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179 lines
5.9 KiB
C++
179 lines
5.9 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_dwf_lanczos.cc
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.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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#include <Grid/Grid.h>
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using namespace std;
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using namespace Grid;
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using namespace Grid::QCD;
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//typedef WilsonCloverFermionR FermionOp;
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//typedef typename WilsonFermionR::FermionField FermionField;
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typedef WilsonImplR FundImplPolicy;
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typedef WilsonCloverFermionR FundFermionAction;
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typedef typename FundFermionAction::FermionField FundFermionField;
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typedef WilsonTwoIndexAntiSymmetricImplR ASymmImplPolicy;
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typedef WilsonCloverTwoIndexAntiSymmetricFermionR ASymmFermionAction;
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typedef typename ASymmFermionAction::FermionField ASymmFermionField;
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RealD AllZero(RealD x) { return 0.; }
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int main(int argc, char** argv) {
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Grid_init(&argc, &argv);
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GridCartesian* UGrid = SpaceTimeGrid::makeFourDimGrid(
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GridDefaultLatt(), GridDefaultSimd(Nd, vComplex::Nsimd()),
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GridDefaultMpi());
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GridRedBlackCartesian* UrbGrid =
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SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian* FGrid = UGrid;
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GridRedBlackCartesian* FrbGrid = UrbGrid;
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printf("UGrid=%p UrbGrid=%p FGrid=%p FrbGrid=%p\n", UGrid, UrbGrid, FGrid,
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FrbGrid);
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std::vector<int> seeds4({1, 2, 3, 4});
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std::vector<int> seeds5({5, 6, 7, 8});
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GridParallelRNG RNG5(FGrid);
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RNG5.SeedFixedIntegers(seeds5);
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GridParallelRNG RNG4(UGrid);
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RNG4.SeedFixedIntegers(seeds4);
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GridParallelRNG RNG5rb(FrbGrid);
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RNG5.SeedFixedIntegers(seeds5);
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GridParallelRNG pRNG(UGrid);
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GridSerialRNG sRNG;
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FundamentalRepresentation::LatticeField Umu(UGrid);
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TwoIndexAntiSymmetricRepresentation HiRep(UGrid);
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TwoIndexAntiSymmetricRepresentation::LatticeField UmuAS(UGrid);
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CheckpointerParameters CPparams;
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CPparams.config_prefix = "ckpoint_lat";
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CPparams.rng_prefix = "ckpoint_rng";
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CPparams.format = "IEEE64BIG";
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//NerscHmcCheckpointer<PeriodicGimplR> Checkpoint(std::string("ckpoint_lat"),
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// std::string("ckpoint_rng"), 1);
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NerscHmcCheckpointer<PeriodicGimplR> Checkpoint(CPparams);
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int CNFGSTART=1;
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int CNFGEND=2;
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int CNFGSTEP=1;
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Real Fundmass = -0.1;
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Real Fundcsw = 1.0;
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Real ASmass = -0.1;
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Real AScsw = 1.0;
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std::cout << "Fund: mass and csw" << Fundmass << " and " << Fundcsw << std::endl;
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std::cout << "AS : mass and csw" << ASmass << " and " << AScsw << std::endl;
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const int Nstop = 30;
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const int Nk = 40;
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const int Np = 40;
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const int Nm = Nk + Np;
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const int MaxIt = 10000;
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RealD resid = 1.0e-8;
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for (int cnfg=CNFGSTART;cnfg<=CNFGEND;cnfg+=CNFGSTEP){
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Checkpoint.CheckpointRestore(cnfg,Umu, sRNG, pRNG);
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//SU4::HotConfiguration(RNG4, Umu); // temporary, then read.
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HiRep.update_representation(Umu);
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UmuAS = HiRep.U;
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FundFermionAction FundFermOp(Umu,*FGrid,*FrbGrid, Fundmass, Fundcsw, Fundcsw);
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MdagMLinearOperator<FundFermionAction,FundFermionField> HermOpFund(FundFermOp); /// <-----
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ASymmFermionAction ASFermOp(UmuAS,*FGrid,*FrbGrid, ASmass, AScsw, AScsw);
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MdagMLinearOperator<ASymmFermionAction,ASymmFermionField> HermOpAS(ASFermOp); /// <-----
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std::vector<double> Coeffs{0, -1.};
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Polynomial<FundFermionField> FundPolyX(Coeffs);
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//Chebyshev<FundFermionField> FundCheb(0.0, 10., 12);
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FunctionHermOp<FundFermionField> FundPolyXOp(FundPolyX,HermOpFund);
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PlainHermOp<FundFermionField> FundOp (HermOpFund);
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ImplicitlyRestartedLanczos<FundFermionField> IRL_Fund(FundOp, FundPolyXOp, Nstop, Nk, Nm,
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resid, MaxIt);
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Polynomial<ASymmFermionField> ASPolyX(Coeffs);
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//Chebyshev<ASymmFermionField> ASCheb(0.0, 10., 12);
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FunctionHermOp<ASymmFermionField> ASPolyXOp(ASPolyX,HermOpAS);
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PlainHermOp<ASymmFermionField> ASOp (HermOpAS);
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ImplicitlyRestartedLanczos<ASymmFermionField> IRL_AS(ASOp, ASPolyXOp, Nstop, Nk, Nm,
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resid, MaxIt);
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std::vector<RealD> Fundeval(Nm);
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std::vector<RealD> ASeval(Nm);
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FundFermionField Fundsrc(FGrid);
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ASymmFermionField ASsrc(FGrid);
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gaussian(RNG5, Fundsrc);
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gaussian(RNG5, ASsrc);
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std::vector<FundFermionField> Fundevec(Nm, FGrid);
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std::vector<ASymmFermionField> ASevec(Nm, FGrid);
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for (int i = 0; i < 1; i++) {
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std::cout << i << " / " << Nm << "Fund: grid pointer " << Fundevec[i]._grid
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<< std::endl;
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};
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for (int i = 0; i < 1; i++) {
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std::cout << i << " / " << Nm << "AS: grid pointer " << ASevec[i]._grid
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<< std::endl;
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};
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int FundNconv, ASNconv;
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IRL_Fund.calc(Fundeval, Fundevec, Fundsrc, FundNconv);
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IRL_AS.calc(ASeval, ASevec, ASsrc, ASNconv);
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for (int i=0;i<FundNconv;i++){
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std::cout << "Fund: eval[" << i << "] = " << Fundeval[i] << std::endl;
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}
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for (int i=0;i<ASNconv;i++){
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std::cout << "2Index: eval[" << i << "] = " << ASeval[i] << std::endl;
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}
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}
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Grid_finalize();
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}
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