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Hadrons: moving Hadrons to root directory, build system improvements
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Hadrons/A2AVectors.hpp
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Hadrons/A2AVectors.hpp
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: extras/Hadrons/A2AVectors.hpp
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Copyright (C) 2015-2018
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Author: Antonin Portelli <antonin.portelli@me.com>
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Author: fionnoh <fionnoh@gmail.com>
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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 directory
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*************************************************************************************/
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/* END LEGAL */
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#ifndef A2A_Vectors_hpp_
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#define A2A_Vectors_hpp_
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#include <Hadrons/Global.hpp>
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#include <Hadrons/Environment.hpp>
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#include <Hadrons/Solver.hpp>
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BEGIN_HADRONS_NAMESPACE
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/******************************************************************************
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* Classes to generate V & W all-to-all vectors *
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******************************************************************************/
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template <typename FImpl>
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class A2AVectorsSchurDiagTwo
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{
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public:
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FERM_TYPE_ALIASES(FImpl,);
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SOLVER_TYPE_ALIASES(FImpl,);
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public:
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A2AVectorsSchurDiagTwo(FMat &action, Solver &solver);
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virtual ~A2AVectorsSchurDiagTwo(void) = default;
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void makeLowModeV(FermionField &vout,
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const FermionField &evec, const Real &eval);
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void makeLowModeV5D(FermionField &vout_4d, FermionField &vout_5d,
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const FermionField &evec, const Real &eval);
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void makeLowModeW(FermionField &wout,
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const FermionField &evec, const Real &eval);
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void makeLowModeW5D(FermionField &wout_4d, FermionField &wout_5d,
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const FermionField &evec, const Real &eval);
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void makeHighModeV(FermionField &vout, const FermionField &noise);
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void makeHighModeV5D(FermionField &vout_4d, FermionField &vout_5d,
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const FermionField &noise_5d);
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void makeHighModeW(FermionField &wout, const FermionField &noise);
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void makeHighModeW5D(FermionField &vout_5d, FermionField &wout_5d,
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const FermionField &noise_5d);
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private:
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FMat &action_;
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Solver &solver_;
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GridBase *fGrid_, *frbGrid_, *gGrid_;
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bool is5d_;
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FermionField src_o_, sol_e_, sol_o_, tmp_, tmp5_;
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SchurDiagTwoOperator<FMat, FermionField> op_;
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};
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/******************************************************************************
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* A2AVectorsSchurDiagTwo template implementation *
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******************************************************************************/
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template <typename FImpl>
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A2AVectorsSchurDiagTwo<FImpl>::A2AVectorsSchurDiagTwo(FMat &action, Solver &solver)
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: action_(action)
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, solver_(solver)
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, fGrid_(action_.FermionGrid())
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, frbGrid_(action_.FermionRedBlackGrid())
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, gGrid_(action_.GaugeGrid())
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, src_o_(frbGrid_)
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, sol_e_(frbGrid_)
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, sol_o_(frbGrid_)
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, tmp_(frbGrid_)
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, tmp5_(fGrid_)
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, op_(action_)
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{}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeV(FermionField &vout, const FermionField &evec, const Real &eval)
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{
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src_o_ = evec;
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src_o_.checkerboard = Odd;
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pickCheckerboard(Even, sol_e_, vout);
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pickCheckerboard(Odd, sol_o_, vout);
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/////////////////////////////////////////////////////
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// v_ie = -(1/eval_i) * MeeInv Meo MooInv evec_i
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/////////////////////////////////////////////////////
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action_.MooeeInv(src_o_, tmp_);
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assert(tmp_.checkerboard == Odd);
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action_.Meooe(tmp_, sol_e_);
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assert(sol_e_.checkerboard == Even);
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action_.MooeeInv(sol_e_, tmp_);
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assert(tmp_.checkerboard == Even);
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sol_e_ = (-1.0 / eval) * tmp_;
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assert(sol_e_.checkerboard == Even);
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/////////////////////////////////////////////////////
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// v_io = (1/eval_i) * MooInv evec_i
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/////////////////////////////////////////////////////
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action_.MooeeInv(src_o_, tmp_);
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assert(tmp_.checkerboard == Odd);
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sol_o_ = (1.0 / eval) * tmp_;
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assert(sol_o_.checkerboard == Odd);
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setCheckerboard(vout, sol_e_);
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assert(sol_e_.checkerboard == Even);
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setCheckerboard(vout, sol_o_);
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assert(sol_o_.checkerboard == Odd);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeV5D(FermionField &vout_4d, FermionField &vout_5d, const FermionField &evec, const Real &eval)
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{
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makeLowModeV(vout_5d, evec, eval);
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action_.ExportPhysicalFermionSolution(vout_5d, vout_4d);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeW(FermionField &wout, const FermionField &evec, const Real &eval)
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{
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src_o_ = evec;
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src_o_.checkerboard = Odd;
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pickCheckerboard(Even, sol_e_, wout);
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pickCheckerboard(Odd, sol_o_, wout);
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/////////////////////////////////////////////////////
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// w_ie = - MeeInvDag MoeDag Doo evec_i
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/////////////////////////////////////////////////////
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op_.Mpc(src_o_, tmp_);
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assert(tmp_.checkerboard == Odd);
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action_.MeooeDag(tmp_, sol_e_);
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assert(sol_e_.checkerboard == Even);
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action_.MooeeInvDag(sol_e_, tmp_);
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assert(tmp_.checkerboard == Even);
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sol_e_ = (-1.0) * tmp_;
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/////////////////////////////////////////////////////
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// w_io = Doo evec_i
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/////////////////////////////////////////////////////
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op_.Mpc(src_o_, sol_o_);
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assert(sol_o_.checkerboard == Odd);
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setCheckerboard(wout, sol_e_);
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assert(sol_e_.checkerboard == Even);
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setCheckerboard(wout, sol_o_);
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assert(sol_o_.checkerboard == Odd);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeW5D(FermionField &wout_4d,
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FermionField &wout_5d,
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const FermionField &evec,
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const Real &eval)
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{
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makeLowModeW(tmp5_, evec, eval);
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action_.DminusDag(tmp5_, wout_5d);
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action_.ExportPhysicalFermionSource(wout_5d, wout_4d);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeV(FermionField &vout,
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const FermionField &noise)
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{
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solver_(vout, noise);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeV5D(FermionField &vout_4d,
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FermionField &vout_5d,
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const FermionField &noise)
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{
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if (noise._grid->Dimensions() == fGrid_->Dimensions() - 1)
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{
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action_.ImportPhysicalFermionSource(noise, tmp5_);
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}
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else
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{
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tmp5_ = noise;
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}
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makeHighModeV(vout_5d, tmp5_);
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action_.ExportPhysicalFermionSolution(vout_5d, vout_4d);
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeW(FermionField &wout,
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const FermionField &noise)
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{
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wout = noise;
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}
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template <typename FImpl>
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void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeW5D(FermionField &wout_4d,
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FermionField &wout_5d,
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const FermionField &noise)
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{
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if (noise._grid->Dimensions() == fGrid_->Dimensions() - 1)
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{
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action_.ImportUnphysicalFermion(noise, wout_5d);
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wout_4d = noise;
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}
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else
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{
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wout_5d = noise;
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action_.ExportPhysicalFermionSource(wout_5d, wout_4d);
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}
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}
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END_HADRONS_NAMESPACE
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#endif // A2A_Vectors_hpp_
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