portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2024-11-10 07:55:35 +00:00
Code Releases Activity

Hadrons: modules for testing conserved current contractions and sequential insertion.

Browse Source
This commit is contained in:
Lanny91 2017-04-25 22:08:33 +01:00
parent 44260643f6
commit dc5a6404ea
5 changed files with 403 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
extras/Hadrons/Modules.hpp
View File

@ -32,6 +32,8 @@ See the full license in the file "LICENSE" in the top level distribution directo
#include <Grid/Hadrons/Modules/MContraction/DiscLoop.hpp>
#include <Grid/Hadrons/Modules/MContraction/Gamma3pt.hpp>
#include <Grid/Hadrons/Modules/MContraction/Meson.hpp>
#include <Grid/Hadrons/Modules/MContraction/WardIdentity.hpp>
#include <Grid/Hadrons/Modules/MContraction/WardIdentitySeq.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp>
@ -42,6 +44,7 @@ See the full license in the file "LICENSE" in the top level distribution directo
#include <Grid/Hadrons/Modules/MLoop/NoiseLoop.hpp>
#include <Grid/Hadrons/Modules/MSolver/RBPrecCG.hpp>
#include <Grid/Hadrons/Modules/MSource/Point.hpp>
#include <Grid/Hadrons/Modules/MSource/SeqConserved.hpp>
#include <Grid/Hadrons/Modules/MSource/SeqGamma.hpp>
#include <Grid/Hadrons/Modules/MSource/Wall.hpp>
#include <Grid/Hadrons/Modules/MSource/Z2.hpp>

151
extras/Hadrons/Modules/MContraction/WardIdentity.hpp Normal file
View File

@ -0,0 +1,151 @@
#ifndef Hadrons_WardIdentity_hpp_
#define Hadrons_WardIdentity_hpp_
#include <Grid/Hadrons/Global.hpp>
#include <Grid/Hadrons/Module.hpp>
#include <Grid/Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
Ward Identity contractions
-----------------------------
* options:
- q: propagator, 5D if available (string)
- q4d: 4D propagator, duplicate of q if q is not 5D (string)
- action: action module used for propagator solution (string)
- mass: mass of quark (double)
*/
/******************************************************************************
* WardIdentity *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
class WardIdentityPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(WardIdentityPar,
std::string, q,
std::string, q4d,
std::string, action,
double, mass);
};
template <typename FImpl>
class TWardIdentity: public Module<WardIdentityPar>
{
public:
TYPE_ALIASES(FImpl,);
public:
// constructor
TWardIdentity(const std::string name);
// destructor
virtual ~TWardIdentity(void) = default;
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
private:
unsigned int Ls_;
};
MODULE_REGISTER_NS(WardIdentity, TWardIdentity<FIMPL>, MContraction);
/******************************************************************************
* TWardIdentity implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TWardIdentity<FImpl>::TWardIdentity(const std::string name)
: Module<WardIdentityPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TWardIdentity<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().q, par().q4d, par().action};
return in;
}
template <typename FImpl>
std::vector<std::string> TWardIdentity<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentity<FImpl>::setup(void)
{
Ls_ = env().getObjectLs(par().q);
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentity<FImpl>::execute(void)
{
LOG(Message) << "Performing Ward Identity checks for quark '" << par().q
<< "'." << std::endl;
PropagatorField psi(env().getGrid()), tmp(env().getGrid());
PropagatorField q = *env().template getObject<PropagatorField>(par().q);
PropagatorField q4d = *env().template getObject<PropagatorField>(par().q4d);
FMat &act = *(env().template getObject<FMat>(par().action));
Gamma g5(Gamma::Algebra::Gamma5);
LatticeComplex PP(env().getGrid()), PA(env().getGrid()),
c(env().getGrid()), PJ5q(env().getGrid()),
vector_WI(env().getGrid()), defect(env().getGrid());
c = zero; PJ5q = zero; vector_WI = zero; defect = zero;
std::vector<LatticeComplex> Vmu(Nd, c);
std::vector<LatticeComplex> Amu(Nd, c);
// Get PP, PA, V_mu, A_mu for 4D.
PP = trace(adj(q4d)*q4d);
PA = trace(adj(q4d)*g5*q4d);
for (unsigned int mu = 0; mu < Nd; ++mu)
{
act.ContractConservedCurrent(q, q, tmp, Current::Vector, mu);
Vmu[mu] = trace(g5*tmp);
act.ContractConservedCurrent(q, q, tmp, Current::Axial, mu);
Amu[mu] = trace(g5*tmp);
}
// Get PJ5q for 5D (zero for 4D).
if (Ls_ > 1)
{
ExtractSlice(psi, q, 0, Ls_/2 - 1);
psi = 0.5 * (psi + g5*psi);
ExtractSlice(tmp, q, 0, Ls_/2);
psi += 0.5 * (tmp - g5*tmp);
PJ5q = trace(adj(psi)*psi);
}
// Test ward identities, D_mu V_mu = 0; D_mu A_mu = 2m<PP> + 2 PJ5q
for (unsigned int mu = 0; mu < Nd; ++mu)
{
vector_WI += Vmu[mu] - Cshift(Vmu[mu], mu, -1);
defect += Amu[mu] - Cshift(Amu[mu], mu, -1);
}
defect -= 2.*PJ5q;
defect -= 2.*(par().mass)*PP;
LOG(Message) << "Vector Ward Identity check Delta_mu V_mu = "
<< norm2(vector_WI) << std::endl;
LOG(Message) << "Axial Ward Identity defect Delta_mu A_mu = "
<< norm2(defect) << std::endl;
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WardIdentity_hpp_

