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Debugging the Smearing routines

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This commit is contained in:
Guido Cossu
2016-04-05 16:19:30 +09:00
parent 2d8bb356e3
commit 4b1cf580e0
10 changed files with 118 additions and 67 deletions
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1
lib/qcd/action/ActionBase.h
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@@ -35,6 +35,7 @@ template<class GaugeField>
class Action {
public:
bool is_smeared = false;
// Boundary conditions? // Heatbath?
virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) = 0;// refresh pseudofermions
virtual RealD S (const GaugeField &U) = 0; // evaluate the action

2
lib/qcd/hmc/HMC.h
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@@ -160,7 +160,7 @@ namespace Grid{
/////////////////////////////////////////
// Constructor
/////////////////////////////////////////
HybridMonteCarlo(HMCparameters Pms, IntegratorType &_Int, GridSerialRNG &_sRNG, GridParallelRNG &_pRNG, GaugeField &_U ) :
HybridMonteCarlo(HMCparameters Pms, IntegratorType &_Int, GridSerialRNG &_sRNG, GridParallelRNG &_pRNG, GaugeField &_U) :
Params(Pms),
TheIntegrator(_Int),
sRNG(_sRNG),

29
lib/qcd/hmc/HmcRunner.h
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@@ -81,10 +81,21 @@ public:
NumTraj = ivec[0];
}
// Create integrator
typedef MinimumNorm2<GaugeField> IntegratorType;// change here to change the algorithm
GridSerialRNG sRNG;
GridParallelRNG pRNG(UGrid);
LatticeGaugeField U(UGrid); // change this to an extended field (smearing class)
std::vector<int> SerSeed({1,2,3,4,5});
std::vector<int> ParSeed({6,7,8,9,10});
// Create integrator, including the smearing policy
SmearedConfiguration<Gimpl> SmearingPolicy; // simplest empty smearer, construct here more complex smearers
typedef MinimumNorm2<GaugeField, SmearedConfiguration<Gimpl> > IntegratorType;// change here to change the algorithm
IntegratorParameters MDpar(20);
IntegratorType MDynamics(UGrid,MDpar, TheAction);
IntegratorType MDynamics(UGrid, MDpar, TheAction, SmearingPolicy);
// Checkpoint strategy
NerscHmcCheckpointer<Gimpl> Checkpoint(std::string("ckpoint_lat"),std::string("ckpoint_rng"),1);
@@ -94,12 +105,6 @@ public:
HMCpar.StartTrajectory = StartTraj;
HMCpar.Trajectories = NumTraj;
GridSerialRNG sRNG;
GridParallelRNG pRNG(UGrid);
LatticeGaugeField U(UGrid); // change this to an extended field (smearing class)
std::vector<int> SerSeed({1,2,3,4,5});
std::vector<int> ParSeed({6,7,8,9,10});
if ( StartType == HotStart ) {
// Hot start
@@ -129,7 +134,11 @@ public:
Checkpoint.CheckpointRestore(StartTraj, U, sRNG, pRNG);
}
HybridMonteCarlo<GaugeField,IntegratorType> HMC(HMCpar, MDynamics,sRNG,pRNG,U); // pass the extended field
// Attach the gauge field to the smearing Policy and create the fill the smeared set
// notice that the unit configuration is singular in this procedure
SmearingPolicy.set_GaugeField(U);
HybridMonteCarlo<GaugeField,IntegratorType> HMC(HMCpar, MDynamics,sRNG,pRNG,U);
HMC.AddObservable(&Checkpoint);
HMC.AddObservable(&PlaqLog);

