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creating the necessary caches for the FFT EM scalar propagator

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This commit is contained in:
Antonin Portelli
2017-01-11 18:40:43 +00:00
parent fc760016b3
commit ad98b6193d
2 changed files with 74 additions and 4 deletions
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68
extras/Hadrons/Modules/MScalar/ChargedProp.cc
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@@ -1,4 +1,5 @@
#include <Grid/Hadrons/Modules/MScalar/ChargedProp.hpp>
#include <Grid/Hadrons/Modules/MScalar/Scalar.hpp>
using namespace Grid;
using namespace Hadrons;
@@ -15,7 +16,7 @@ TChargedProp::TChargedProp(const std::string name)
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TChargedProp::getInput(void)
{
std::vector<std::string> in;
std::vector<std::string> in = {par().source, par().emField};
return in;
}
@@ -30,11 +31,72 @@ std::vector<std::string> TChargedProp::getOutput(void)
// setup ///////////////////////////////////////////////////////////////////////
void TChargedProp::setup(void)
{
freeMomPropName_ = FREEMOMPROP(par().mass);
shiftedMomPropName_.clear();
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
shiftedMomPropName_.push_back(freeMomPropName_ + "_"
+ std::to_string(mu));
}
if (!env().hasRegisteredObject(freeMomPropName_))
{
env().registerLattice<ScalarField>(freeMomPropName_);
}
if (!env().hasRegisteredObject(shiftedMomPropName_[0]))
{
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
env().registerLattice<ScalarField>(shiftedMomPropName_[mu]);
}
}
env().registerLattice<ScalarField>(getName());
}
// execution ///////////////////////////////////////////////////////////////////
void TChargedProp::execute(void)
{
ScalarField &prop = *env().createLattice<ScalarField>(getName());
ScalarField &source = *env().getObject<ScalarField>(par().source);
ScalarField *freeMomProp;
std::vector<ScalarField *> shiftedMomProp;
Complex ci(0.0,1.0);
if (!env().hasCreatedObject(freeMomPropName_))
{
LOG(Message) << "Caching momentum space free scalar propagator"
<< " (mass= " << par().mass << ")..." << std::endl;
freeMomProp = env().createLattice<ScalarField>(freeMomPropName_);
Scalar<SIMPL>::MomentumSpacePropagator(*freeMomProp, par().mass);
}
else
{
freeMomProp = env().getObject<ScalarField>(freeMomPropName_);
}
if (!env().hasCreatedObject(shiftedMomPropName_[0]))
{
std::vector<int> &l = env().getGrid()->_fdimensions;
LOG(Message) << "Caching shifted momentum space free scalar propagator"
<< " (mass= " << par().mass << ")..." << std::endl;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Real twoPiL = M_PI*2./l[mu];
shiftedMomProp.push_back(
env().createLattice<ScalarField>(shiftedMomPropName_[mu]));
LatticeCoordinate(*(shiftedMomProp[mu]), mu);
*(shiftedMomProp[mu]) = exp(ci*twoPiL*(*(shiftedMomProp[mu])))
*(*freeMomProp);
}
}
else
{
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
shiftedMomProp.push_back(
env().getObject<ScalarField>(shiftedMomPropName_[mu]));
}
}
}

10
extras/Hadrons/Modules/MScalar/ChargedProp.hpp
View File

@@ -16,11 +16,16 @@ class ChargedPropPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(ChargedPropPar,
unsigned int, i);
std::string, emField,
std::string, source,
double, mass,
std::string, output);
};
class TChargedProp: public Module<ChargedPropPar>
{
public:
SCALAR_TYPE_ALIASES(SIMPL,);
public:
// constructor
TChargedProp(const std::string name);
@@ -33,6 +38,9 @@ public:
virtual void setup(void);
// execution
virtual void execute(void);
private:
std::string freeMomPropName_;
std::vector<std::string> shiftedMomPropName_;
};
MODULE_REGISTER_NS(ChargedProp, TChargedProp, MScalar);