117
extras/Hadrons/Modules/MContraction/WardIdentitySeq.hpp Normal file
View File

@ -0,0 +1,117 @@
#ifndef Hadrons_WardIdentitySeq_hpp_
#define Hadrons_WardIdentitySeq_hpp_
#include <Grid/Hadrons/Global.hpp>
#include <Grid/Hadrons/Module.hpp>
#include <Grid/Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
Ward Identity contractions using sequential propagators.
-----------------------------
* options:
- q_x: propagator, mu = x current insertion (string).
- q_y: propagator, mu = y current insertion (string).
- q_z: propagator, mu = z current insertion (string).
- q_t: propagator, mu = t current insertion (string).
*/
/******************************************************************************
* WardIdentitySeq *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
class WardIdentitySeqPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(WardIdentitySeqPar,
std::string, q_x,
std::string, q_y,
std::string, q_z,
std::string, q_t);
};
template <typename FImpl>
class TWardIdentitySeq: public Module<WardIdentitySeqPar>
{
public:
TYPE_ALIASES(FImpl,);
public:
// constructor
TWardIdentitySeq(const std::string name);
// destructor
virtual ~TWardIdentitySeq(void) = default;
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_NS(WardIdentitySeq, TWardIdentitySeq<FIMPL>, MContraction);
/******************************************************************************
* TWardIdentitySeq implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TWardIdentitySeq<FImpl>::TWardIdentitySeq(const std::string name)
: Module<WardIdentitySeqPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TWardIdentitySeq<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().q_x, par().q_y, par().q_z, par().q_t};
return in;
}
template <typename FImpl>
std::vector<std::string> TWardIdentitySeq<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentitySeq<FImpl>::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentitySeq<FImpl>::execute(void)
{
LatticeComplex vector_WI(env().getGrid()), c(env().getGrid());
PropagatorField q_x = *env().template getObject<PropagatorField>(par().q_x);
PropagatorField q_y = *env().template getObject<PropagatorField>(par().q_y);
PropagatorField q_z = *env().template getObject<PropagatorField>(par().q_z);
PropagatorField q_t = *env().template getObject<PropagatorField>(par().q_t);
PropagatorField *q[Nd] = {&q_x, &q_y, &q_z, &q_t};
Gamma g5(Gamma::Algebra::Gamma5);
// Check D_mu V_mu = 0
for (unsigned int mu = 0; mu < Nd; ++mu)
{
c = trace(g5*(*q[mu]));
vector_WI += c - Cshift(c, mu, -1);
}
LOG(Message) << "Ward Identity checks for sequential vector current "
<< "insertion = " << norm2(vector_WI) << std::endl;
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WardIdentitySeq_hpp_

