1
0
mirror of https://github.com/paboyle/Grid.git synced 2024-11-14 01:35:36 +00:00
Grid/Hadrons/Modules/MScalarSUN/TrMag.hpp

149 lines
4.7 KiB
C++

/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MScalarSUN/TrMag.hpp
Copyright (C) 2015-2019
Author: Antonin Portelli <antonin.portelli@me.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MScalarSUN_TrMag_hpp_
#define Hadrons_MScalarSUN_TrMag_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
#include <Hadrons/Modules/MScalarSUN/Utils.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* Trace of powers of the magnetisation *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MScalarSUN)
class TrMagPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(TrMagPar,
std::string, field,
unsigned int, maxPow,
std::string, output);
};
class TrMagResult: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(TrMagResult,
std::string, op,
Real, value);
};
template <typename SImpl>
class TTrMag: public Module<TrMagPar>
{
public:
typedef typename SImpl::Field Field;
typedef typename SImpl::ComplexField ComplexField;
public:
// constructor
TTrMag(const std::string name);
// destructor
virtual ~TTrMag(void) {};
// 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_TMP(TrMagSU2, TTrMag<ScalarNxNAdjImplR<2>>, MScalarSUN);
MODULE_REGISTER_TMP(TrMagSU3, TTrMag<ScalarNxNAdjImplR<3>>, MScalarSUN);
MODULE_REGISTER_TMP(TrMagSU4, TTrMag<ScalarNxNAdjImplR<4>>, MScalarSUN);
MODULE_REGISTER_TMP(TrMagSU5, TTrMag<ScalarNxNAdjImplR<5>>, MScalarSUN);
MODULE_REGISTER_TMP(TrMagSU6, TTrMag<ScalarNxNAdjImplR<6>>, MScalarSUN);
/******************************************************************************
* TTrMag implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename SImpl>
TTrMag<SImpl>::TTrMag(const std::string name)
: Module<TrMagPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename SImpl>
std::vector<std::string> TTrMag<SImpl>::getInput(void)
{
std::vector<std::string> in = {par().field};
return in;
}
template <typename SImpl>
std::vector<std::string> TTrMag<SImpl>::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename SImpl>
void TTrMag<SImpl>::setup(void)
{}
// execution ///////////////////////////////////////////////////////////////////
template <typename SImpl>
void TTrMag<SImpl>::execute(void)
{
LOG(Message) << "Computing tr(mag^n) for n even up to " << par().maxPow
<< std::endl;
std::vector<TrMagResult> result;
auto &phi = envGet(Field, par().field);
auto m2 = sum(phi);
auto mn = m2;
m2 = -m2*m2;
mn = 1.;
for (unsigned int n = 2; n <= par().maxPow; n += 2)
{
TrMagResult r;
mn = mn*m2;
r.op = "tr(mag^" + std::to_string(n) + ")";
r.value = TensorRemove(trace(mn)).real();
result.push_back(r);
}
saveResult(par().output, "trmag", result);
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MScalarSUN_TrMag_hpp_