portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-18 07:47:06 +01:00
Code Releases Activity

Merge branch 'feature/hadrons' into feature/qed-fvol

Browse Source 
# Conflicts:
#	Makefile.am
#	configure.ac
#	lib/qcd/action/gauge/Photon.h
This commit is contained in:
Antonin Portelli
2016-12-15 19:53:00 +00:00
parent b10ae00c8a 67d72000e7
commit bc6678732f
107 changed files with 7689 additions and 3686 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
programs/qed-fvol/Global.cc
View File

@ -1,11 +0,0 @@
#include <qed-fvol/Global.hpp>
using namespace Grid;
using namespace QCD;
using namespace QedFVol;
QedFVolLogger QedFVol::QedFVolLogError(1,"Error");
QedFVolLogger QedFVol::QedFVolLogWarning(1,"Warning");
QedFVolLogger QedFVol::QedFVolLogMessage(1,"Message");
QedFVolLogger QedFVol::QedFVolLogIterative(1,"Iterative");
QedFVolLogger QedFVol::QedFVolLogDebug(1,"Debug");

42
programs/qed-fvol/Global.hpp
View File

@ -1,42 +0,0 @@
#ifndef QedFVol_Global_hpp_
#define QedFVol_Global_hpp_
#include <Grid/Grid.h>
#define BEGIN_QEDFVOL_NAMESPACE \
namespace Grid {\
using namespace QCD;\
namespace QedFVol {\
using Grid::operator<<;
#define END_QEDFVOL_NAMESPACE }}
/* the 'using Grid::operator<<;' statement prevents a very nasty compilation
* error with GCC (clang compiles fine without it).
*/
BEGIN_QEDFVOL_NAMESPACE
class QedFVolLogger: public Logger
{
public:
QedFVolLogger(int on, std::string nm): Logger("QedFVol", on, nm,
GridLogColours, "BLACK"){};
};
#define LOG(channel) std::cout << QedFVolLog##channel
#define QEDFVOL_ERROR(msg)\
LOG(Error) << msg << " (" << __FUNCTION__ << " at " << __FILE__ << ":"\
<< __LINE__ << ")" << std::endl;\
abort();
#define DEBUG_VAR(var) LOG(Debug) << #var << "= " << (var) << std::endl;
extern QedFVolLogger QedFVolLogError;
extern QedFVolLogger QedFVolLogWarning;
extern QedFVolLogger QedFVolLogMessage;
extern QedFVolLogger QedFVolLogIterative;
extern QedFVolLogger QedFVolLogDebug;
END_QEDFVOL_NAMESPACE
#endif // QedFVol_Global_hpp_

9
programs/qed-fvol/Makefile.am
View File

@ -1,9 +0,0 @@
AM_CXXFLAGS += -I$(top_srcdir)/programs -I../$(top_srcdir)/programs
bin_PROGRAMS = qed-fvol
qed_fvol_SOURCES = \
qed-fvol.cc \
Global.cc
qed_fvol_LDADD = -lGrid

