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Staggereed move to accelerator
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Peter Boyle
282
tests/core/Test_staggered_naive.cc
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282
tests/core/Test_staggered_naive.cc
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./benchmarks/Benchmark_wilson.cc
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: paboyle <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 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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;
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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Coordinate latt_size = GridDefaultLatt();
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Coordinate simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
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Coordinate mpi_layout = GridDefaultMpi();
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GridCartesian Grid(latt_size,simd_layout,mpi_layout);
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GridRedBlackCartesian RBGrid(&Grid);
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int threads = GridThread::GetThreads();
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std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
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std::cout<<GridLogMessage << "Grid floating point word size is REALF"<< sizeof(RealF)<<std::endl;
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std::cout<<GridLogMessage << "Grid floating point word size is REALD"<< sizeof(RealD)<<std::endl;
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std::cout<<GridLogMessage << "Grid floating point word size is REAL"<< sizeof(Real)<<std::endl;
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std::vector<int> seeds({1,2,3,4});
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GridParallelRNG pRNG(&Grid);
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pRNG.SeedFixedIntegers(seeds);
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// pRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9});
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typedef typename NaiveStaggeredFermionR::FermionField FermionField;
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typedef typename NaiveStaggeredFermionR::ComplexField ComplexField;
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typename NaiveStaggeredFermionR::ImplParams params;
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FermionField src (&Grid); random(pRNG,src);
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FermionField result(&Grid); result=Zero();
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FermionField ref(&Grid); ref=Zero();
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FermionField tmp(&Grid); tmp=Zero();
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FermionField err(&Grid); tmp=Zero();
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FermionField phi (&Grid); random(pRNG,phi);
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FermionField chi (&Grid); random(pRNG,chi);
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LatticeGaugeField Umu(&Grid); SU3::HotConfiguration(pRNG,Umu);
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std::vector<LatticeColourMatrix> U(4,&Grid);
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double volume=1;
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for(int mu=0;mu<Nd;mu++){
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volume=volume*latt_size[mu];
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}
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// Only one non-zero (y)
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for(int mu=0;mu<Nd;mu++){
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U[mu] = PeekIndex<LorentzIndex>(Umu,mu);
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/* Debug force unit
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U[mu] = 1.0;
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PokeIndex<LorentzIndex>(Umu,U[mu],mu);
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*/
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}
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ref = Zero();
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RealD mass=0.1;
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RealD c1=9.0/8.0;
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RealD u0=1.0;
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{ // Simple improved staggered implementation
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ref = Zero();
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RealD c1tad = 0.5*c1/u0;
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Lattice<iScalar<vInteger> > coor(&Grid);
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Lattice<iScalar<vInteger> > x(&Grid); LatticeCoordinate(x,0);
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Lattice<iScalar<vInteger> > y(&Grid); LatticeCoordinate(y,1);
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Lattice<iScalar<vInteger> > z(&Grid); LatticeCoordinate(z,2);
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Lattice<iScalar<vInteger> > t(&Grid); LatticeCoordinate(t,3);
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Lattice<iScalar<vInteger> > lin_z(&Grid); lin_z=x+y;
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Lattice<iScalar<vInteger> > lin_t(&Grid); lin_t=x+y+z;
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for(int mu=0;mu<Nd;mu++){
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// Staggered Phase.
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ComplexField phases(&Grid); phases=1.0;
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if ( mu == 1 ) phases = where( mod(x ,2)==(Integer)0, phases,-phases);
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if ( mu == 2 ) phases = where( mod(lin_z,2)==(Integer)0, phases,-phases);
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if ( mu == 3 ) phases = where( mod(lin_t,2)==(Integer)0, phases,-phases);
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tmp = PeriodicBC::CovShiftForward(U[mu],mu,src);
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ref = ref +c1tad*tmp*phases; // Forward 1 hop
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tmp = PeriodicBC::CovShiftBackward(U[mu],mu,src);
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ref = ref -c1tad*tmp*phases; // Backward 1 hop
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}
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// ref = ref + mass * src;
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}
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NaiveStaggeredFermionR Ds(Umu,Grid,RBGrid,mass,c1,u0,params);
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Testing Dhop against cshift implementation "<<std::endl;
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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std::cout<<GridLogMessage << "Calling Ds"<<std::endl;
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int ncall=1000;
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double t0=usecond();
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for(int i=0;i<ncall;i++){
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Ds.Dhop(src,result,0);
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}
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double t1=usecond();
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double t2;
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double flops=(16*(3*(6+8+8)) + 15*3*2)*volume*ncall; // == 66*16 + == 1146
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std::cout<<GridLogMessage << "Called Ds"<<std::endl;
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std::cout<<GridLogMessage << "norm result "<< norm2(result)<<std::endl;
