action density
dS = dS+trace(mommu*forcemu)*dt;
dSmom = dSmom - trace(mommu*forcemu) * dt;
dSmom2 = dSmom2 - trace(forcemu*forcemu) *(0.25* dt*dt);
// Update mom action density
mommu = mommu + forcemu*(dt*0.5);
Hmomprime -= real(sum(trace(mommu*mommu)));
}
Complex dSpred = sum(dS);
Complex dSm = sum(dSmom);
Complex dSm2 = sum(dSmom2);
std::cout << GridLogMessage <<"Initial mom hamiltonian is "<< Hmom <<std::endl;
std::cout << GridLogMessage <<"Final mom hamiltonian is "<< Hmomprime <<std::endl;
std::cout << GridLogMessage <<"Delta mom hamiltonian is "<< Hmomprime-Hmom <<std::endl;
std::cout << GridLogMessage << " S "<<S<<std::endl;
std::cout << GridLogMessage << " Sprime "<<Sprime<<std::endl;
std::cout << GridLogMessage << "dS "<<Sprime-S<<std::endl;
std::cout << GridLogMessage << "predict dS "<< dSpred <<std::endl;
std::cout << GridLogMessage <<"dSm "<< dSm<<std::endl;
std::cout << GridLogMessage <<"dSm2"<< dSm2<<std::endl;
std::cout << GridLogMessage << "Total dS "<< Hmomprime - Hmom + Sprime - S <<std::endl;
std::cout<< GridLogMessage << "Done" <<std::endl;
Grid_finalize();
}

5
tests/Test_gparity.cc
View File

@@ -13,8 +13,6 @@ int main (int argc, char ** argv)
Grid_init(&argc,&argv);
std::vector<int> twists(Nd,0);
twists[nu] = 1;
const int Ls=4;
const int L =4;
@@ -99,6 +97,9 @@ int main (int argc, char ** argv)
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
CG(HermOpEO,src_o_1f,result_o_1f);
// const int nu = 3;
std::vector<int> twists(Nd,0);
twists[nu] = 1;
GparityDomainWallFermionR::ImplParams params;
params.twists = twists;
GparityDomainWallFermionR GPDdwf(Umu_2f,*FGrid_2f,*FrbGrid_2f,*UGrid_2f,*UrbGrid_2f,mass,M5,params);

179
tests/Test_gpdwf_force.cc Normal file
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@@ -0,0 +1,179 @@
#include <Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
#define parallel_for PARALLEL_FOR_LOOP for
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
const int Ls=8;
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
std::vector<int> seeds4({1,2,3,4});
std::vector<int> seeds5({5,6,7,8});
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
int threads = GridThread::GetThreads();
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
typedef typename GparityDomainWallFermionR::FermionField FermionField;
FermionField phi (FGrid); gaussian(RNG5,phi);
FermionField Mphi (FGrid);
FermionField MphiPrime (FGrid);
LatticeGaugeField U(UGrid);
SU3::HotConfiguration(RNG4,U);
////////////////////////////////////
// Unmodified matrix element
////////////////////////////////////
RealD mass=0.01;
RealD M5=1.8;
const int nu = 3;
std::vector<int> twists(Nd,0); twists[nu] = 1;
GparityDomainWallFermionR::ImplParams params; params.twists = twists;
GparityDomainWallFermionR Ddwf(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,params);
Ddwf.M (phi,Mphi);
ComplexD S = innerProduct(Mphi,Mphi); // pdag MdagM p
// get the deriv of phidag MdagM phi with respect to "U"
LatticeGaugeField UdSdU(UGrid);
LatticeGaugeField tmp(UGrid);
Ddwf.MDeriv(tmp , Mphi, phi,DaggerNo ); UdSdU=tmp;
Ddwf.MDeriv(tmp , phi, Mphi,DaggerYes ); UdSdU=(UdSdU+tmp);
FermionField Ftmp (FGrid);
////////////////////////////////////
// Modify the gauge field a little
////////////////////////////////////
RealD dt = 0.001;
LatticeColourMatrix mommu(UGrid);
LatticeColourMatrix forcemu(UGrid);
LatticeGaugeField mom(UGrid);
LatticeGaugeField Uprime(UGrid);
for(int mu=0;mu<Nd;mu++){
SU3::GaussianLieAlgebraMatrix(RNG4, mommu); // Traceless antihermitian momentum; gaussian in lie alg
PokeIndex<LorentzIndex>(mom,mommu,mu);
// fourth order exponential approx
parallel_for(auto i=mom.begin();i<mom.end();i++){
Uprime[i](mu) =
U[i](mu)
+ mom[i](mu)*U[i](mu)*dt
+ mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt/2.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt/6.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt/24.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt*dt/120.0)
+ mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *mom[i](mu) *U[i](mu)*(dt*dt*dt*dt*dt*dt/720.0)
;
}
}
Ddwf.ImportGauge(Uprime);
Ddwf.M (phi,MphiPrime);
ComplexD Sprime = innerProduct(MphiPrime ,MphiPrime);
//////////////////////////////////////////////
// Use derivative to estimate dS
//////////////////////////////////////////////
LatticeComplex dS(UGrid); dS = zero;
for(int mu=0;mu<Nd;mu++){
mommu = PeekIndex<LorentzIndex>(UdSdU,mu);
mommu=Ta(mommu)*2.0;
PokeIndex<LorentzIndex>(UdSdU,mommu,mu);
}
for(int mu=0;mu<Nd;mu++){
forcemu = PeekIndex<LorentzIndex>(UdSdU,mu);
mommu = PeekIndex<LorentzIndex>(mom,mu);
// Update PF action density
dS = dS+trace(mommu*forcemu)*dt;
}
Complex dSpred = sum(dS);
// From TwoFlavourPseudoFermion:
//////////////////////////////////////////////////////
// dS/du = - phi^dag (Mdag M)^-1 [ Mdag dM + dMdag M ] (Mdag M)^-1 phi
// = - phi^dag M^-1 dM (MdagM)^-1 phi - phi^dag (MdagM)^-1 dMdag dM (Mdag)^-1 phi
//
// = - Ydag dM X - Xdag dMdag Y
//
//////////////////////////////////////////////////////
// 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.
//
// When we have Gparity -- U and Uconj enter.
//
// dU/dt = p U
// dUc/dt = p* Uc // Is p real, traceless, etc..
//
// dS/dt = dUdt dSdU = p U dSdU
//
// Gparity --- deriv is pc Uc dSdUc + p U dSdU
//
// Pmu = zero;
// for(int mu=0;mu<Nd;mu++){
// SU<Ncol>::GaussianLieAlgebraMatrix(pRNG, Pmu);
// PokeIndex<LorentzIndex>(P, Pmu, mu);
// }
//
//
// GridBase *grid = out._grid;
// LatticeReal ca (grid);
// LatticeMatrix la (grid);
// Complex ci(0.0,scale);
// Matrix ta;
// out=zero;
// for(int a=0;a<generators();a++){
// gaussian(pRNG,ca);
// generator(a,ta);
// la=toComplex(ca)*ci*ta; // i t_a Lambda_a c_a // c_a is gaussian
// out += la;
// }
// p = sum_a i gauss_a t_a
//
// dU = p U dt
//
// dUc = p^c Uc dt = -i gauss_a t_a^c Uc
//
//
// For Gparity the dS /dt from Uc links
//
std::cout << GridLogMessage << " S "<<S<<std::endl;
std::cout << GridLogMessage << " Sprime "<<Sprime<<std::endl;
std::cout << GridLogMessage << "dS "<<Sprime-S<<std::endl;
std::cout << GridLogMessage << "predict dS "<< dSpred <<std::endl;
std::cout<< GridLogMessage << "Done" <<std::endl;
Grid_finalize();
}