265
programs/qed-fvol/WilsonLoops.h
View File

@ -1,265 +0,0 @@
#ifndef QEDFVOL_WILSONLOOPS_H
#define QEDFVOL_WILSONLOOPS_H
#include <Global.hpp>
BEGIN_QEDFVOL_NAMESPACE
template <class Gimpl> class NewWilsonLoops : public Gimpl {
public:
INHERIT_GIMPL_TYPES(Gimpl);
typedef typename Gimpl::GaugeLinkField GaugeMat;
typedef typename Gimpl::GaugeField GaugeLorentz;
//////////////////////////////////////////////////
// directed plaquette oriented in mu,nu plane
//////////////////////////////////////////////////
static void dirPlaquette(GaugeMat &plaq, const std::vector<GaugeMat> &U,
const int mu, const int nu) {
// Annoyingly, must use either scope resolution to find dependent base
// class,
// or this-> ; there is no "this" in a static method. This forces explicit
// Gimpl scope
// resolution throughout the usage in this file, and rather defeats the
// purpose of deriving
// from Gimpl.
plaq = Gimpl::CovShiftBackward(
U[mu], mu, Gimpl::CovShiftBackward(
U[nu], nu, Gimpl::CovShiftForward(U[mu], mu, U[nu])));
}
//////////////////////////////////////////////////
// trace of directed plaquette oriented in mu,nu plane
//////////////////////////////////////////////////
static void traceDirPlaquette(LatticeComplex &plaq,
const std::vector<GaugeMat> &U, const int mu,
const int nu) {
GaugeMat sp(U[0]._grid);
dirPlaquette(sp, U, mu, nu);
plaq = trace(sp);
}
//////////////////////////////////////////////////
// sum over all planes of plaquette
//////////////////////////////////////////////////
static void sitePlaquette(LatticeComplex &Plaq,
const std::vector<GaugeMat> &U) {
LatticeComplex sitePlaq(U[0]._grid);
Plaq = zero;
for (int mu = 1; mu < U[0]._grid->_ndimension; mu++) {
for (int nu = 0; nu < mu; nu++) {
traceDirPlaquette(sitePlaq, U, mu, nu);
Plaq = Plaq + sitePlaq;
}
}
}
//////////////////////////////////////////////////
// sum over all x,y,z,t and over all planes of plaquette
//////////////////////////////////////////////////
static Real sumPlaquette(const GaugeLorentz &Umu) {
std::vector<GaugeMat> U(4, Umu._grid);
for (int mu = 0; mu < Umu._grid->_ndimension; mu++) {
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
}
LatticeComplex Plaq(Umu._grid);
sitePlaquette(Plaq, U);
TComplex Tp = sum(Plaq);
Complex p = TensorRemove(Tp);
return p.real();
}
//////////////////////////////////////////////////
// average over all x,y,z,t and over all planes of plaquette
//////////////////////////////////////////////////
static Real avgPlaquette(const GaugeLorentz &Umu) {
int ndim = Umu._grid->_ndimension;
Real sumplaq = sumPlaquette(Umu);
Real vol = Umu._grid->gSites();
Real faces = (1.0 * ndim * (ndim - 1)) / 2.0;
return sumplaq / vol / faces / Nc; // Nc dependent... FIXME
}
//////////////////////////////////////////////////
// Wilson loop of size (R1, R2), oriented in mu,nu plane
//////////////////////////////////////////////////
static void wilsonLoop(GaugeMat &wl, const std::vector<GaugeMat> &U,
const int Rmu, const int Rnu,
const int mu, const int nu) {
wl = U[nu];
for(int i = 0; i < Rnu-1; i++){
wl = Gimpl::CovShiftForward(U[nu], nu, wl);
}
for(int i = 0; i < Rmu; i++){
wl = Gimpl::CovShiftForward(U[mu], mu, wl);
}
for(int i = 0; i < Rnu; i++){
wl = Gimpl::CovShiftBackward(U[nu], nu, wl);
}
for(int i = 0; i < Rmu; i++){
wl = Gimpl::CovShiftBackward(U[mu], mu, wl);
}
}
//////////////////////////////////////////////////
// trace of Wilson Loop oriented in mu,nu plane
//////////////////////////////////////////////////
static void traceWilsonLoop(LatticeComplex &wl,
const std::vector<GaugeMat> &U,
const int Rmu, const int Rnu,
const int mu, const int nu) {
GaugeMat sp(U[0]._grid);
wilsonLoop(sp, U, Rmu, Rnu, mu, nu);
wl = trace(sp);
}
//////////////////////////////////////////////////
// sum over all planes of Wilson loop
//////////////////////////////////////////////////
static void siteWilsonLoop(LatticeComplex &Wl,
const std::vector<GaugeMat> &U,
const int R1, const int R2) {
LatticeComplex siteWl(U[0]._grid);
Wl = zero;
for (int mu = 1; mu < U[0]._grid->_ndimension; mu++) {
for (int nu = 0; nu < mu; nu++) {
traceWilsonLoop(siteWl, U, R1, R2, mu, nu);
Wl = Wl + siteWl;