27
lib/qcd/hmc/integrators/Integrator.h
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@@ -68,7 +68,7 @@ namespace Grid{
};
/*! @brief Class for Molecular Dynamics management */
template<class GaugeField>
template<class GaugeField, class SmearingPolicy>
class Integrator {
protected:
@@ -85,6 +85,8 @@ namespace Grid{
GaugeField P;
SmearingPolicy &Smearer;
// Should match any legal (SU(n)) gauge field
// Need to use this template to match Ncol to pass to SU<N> class
template<int Ncol,class vec> void generate_momenta(Lattice< iVector< iScalar< iMatrix<vec,Ncol> >, Nd> > & P,GridParallelRNG& pRNG){
@@ -113,7 +115,9 @@ namespace Grid{
void update_P(GaugeField &Mom,GaugeField&U, int level,double ep){
for(int a=0; a<as[level].actions.size(); ++a){
GaugeField force(U._grid);
as[level].actions.at(a)->deriv(U,force);
as[level].actions.at(a)->deriv(U,force); // deriv should not include Ta
if (as[level].actions.at(a)->is_smeared) Smearer.smeared_force(force);
force = Ta(force);
Mom = Mom - force*ep;
}
}
@@ -137,6 +141,8 @@ namespace Grid{
ProjectOnGroup(Umu);
PokeIndex<LorentzIndex>(U, Umu, mu);
}
// Update the smeared fields, can be implemented as observer
Smearer.set_GaugeField(U);
}
virtual void step (GaugeField& U,int level, int first,int last)=0;
@@ -145,14 +151,17 @@ namespace Grid{
Integrator(GridBase* grid,
IntegratorParameters Par,
ActionSet<GaugeField> & Aset):
ActionSet<GaugeField> & Aset,
SmearingPolicy &Sm):
Params(Par),
as(Aset),
P(grid),
levels(Aset.size())
levels(Aset.size()),
Smearer(Sm)
{
t_P.resize(levels,0.0);
t_U=0.0;
// initialization of smearer delegated outside of Integrator
};
virtual ~Integrator(){}
@@ -163,7 +172,10 @@ namespace Grid{
generate_momenta(P,pRNG);
for(int level=0; level< as.size(); ++level){
for(int actionID=0; actionID<as[level].actions.size(); ++actionID){
as[level].actions.at(actionID)->refresh(U, pRNG);
// get gauge field from the SmearingPolicy and
// based on the boolean is_smeared in actionID
GaugeField& Us = Smearer.get_U(as[level].actions.at(actionID)->is_smeared);
as[level].actions.at(actionID)->refresh(Us, pRNG);
}
}
}
@@ -186,7 +198,10 @@ namespace Grid{
// Actions
for(int level=0; level<as.size(); ++level){
for(int actionID=0; actionID<as[level].actions.size(); ++actionID){
Hterm = as[level].actions.at(actionID)->S(U);
// get gauge field from the SmearingPolicy and
// based on the boolean is_smeared in actionID
GaugeField& Us = Smearer.get_U(as[level].actions.at(actionID)->is_smeared);
Hterm = as[level].actions.at(actionID)->S(Us);
std::cout<<GridLogMessage << "Level "<<level<<" term "<<actionID<<" H = "<<Hterm<<std::endl;
H += Hterm;
}

23
lib/qcd/hmc/integrators/Integrator_algorithm.h
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@@ -91,14 +91,17 @@ namespace Grid{
* P 1/2 P 1/2
*/
template<class GaugeField> class LeapFrog : public Integrator<GaugeField> {
template<class GaugeField, class SmearingPolicy> class LeapFrog :
public Integrator<GaugeField, SmearingPolicy> {
public:
typedef LeapFrog<GaugeField> Algorithm;
typedef LeapFrog<GaugeField, SmearingPolicy> Algorithm;
LeapFrog(GridBase* grid,
IntegratorParameters Par,
ActionSet<GaugeField> & Aset): Integrator<GaugeField>(grid,Par,Aset) {};
ActionSet<GaugeField> & Aset,
SmearingPolicy & Sm):
Integrator<GaugeField, SmearingPolicy>(grid,Par,Aset,Sm) {};
void step (GaugeField& U, int level,int _first, int _last){
@@ -135,7 +138,8 @@ namespace Grid{
}
};
template<class GaugeField> class MinimumNorm2 : public Integrator<GaugeField> {
template<class GaugeField, class SmearingPolicy> class MinimumNorm2 :
public Integrator<GaugeField, SmearingPolicy> {
private:
const RealD lambda = 0.1931833275037836;
@@ -143,7 +147,9 @@ namespace Grid{
MinimumNorm2(GridBase* grid,
IntegratorParameters Par,
ActionSet<GaugeField> & Aset): Integrator<GaugeField>(grid,Par,Aset) {};
ActionSet<GaugeField> & Aset,
SmearingPolicy& Sm):
Integrator<GaugeField, SmearingPolicy>(grid,Par,Aset,Sm) {};
void step (GaugeField& U, int level, int _first,int _last){
@@ -191,7 +197,8 @@ namespace Grid{
};
template<class GaugeField> class ForceGradient : public Integrator<GaugeField> {
template<class GaugeField, class SmearingPolicy> class ForceGradient :
public Integrator<GaugeField, SmearingPolicy> {
private:
const RealD lambda = 1.0/6.0;;
const RealD chi = 1.0/72.0;
@@ -202,7 +209,9 @@ namespace Grid{
// Looks like dH scales as dt^4. tested wilson/wilson 2 level.
ForceGradient(GridBase* grid,
IntegratorParameters Par,
ActionSet<GaugeField> & Aset): Integrator<GaugeField>(grid,Par,Aset) {};
ActionSet<GaugeField> & Aset,
SmearingPolicy &Sm):
Integrator<GaugeField, SmearingPolicy>(grid,Par,Aset, Sm) {};
void FG_update_P(GaugeField&U, int level,double fg_dt,double ep){