5
tests/Test_gpwilson_even_odd.cc
View File

@@ -52,7 +52,10 @@ int main (int argc, char ** argv)
RealD mass=0.1;
GparityWilsonFermionR Dw(Umu,Grid,RBGrid,mass);
GparityWilsonFermionR::ImplParams params;
std::vector<int> twists(Nd,0); twists[1] = 1;
params.twists = twists;
GparityWilsonFermionR Dw(Umu,Grid,RBGrid,mass,params);
FermionField src_e (&RBGrid);
FermionField src_o (&RBGrid);

70
tests/Test_hmc_EODWFRatio_Gparity.cc Normal file
View File

@@ -0,0 +1,70 @@
#include "Grid.h"
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
const int Ls = 8;
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
GridSerialRNG sRNG;
GridParallelRNG pRNG(UGrid);
sRNG.SeedRandomDevice();
pRNG.SeedRandomDevice();
LatticeLorentzColourMatrix U(UGrid);
SU3::HotConfiguration(pRNG, U);
// simplify template declaration? Strip the lorentz from the second template
WilsonGaugeActionR Waction(5.6);
Real mass=0.04;
Real pv =1.0;
RealD M5=1.5;
typedef typename GparityDomainWallFermionR::FermionField FermionField;
const int nu = 3;
std::vector<int> twists(Nd,0);
twists[nu] = 1;
GparityDomainWallFermionR::ImplParams params;
params.twists = twists;
GparityDomainWallFermionR DenOp(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,params);
GparityDomainWallFermionR NumOp(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,pv,M5,params);
ConjugateGradient<FermionField> CG(1.0e-8,10000);
TwoFlavourEvenOddRatioPseudoFermionAction<GparityWilsonImplR> Nf2(NumOp, DenOp,CG,CG);
//Collect actions
ActionLevel<LatticeGaugeField> Level1;
Level1.push_back(&Nf2);
Level1.push_back(&Waction);
ActionSet<LatticeGaugeField> FullSet;
FullSet.push_back(Level1);
// Create integrator
typedef MinimumNorm2<LatticeGaugeField> IntegratorType;// change here to change the algorithm
IntegratorParameters MDpar(20);
IntegratorType MDynamics(UGrid,MDpar, FullSet);
// Create HMC
HMCparameters HMCpar;
HybridMonteCarlo<LatticeGaugeField,IntegratorType> HMC(HMCpar, MDynamics,sRNG,pRNG);
// Run it
HMC.evolve(U);
}