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135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/ActionBase.h
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Copyright (C) 2015-2016
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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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 ACTION_BASE_H
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#define ACTION_BASE_H
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NAMESPACE_BEGIN(Grid);
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///////////////////////////////////
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// Smart configuration base class
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///////////////////////////////////
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template< class Field >
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class ConfigurationBase
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{
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public:
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ConfigurationBase() {}
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virtual ~ConfigurationBase() {}
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virtual void set_Field(Field& U) =0;
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virtual void smeared_force(Field&) = 0;
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virtual Field& get_SmearedU() =0;
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virtual Field &get_U(bool smeared = false) = 0;
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};
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template <class GaugeField >
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class Action
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{
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public:
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bool is_smeared = false;
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RealD deriv_norm_sum;
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RealD deriv_max_sum;
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RealD Fdt_norm_sum;
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RealD Fdt_max_sum;
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int deriv_num;
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RealD deriv_us;
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RealD S_us;
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RealD refresh_us;
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void reset_timer(void) {
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deriv_us = S_us = refresh_us = 0.0;
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deriv_norm_sum = deriv_max_sum=0.0;
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Fdt_max_sum = Fdt_norm_sum = 0.0;
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deriv_num=0;
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}
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void deriv_log(RealD nrm, RealD max,RealD Fdt_nrm,RealD Fdt_max) {
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if ( max > deriv_max_sum ) {
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deriv_max_sum=max;
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}
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deriv_norm_sum+=nrm;
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if ( Fdt_max > Fdt_max_sum ) {
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Fdt_max_sum=Fdt_max;
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}
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Fdt_norm_sum+=Fdt_nrm; deriv_num++;
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}
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RealD deriv_max_average(void) { return deriv_max_sum; };
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RealD deriv_norm_average(void) { return deriv_norm_sum/deriv_num; };
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RealD Fdt_max_average(void) { return Fdt_max_sum; };
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RealD Fdt_norm_average(void) { return Fdt_norm_sum/deriv_num; };
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RealD deriv_timer(void) { return deriv_us; };
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RealD S_timer(void) { return S_us; };
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RealD refresh_timer(void) { return refresh_us; };
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void deriv_timer_start(void) { deriv_us-=usecond(); }
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void deriv_timer_stop(void) { deriv_us+=usecond(); }
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void refresh_timer_start(void) { refresh_us-=usecond(); }
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void refresh_timer_stop(void) { refresh_us+=usecond(); }
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void S_timer_start(void) { S_us-=usecond(); }
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void S_timer_stop(void) { S_us+=usecond(); }
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/////////////////////////////
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// Heatbath?
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/////////////////////////////
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virtual void refresh(const GaugeField& U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) = 0; // refresh pseudofermions
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virtual RealD S(const GaugeField& U) = 0; // evaluate the action
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virtual RealD Sinitial(const GaugeField& U) { return this->S(U); } ; // if the refresh computes the action, can cache it. Alternately refreshAndAction() ?
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virtual void deriv(const GaugeField& U, GaugeField& dSdU) = 0; // evaluate the action derivative
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/////////////////////////////////////////////////////////////
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// virtual smeared interface through configuration container
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/////////////////////////////////////////////////////////////
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virtual void refresh(ConfigurationBase<GaugeField> & U, GridSerialRNG &sRNG, GridParallelRNG& pRNG)
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{
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refresh(U.get_U(is_smeared),sRNG,pRNG);
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}
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virtual RealD S(ConfigurationBase<GaugeField>& U)
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{
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return S(U.get_U(is_smeared));
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}
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virtual RealD Sinitial(ConfigurationBase<GaugeField>& U)
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{
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return Sinitial(U.get_U(is_smeared));
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}
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virtual void deriv(ConfigurationBase<GaugeField>& U, GaugeField& dSdU)
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{
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deriv(U.get_U(is_smeared),dSdU);
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if ( is_smeared ) {
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U.smeared_force(dSdU);
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}
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}
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///////////////////////////////
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// Logging
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///////////////////////////////
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virtual std::string action_name() = 0; // return the action name
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virtual std::string LogParameters() = 0; // prints action parameters
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virtual ~Action(){}
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};
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NAMESPACE_END(Grid);
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#endif // ACTION_BASE_H
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