11
lib/qcd/smearing/APEsmearing.h
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@@ -35,21 +35,22 @@ namespace Grid {
Smear_APE():rho(set_rho(1.0)){}
~Smear_APE(){}
void smear(GaugeField& u_smr, const GaugeField& U)const{
GridBase *grid = U._grid;
double d_rho;
GaugeLinkField Cup(grid), tmp_stpl(grid);
WilsonLoops<Gimpl> WL;
u_smr = zero; // probably unecessary
u_smr = zero;
for(int mu=0; mu<Nd; ++mu){
Cup = zero;
for(int nu=0; nu<Nd; ++nu){
d_rho = rho[mu + Nd * nu];
// get the staple in direction mu, nu
WL.Staple(tmp_stpl, U, mu, nu); //nb staple conventions of IroIro and Grid differ by a dag
Cup += tmp_stpl*d_rho;
}
// save the Cup link-field on the u_smr gauge-field
pokeLorentz(u_smr, adj(Cup), mu); // u_smr[mu] = Cup^dag
}
}
@@ -66,8 +67,10 @@ namespace Grid {
int vol = U._grid->gSites();
WilsonLoops<Gimpl> WL;
GaugeLinkField staple(grid), u_tmp(grid), iLambda_mu(grid), iLambda_nu(grid);
GaugeLinkField U_mu(grid), U_nu(grid), sh_field(grid), temp_Sigma(grid);
GaugeLinkField staple(grid), u_tmp(grid);
GaugeLinkField iLambda_mu(grid), iLambda_nu(grid);
GaugeLinkField U_mu(grid), U_nu(grid);
GaugeLinkField sh_field(grid), temp_Sigma(grid);
Real rho_munu, rho_numu;
for(int mu = 0; mu < Nd; ++mu){

2
lib/qcd/smearing/BaseSmearing.h
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@@ -7,7 +7,7 @@
template <class Gimpl>
class Smear{
public:
INHERIT_GIMPL_TYPES(Gimpl)
INHERIT_GIMPL_TYPES(Gimpl) // inherits the types for the gauge fields
virtual ~Smear(){}
virtual void smear (GaugeField&,const GaugeField&)const = 0;

