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146 lines
4.3 KiB
C++
146 lines
4.3 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/modules/FermionOperatorModules.h
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Copyright (C) 2016
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Author: Guido Cossu <guido.cossu@ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution
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directory
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*************************************************************************************/
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/* END LEGAL */
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#ifndef FERMIONOPERATOR_MODULES_H
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#define FERMIONOPERATOR_MODULES_H
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namespace Grid {
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////////////////////////////////////
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// Fermion operators
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/////////////////////////////////////
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template < class Product>
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class FermionOperatorModuleBase : public HMCModuleBase<Product>{
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public:
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virtual void AddGridPair(QCD::GridModule&) = 0;
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};
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template <template <typename> class FOType, class FermionImpl, class FOPar>
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class FermionOperatorModule
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: public Parametrized<FOPar>,
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public FermionOperatorModuleBase<QCD::FermionOperator<FermionImpl> > {
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protected:
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std::unique_ptr< FOType<FermionImpl> > FOPtr;
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std::vector< std::reference_wrapper<QCD::GridModule> > GridRefs;
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public:
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typedef HMCModuleBase< QCD::FermionOperator<FermionImpl> > Base;
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typedef typename Base::Product Product;
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FermionOperatorModule(FOPar Par) : Parametrized<FOPar>(Par) {}
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template <class ReaderClass>
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FermionOperatorModule(Reader<ReaderClass>& Reader) : Parametrized<FOPar>(Reader){};
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void AddGridPair(QCD::GridModule &Mod){
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if (GridRefs.size()>2){
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std::cout << GridLogError << "Adding too many Grids to the FermionOperatorModule" << std::endl;
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exit(1);
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}
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GridRefs.push_back(Mod);
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}
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virtual void print_parameters(){
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std::cout << this->Par_ << std::endl;
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}
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Product* getPtr() {
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if (!FOPtr) initialize();
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return FOPtr.get();
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}
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private:
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virtual void initialize() = 0;
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};
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// Factory
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template <char const *str, class FermionImpl, class ReaderClass >
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class HMC_FermionOperatorModuleFactory
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: public Factory < FermionOperatorModuleBase<QCD::FermionOperator<FermionImpl> > , Reader<ReaderClass> > {
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public:
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// use SINGLETON FUNCTOR MACRO HERE
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typedef Reader<ReaderClass> TheReader;
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HMC_FermionOperatorModuleFactory(const HMC_FermionOperatorModuleFactory& e) = delete;
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void operator=(const HMC_FermionOperatorModuleFactory& e) = delete;
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static HMC_FermionOperatorModuleFactory& getInstance(void) {
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static HMC_FermionOperatorModuleFactory e;
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return e;
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}
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private:
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HMC_FermionOperatorModuleFactory(void) = default;
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std::string obj_type() const {
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return std::string(str);
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}
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};
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extern char fermionop_string[];
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namespace QCD{
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// Modules
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class WilsonFermionParameters : Serializable {
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(WilsonFermionParameters,
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RealD, mass);
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};
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template <class FermionImpl >
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class WilsonFermionModule: public FermionOperatorModule<WilsonFermion, FermionImpl, WilsonFermionParameters> {
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typedef FermionOperatorModule<WilsonFermion, FermionImpl, WilsonFermionParameters> FermBase;
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using FermBase::FermBase; // for constructors
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// acquire resource
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virtual void initialize(){
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typename FermionImpl::GaugeField U(this->GridRefs[0].get().get_full());
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this->FOPtr.reset(new WilsonFermion<FermionImpl>(U, *(this->GridRefs[0].get().get_full()), *(this->GridRefs[0].get().get_rb()), this->Par_.mass));
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}
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};
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// Now a specific registration with a fermion field
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static Registrar< WilsonFermionModule<WilsonImplR>,
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HMC_FermionOperatorModuleFactory<fermionop_string, WilsonImplR, XmlReader> > __WilsonFOPmodXMLInit("Wilson");
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} // QCD
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} // Grid
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#endif //SOLVER_MODULES_H
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