129
extras/Hadrons/Modules/MSource/SeqConserved.hpp Normal file
View File

@ -0,0 +1,129 @@
#ifndef Hadrons_SeqConserved_hpp_
#define Hadrons_SeqConserved_hpp_
#include <Grid/Hadrons/Global.hpp>
#include <Grid/Hadrons/Module.hpp>
#include <Grid/Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
Sequential source
-----------------------------
* src_x = q_x * theta(x_3 - tA) * theta(tB - x_3) * J_mu * exp(i x.mom)
* options:
- q: input propagator (string)
- action: fermion action used for propagator q (string)
- tA: begin timeslice (integer)
- tB: end timesilce (integer)
- curr_type: type of conserved current to insert (Current)
- mu: Lorentz index of current to insert (integer)
- mom: momentum insertion, space-separated float sequence (e.g ".1 .2 1. 0.")
*/
/******************************************************************************
* SeqConserved *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MSource)
class SeqConservedPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(SeqConservedPar,
std::string, q,
std::string, action,
unsigned int, tA,
unsigned int, tB,
Current, curr_type,
unsigned int, mu,
std::string, mom);
};
template <typename FImpl>
class TSeqConserved: public Module<SeqConservedPar>
{
public:
TYPE_ALIASES(FImpl,);
public:
// constructor
TSeqConserved(const std::string name);
// destructor
virtual ~TSeqConserved(void) = default;
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_NS(SeqConserved, TSeqConserved<FIMPL>, MSource);
/******************************************************************************
* TSeqConserved implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TSeqConserved<FImpl>::TSeqConserved(const std::string name)
: Module<SeqConservedPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TSeqConserved<FImpl>::getInput(void)
{
std::vector<std::string> in;
return in;
}
template <typename FImpl>
std::vector<std::string> TSeqConserved<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TSeqConserved<FImpl>::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TSeqConserved<FImpl>::execute(void)
{
if (par().tA == par().tB)
{
LOG(Message) << "Generating sequential source with conserved "
<< par().curr_type << " current insertion (mu = "
<< par().mu << ") at " << "t = " << par().tA << std::endl;
}
else
{
LOG(Message) << "Generating sequential source with conserved "
<< par().curr_type << " current insertion (mu = "
<< par().mu << ") for " << par().tA << " <= t <= "
<< par().tB << std::endl;
}
PropagatorField &src = *env().template createLattice<PropagatorField>(getName());
PropagatorField &q = *env().template getObject<PropagatorField>(par().q);
FMat &mat = *(env().template getObject<FMat>(par().action));
std::vector<Real> mom = strToVec<Real>(par().mom);
mat.SeqConservedCurrent(q, src, par().curr_type, par().mu,
mom, par().tA, par().tB);
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_SeqConserved_hpp_

3
extras/Hadrons/modules.inc
View File

@ -13,6 +13,8 @@ modules_hpp =\
Modules/MContraction/DiscLoop.hpp \
Modules/MContraction/Gamma3pt.hpp \
Modules/MContraction/Meson.hpp \
Modules/MContraction/WardIdentity.hpp \
Modules/MContraction/WardIdentitySeq.hpp \
Modules/MContraction/WeakHamiltonian.hpp \
Modules/MContraction/WeakHamiltonianEye.hpp \
Modules/MContraction/WeakHamiltonianNonEye.hpp \
@ -23,6 +25,7 @@ modules_hpp =\
Modules/MLoop/NoiseLoop.hpp \
Modules/MSolver/RBPrecCG.hpp \
Modules/MSource/Point.hpp \
Modules/MSource/SeqConserved.hpp \
Modules/MSource/SeqGamma.hpp \
Modules/MSource/Wall.hpp \
Modules/MSource/Z2.hpp \