64
lib/qcd/smearing/GaugeConfiguration.h
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@@ -22,7 +22,7 @@ namespace Grid {
It stores a list of smeared configurations.
*/
template <class Gimpl>
class SmearedConfiguration {
class SmearedConfiguration {
public:
INHERIT_GIMPL_TYPES(Gimpl) ;
@@ -33,17 +33,23 @@ namespace Grid {
// Member functions
//====================================================================
void fill_smearedSet(){
GaugeField previous_u;
void fill_smearedSet(GaugeField& U){
ThinLinks = &U; //attach the smearing routine to the field U
//check that the pointer is not null
if (ThinLinks==NULL)
std::cout << GridLogError << "[SmearedConfiguration] Error in ThinLinks pointer\n";
std::cout<< GridLogDebug << "[SmearedConfiguration] Filling SmearedSet\n";
if (smearingLevels > 0){
GaugeField previous_u(U._grid);
std::cout<< GridLogDebug << "[SmearedConfiguration] Filling SmearedSet\n";
previous_u = *ThinLinks;
for(int smearLvl = 0; smearLvl < smearingLevels; ++smearLvl){
StoutSmearing.smear(SmearedSet[smearLvl],previous_u);
previous_u = SmearedSet[smearLvl];
}
previous_u = *ThinLinks;
for(int smearLvl = 0; smearLvl < smearingLevels; ++smearLvl){
StoutSmearing.smear(SmearedSet[smearLvl],previous_u);
previous_u = SmearedSet[smearLvl];
}
}
//====================================================================
GaugeField AnalyticSmearedForce(const GaugeField& SigmaKPrime,
@@ -86,9 +92,9 @@ namespace Grid {
LatticeReal u(grid), w(grid);
LatticeComplex f0(grid), f1(grid), f2(grid);
LatticeReal xi0(grid), xi1(grid), fden(grid), tmp(grid);
LatticeReal xi0(grid), xi1(grid), tmp(grid);
LatticeReal u2(grid), w2(grid), cosw(grid);
LatticeComplex emiu(grid), e2iu(grid), qt(grid);
LatticeComplex emiu(grid), e2iu(grid), qt(grid), fden(grid);
LatticeComplex r01(grid), r11(grid), r21(grid), r02(grid), r12(grid);
LatticeComplex r22(grid), tr1(grid), tr2(grid);
LatticeComplex b10(grid), b11(grid), b12(grid), b20(grid), b21(grid), b22(grid);
@@ -173,31 +179,34 @@ namespace Grid {
links configuration */
/*! @brief Standard constructor */
SmearedConfiguration(GridCartesian * UGrid,
unsigned int Nsmear,
Smear_Stout<Gimpl>& Stout):
smearingLevels(Nsmear),
SmearedConfiguration(GridCartesian * UGrid,
unsigned int Nsmear,
Smear_Stout<Gimpl>& Stout):
smearingLevels(Nsmear),
StoutSmearing(Stout),
ThinLinks(new GaugeField(UGrid)){
ThinLinks(NULL){
for (unsigned int i=0; i< smearingLevels; ++i)
SmearedSet.push_back(*(new GaugeField(UGrid)));
}
/*! For just thin links */
SmearedConfiguration(GridCartesian * UGrid):
smearingLevels(0),
SmearedConfiguration():
smearingLevels(0),
StoutSmearing(),
SmearedSet(0),
ThinLinks(new GaugeField(UGrid)){}
SmearedSet(),
ThinLinks(NULL){}
// attach the smeared routines to the thin links U and fill the smeared set
void set_GaugeField(GaugeField& U){ fill_smearedSet(U);}
void set_GaugeField(){ fill_smearedSet(); }
void smeared_force(GaugeField& SigmaTilde) const{
GaugeField force = SigmaTilde;//actually = U*SigmaTilde, check this for Grid
GaugeLinkField tmp_mu(SigmaTilde._grid);
for (int mu = 0; mu < Nd; mu++){
tmp_mu = adj(peekLorentz(SmearedSet[smearingLevels-1], mu)) * peekLorentz(force,mu);
pokeLorentz(force, tmp_mu, mu);
pokeLorentz(force, tmp_mu, mu);
}
for(int ismr = smearingLevels - 1; ismr > 0; --ismr)
force = AnalyticSmearedForce(force,get_smeared_conf(ismr-1));
@@ -211,17 +220,17 @@ namespace Grid {
}
GaugeField* get_SmearedU() const{
return const_cast<GaugeField*>(&(SmearedSet[smearingLevels-1]));
GaugeField& get_SmearedU(){
return SmearedSet[smearingLevels-1];
}
GaugeField* get_U(bool smeared=false) const {
GaugeField& get_U(bool smeared=false) {
// get the config, thin links by default
if (smeared){
if (smearingLevels) return get_SmearedU();
else return ThinLinks;
else return *ThinLinks;
}
else return ThinLinks;
else return *ThinLinks;
}
};
@@ -235,4 +244,5 @@ namespace Grid {
#endif

8
lib/qcd/smearing/StoutSmearing.h
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@@ -20,10 +20,14 @@ namespace Grid {
public:
INHERIT_GIMPL_TYPES(Gimpl)
Smear_Stout(Smear < Gimpl >* base):SmearBase(base){}
Smear_Stout(Smear < Gimpl >* base):SmearBase(base){
static_assert(Nc==3, "Stout smearing currently implemented only for Nc==3");
}
/*! Default constructor */
Smear_Stout():SmearBase(new Smear_APE < Gimpl > ()){}
Smear_Stout():SmearBase(new Smear_APE < Gimpl > ()){
static_assert(Nc==3, "Stout smearing currently implemented only for Nc==3");
}
~Smear_Stout(){}

2
tests/Test_main.cc
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@@ -608,7 +608,7 @@ int main (int argc, char ** argv)
// Testing Smearing routine compilation
// Testing Smearing routine compilation, separate in a different file
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
Smear_APE< PeriodicGimplR > APEsmearing; // periodic gauge implemetation
Smear_Stout< PeriodicGimplR > StoutSmearing(&APEsmearing);