traceWilsonLoop(siteWl, U, R2, R1, mu, nu);
Wl = Wl + siteWl;
}
}
}
//////////////////////////////////////////////////
// sum over planes of Wilson loop with length R1
// in the time direction
//////////////////////////////////////////////////
static void siteTimelikeWilsonLoop(LatticeComplex &Wl,
const std::vector<GaugeMat> &U,
const int R1, const int R2) {
LatticeComplex siteWl(U[0]._grid);
int ndim = U[0]._grid->_ndimension;
Wl = zero;
for (int nu = 0; nu < ndim - 1; nu++) {
traceWilsonLoop(siteWl, U, R1, R2, ndim-1, nu);
Wl = Wl + siteWl;
}
}
//////////////////////////////////////////////////
// sum Wilson loop over all planes orthogonal to the time direction
//////////////////////////////////////////////////
static void siteSpatialWilsonLoop(LatticeComplex &Wl,
const std::vector<GaugeMat> &U,
const int R1, const int R2) {
LatticeComplex siteWl(U[0]._grid);
Wl = zero;
for (int mu = 1; mu < U[0]._grid->_ndimension - 1; mu++) {
for (int nu = 0; nu < mu; nu++) {
traceWilsonLoop(siteWl, U, R1, R2, mu, nu);
Wl = Wl + siteWl;
traceWilsonLoop(siteWl, U, R2, R1, mu, nu);
Wl = Wl + siteWl;
}
}
}
//////////////////////////////////////////////////
// sum over all x,y,z,t and over all planes of Wilson loop
//////////////////////////////////////////////////
static Real sumWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
std::vector<GaugeMat> U(4, Umu._grid);
for (int mu = 0; mu < Umu._grid->_ndimension; mu++) {
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
}
LatticeComplex Wl(Umu._grid);
siteWilsonLoop(Wl, U, R1, R2);
TComplex Tp = sum(Wl);
Complex p = TensorRemove(Tp);
return p.real();
}
//////////////////////////////////////////////////
// sum over all x,y,z,t and over all planes of timelike Wilson loop
//////////////////////////////////////////////////
static Real sumTimelikeWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
std::vector<GaugeMat> U(4, Umu._grid);
for (int mu = 0; mu < Umu._grid->_ndimension; mu++) {
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
}
LatticeComplex Wl(Umu._grid);
siteTimelikeWilsonLoop(Wl, U, R1, R2);
TComplex Tp = sum(Wl);
Complex p = TensorRemove(Tp);
return p.real();
}
//////////////////////////////////////////////////
// sum over all x,y,z,t and over all planes of spatial Wilson loop
//////////////////////////////////////////////////
static Real sumSpatialWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
std::vector<GaugeMat> U(4, Umu._grid);
for (int mu = 0; mu < Umu._grid->_ndimension; mu++) {
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
}
LatticeComplex Wl(Umu._grid);
siteSpatialWilsonLoop(Wl, U, R1, R2);
TComplex Tp = sum(Wl);
Complex p = TensorRemove(Tp);
return p.real();
}
//////////////////////////////////////////////////
// average over all x,y,z,t and over all planes of Wilson loop
//////////////////////////////////////////////////
static Real avgWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
int ndim = Umu._grid->_ndimension;
Real sumWl = sumWilsonLoop(Umu, R1, R2);
Real vol = Umu._grid->gSites();
Real faces = 1.0 * ndim * (ndim - 1);
return sumWl / vol / faces / Nc; // Nc dependent... FIXME
}
//////////////////////////////////////////////////
// average over all x,y,z,t and over all planes of timelike Wilson loop
//////////////////////////////////////////////////
static Real avgTimelikeWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
int ndim = Umu._grid->_ndimension;
Real sumWl = sumTimelikeWilsonLoop(Umu, R1, R2);
Real vol = Umu._grid->gSites();
Real faces = 1.0 * (ndim - 1);
return sumWl / vol / faces / Nc; // Nc dependent... FIXME
}
//////////////////////////////////////////////////
// average over all x,y,z,t and over all planes of spatial Wilson loop
//////////////////////////////////////////////////
static Real avgSpatialWilsonLoop(const GaugeLorentz &Umu,
const int R1, const int R2) {
int ndim = Umu._grid->_ndimension;
Real sumWl = sumSpatialWilsonLoop(Umu, R1, R2);
Real vol = Umu._grid->gSites();
Real faces = 1.0 * (ndim - 1) * (ndim - 2);
return sumWl / vol / faces / Nc; // Nc dependent... FIXME
}
};
END_QEDFVOL_NAMESPACE
#endif // QEDFVOL_WILSONLOOPS_H

