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Added a test for Felix and Michael to look at

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Peter Boyle 2018-11-07 23:40:15 +00:00
parent e9b6f58fdc
commit 68c13045d6
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tests/debug/Test_split_laplacian.cc Normal file
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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_dwf_mrhs_cg.cc
Copyright (C) 2015
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
int main (int argc, char ** argv)
{
typedef LatticeComplex ComplexField;
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
int nd = latt_size.size();
int ndm1 = nd-1;
std::vector<int> simd_layout = GridDefaultSimd(nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
std::vector<int> mpi_split (mpi_layout.size(),1);
std::cout << " Full " << GridCmdVectorIntToString(latt_size) << " subgrid" <<std::endl;
std::cout << " Full " << GridCmdVectorIntToString(mpi_layout) << " sub communicator"<<std::endl;
std::cout << " Full " << GridCmdVectorIntToString(simd_layout)<< " simd layout " <<std::endl;
GridCartesian * GridN = new GridCartesian(latt_size,
simd_layout,
mpi_layout);
std::vector<int> latt_m = latt_size; latt_m[nd-1] = 1;
std::vector<int> mpi_m = mpi_layout; mpi_m [nd-1] = 1;
std::vector<int> simd_m = GridDefaultSimd(ndm1,vComplex::Nsimd()); simd_m.push_back(1);
std::cout << " Requesting " << GridCmdVectorIntToString(latt_m)<< " subgrid" <<std::endl;
std::cout << " Requesting " << GridCmdVectorIntToString(mpi_m) << " sub communicator"<<std::endl;
std::cout << " Requesting " << GridCmdVectorIntToString(simd_m)<< " simd layout " <<std::endl;
GridCartesian * Grid_m = new GridCartesian(latt_m,
simd_m,
mpi_m,
*GridN);
Complex C(1.0);
Complex tmp;
ComplexField Full(GridN); Full = C;
ComplexField Full_cpy(GridN);
ComplexField Split(Grid_m);Split= C;
std::cout << GridLogMessage<< " Full volume "<< norm2(Full) <<std::endl;
std::cout << GridLogMessage<< " Split volume "<< norm2(Split) <<std::endl;
tmp=C;
GridN->GlobalSum(tmp);
std::cout << GridLogMessage<< " Full nodes "<< tmp <<std::endl;
tmp=C;
Grid_m->GlobalSum(tmp);
std::cout << GridLogMessage<< " Split nodes "<< tmp <<std::endl;
GridN->Barrier();
auto local_latt = GridN->LocalDimensions();
Full_cpy = zero;
std::vector<int> seeds({1,2,3,4});
GridParallelRNG RNG(GridN); RNG.SeedFixedIntegers(seeds);
random(RNG,Full);
for(int t=0;t<local_latt[nd-1];t++){
ExtractSliceLocal(Split,Full,0,t,Tp);
InsertSliceLocal (Split,Full_cpy,0,t,Tp);
}
Full_cpy = Full_cpy - Full;
std::cout << " NormFull " << norm2(Full)<<std::endl;
std::cout << " NormDiff " << norm2(Full_cpy)<<std::endl;
Grid_finalize();
}