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std::cout<<GridLogMessage << "norm ref "<< norm2(ref)<<std::endl;
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std::cout<<GridLogMessage << "mflop/s = "<< flops/(t1-t0)<<std::endl;
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err = ref-result;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Testing that Deo + Doe = Dunprec "<<std::endl;
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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FermionField src_e (&RBGrid);
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FermionField src_o (&RBGrid);
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FermionField r_e (&RBGrid);
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FermionField r_o (&RBGrid);
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FermionField r_eo (&Grid);
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pickCheckerboard(Even,src_e,src);
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pickCheckerboard(Odd,src_o,src);
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Ds.Meooe(src_e,r_o); std::cout<<GridLogMessage<<"Applied Meo"<<std::endl;
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Ds.Meooe(src_o,r_e); std::cout<<GridLogMessage<<"Applied Moe"<<std::endl;
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Ds.Dhop (src,ref,DaggerNo);
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setCheckerboard(r_eo,r_o);
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setCheckerboard(r_eo,r_e);
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err= ref - r_eo;
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std::cout<<GridLogMessage << "EO norm diff "<< norm2(err)<< " "<<norm2(ref)<< " " << norm2(r_eo) <<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test Ddagger is the dagger of D by requiring "<<std::endl;
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std::cout<<GridLogMessage<<"= < phi | Deo | chi > * = < chi | Deo^dag| phi> "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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FermionField chi_e (&RBGrid);
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FermionField chi_o (&RBGrid);
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FermionField dchi_e (&RBGrid);
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FermionField dchi_o (&RBGrid);
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FermionField phi_e (&RBGrid);
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FermionField phi_o (&RBGrid);
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FermionField dphi_e (&RBGrid);
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FermionField dphi_o (&RBGrid);
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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pickCheckerboard(Even,phi_e,phi);
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pickCheckerboard(Odd ,phi_o,phi);
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Ds.Meooe(chi_e,dchi_o);
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Ds.Meooe(chi_o,dchi_e);
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Ds.MeooeDag(phi_e,dphi_o);
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Ds.MeooeDag(phi_o,dphi_e);
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ComplexD pDce = innerProduct(phi_e,dchi_e);
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ComplexD pDco = innerProduct(phi_o,dchi_o);
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ComplexD cDpe = innerProduct(chi_e,dphi_e);
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ComplexD cDpo = innerProduct(chi_o,dphi_o);
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std::cout<<GridLogMessage <<"e "<<pDce<<" "<<cDpe <<std::endl;
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std::cout<<GridLogMessage <<"o "<<pDco<<" "<<cDpo <<std::endl;
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std::cout<<GridLogMessage <<"pDce - conj(cDpo) "<< pDce-conj(cDpo) <<std::endl;
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std::cout<<GridLogMessage <<"pDco - conj(cDpe) "<< pDco-conj(cDpe) <<std::endl;
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std::cout<<GridLogMessage <<"e "<<pDce<<" "<<cDpe <<std::endl;
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std::cout<<GridLogMessage <<"o "<<pDco<<" "<<cDpo <<std::endl;
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std::cout<<GridLogMessage <<"pDce - conj(cDpo) "<< pDce-conj(cDpo) <<std::endl;
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std::cout<<GridLogMessage <<"pDco - conj(cDpe) "<< pDco-conj(cDpe) <<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MeeInv Mee = 1 "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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Ds.Mooee(chi_e,src_e);
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Ds.MooeeInv(src_e,phi_e);
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Ds.Mooee(chi_o,src_o);
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Ds.MooeeInv(src_o,phi_o);
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setCheckerboard(phi,phi_e);
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setCheckerboard(phi,phi_o);
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err = phi-chi;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<< std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MeeInvDag MeeDag = 1 "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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Ds.MooeeDag(chi_e,src_e);
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Ds.MooeeInvDag(src_e,phi_e);
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Ds.MooeeDag(chi_o,src_o);
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Ds.MooeeInvDag(src_o,phi_o);
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setCheckerboard(phi,phi_e);
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setCheckerboard(phi,phi_o);
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err = phi-chi;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<< std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MpcDagMpc is Hermitian "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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random(pRNG,phi);
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random(pRNG,chi);
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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pickCheckerboard(Even,phi_e,phi);
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pickCheckerboard(Odd ,phi_o,phi);
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SchurDiagMooeeOperator<NaiveStaggeredFermionR,FermionField> HermOpEO(Ds);
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HermOpEO.MpcDagMpc(chi_e,dchi_e,t1,t2);
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HermOpEO.MpcDagMpc(chi_o,dchi_o,t1,t2);
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HermOpEO.MpcDagMpc(phi_e,dphi_e,t1,t2);
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HermOpEO.MpcDagMpc(phi_o,dphi_o,t1,t2);
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pDce = innerProduct(phi_e,dchi_e);
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pDco = innerProduct(phi_o,dchi_o);
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cDpe = innerProduct(chi_e,dphi_e);
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cDpo = innerProduct(chi_o,dphi_o);
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std::cout<<GridLogMessage <<"e "<<pDce<<" "<<cDpe <<std::endl;
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std::cout<<GridLogMessage <<"o "<<pDco<<" "<<cDpo <<std::endl;
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std::cout<<GridLogMessage <<"pDce - conj(cDpo) "<< pDco-conj(cDpo) <<std::endl;
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std::cout<<GridLogMessage <<"pDco - conj(cDpe) "<< pDce-conj(cDpe) <<std::endl;
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Grid_finalize();
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}
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