110
programs/qed-fvol/qed-fvol.cc
View File

@ -1,110 +0,0 @@
#include <Global.hpp>
#include <WilsonLoops.h>
using namespace Grid;
using namespace QCD;
using namespace QedFVol;
template <class S>
class QedGimpl
{
public:
typedef S Simd;
template <typename vtype>
using iImplGaugeLink = iScalar<iScalar<iScalar<vtype>>>;
template <typename vtype>
using iImplGaugeField = iVector<iScalar<iScalar<vtype>>, Nd>;
typedef iImplGaugeLink<Simd> SiteGaugeLink;
typedef iImplGaugeField<Simd> SiteGaugeField;
typedef Lattice<SiteGaugeLink> GaugeLinkField; // bit ugly naming; polarised
// gauge field, lorentz... all
// ugly
typedef Lattice<SiteGaugeField> GaugeField;
};
typedef QedGimpl<vComplex> QedGimplR;
typedef PeriodicGaugeImpl<QedGimplR> QedPeriodicGimplR;
typedef Photon<QedGimplR> PhotonR;
typedef PhotonR::GaugeField EmField;
typedef PhotonR::GaugeLinkField EmComp;
const int NCONFIGS = 10;
const int NWILSON = 10;
int main(int argc, char *argv[])
{
// parse command line
std::string parameterFileName;
if (argc < 2)
{
std::cerr << "usage: " << argv[0] << " <parameter file> [Grid options]";
std::cerr << std::endl;
std::exit(EXIT_FAILURE);
}
parameterFileName = argv[1];
// initialization
Grid_init(&argc, &argv);
QedFVolLogError.Active(GridLogError.isActive());
QedFVolLogWarning.Active(GridLogWarning.isActive());
QedFVolLogMessage.Active(GridLogMessage.isActive());
QedFVolLogIterative.Active(GridLogIterative.isActive());
QedFVolLogDebug.Active(GridLogDebug.isActive());
LOG(Message) << "Grid initialized" << std::endl;
// QED stuff
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(4, vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
GridCartesian grid(latt_size,simd_layout,mpi_layout);
GridParallelRNG pRNG(&grid);
PhotonR photon(PhotonR::Gauge::Feynman,
PhotonR::ZmScheme::QedL);
EmField a(&grid);
EmField expA(&grid);
Complex imag_unit(0, 1);
Real wlA;
std::vector<Real> logWlAvg(NWILSON, 0.0), logWlTime(NWILSON, 0.0), logWlSpace(NWILSON, 0.0);
pRNG.SeedRandomDevice();
LOG(Message) << "Wilson loop calculation beginning" << std::endl;
for(int ic = 0; ic < NCONFIGS; ic++){
LOG(Message) << "Configuration " << ic <<std::endl;
photon.StochasticField(a, pRNG);
// Exponentiate photon field
expA = exp(imag_unit*a);
// Calculate Wilson loops
for(int iw=1; iw<=NWILSON; iw++){
wlA = NewWilsonLoops<QedPeriodicGimplR>::avgWilsonLoop(expA, iw, iw) * 3;
logWlAvg[iw-1] -= 2*log(wlA);
wlA = NewWilsonLoops<QedPeriodicGimplR>::avgTimelikeWilsonLoop(expA, iw, iw) * 3;
logWlTime[iw-1] -= 2*log(wlA);
wlA = NewWilsonLoops<QedPeriodicGimplR>::avgSpatialWilsonLoop(expA, iw, iw) * 3;
logWlSpace[iw-1] -= 2*log(wlA);
}
}
LOG(Message) << "Wilson loop calculation completed" << std::endl;
// Calculate Wilson loops
for(int iw=1; iw<=10; iw++){
LOG(Message) << iw << 'x' << iw << " Wilson loop" << std::endl;
LOG(Message) << "-2log(W) average: " << logWlAvg[iw-1]/NCONFIGS << std::endl;
LOG(Message) << "-2log(W) timelike: " << logWlTime[iw-1]/NCONFIGS << std::endl;
LOG(Message) << "-2log(W) spatial: " << logWlSpace[iw-1]/NCONFIGS << std::endl;
}
// epilogue
LOG(Message) << "Grid is finalizing now" << std::endl;
Grid_finalize();
return EXIT_SUCCESS;
}