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Merge branch 'develop' of https://github.com/paboyle/Grid into develop

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This commit is contained in:
Guido Cossu 2017-05-18 14:45:00 +01:00
commit a8fb2835ca
3 changed files with 128 additions and 11 deletions
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4
lib/lattice/Lattice_reduction.h
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@ -328,6 +328,8 @@ static void sliceMaddVector(Lattice<vobj> &R,std::vector<RealD> &a,const Lattice
typedef typename vobj::vector_type vector_type;
typedef typename vobj::tensor_reduced tensor_reduced;
scalar_type zscale(scale);
GridBase *grid = X._grid;
int Nsimd =grid->Nsimd();
@ -353,7 +355,7 @@ static void sliceMaddVector(Lattice<vobj> &R,std::vector<RealD> &a,const Lattice
grid->iCoorFromIindex(icoor,l);
int ldx =r+icoor[orthogdim]*rd;
scalar_type *as =(scalar_type *)&av;
as[l] = scalar_type(a[ldx])*scale;
as[l] = scalar_type(a[ldx])*zscale;
}
tensor_reduced at; at=av;

25
lib/simd/Grid_vector_types.h
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@ -327,18 +327,20 @@ class Grid_simd {
// provides support
///////////////////////////////////////
#if (__GNUC__ == 5 ) || ( ( __GNUC__ == 6 ) && __GNUC_MINOR__ < 3 )
#pragma GCC push_options
#pragma GCC optimize ("O0")
#endif
//#if (__GNUC__ == 5 ) || ( ( __GNUC__ == 6 ) && __GNUC_MINOR__ < 3 )
//#pragma GCC push_options
//#pragma GCC optimize ("O0")
//#endif
template <class functor>
friend inline Grid_simd SimdApply(const functor &func, const Grid_simd &v) {
Grid_simd ret;
Grid_simd::conv_t conv;
Grid_simd::scalar_type s;
conv.v = v.v;
for (int i = 0; i < Nsimd(); i++) {
conv.s[i] = func(conv.s[i]);
s = conv.s[i];
conv.s[i] = func(s);
}
ret.v = conv.v;
return ret;
@ -350,18 +352,21 @@ class Grid_simd {
Grid_simd ret;
Grid_simd::conv_t cx;
Grid_simd::conv_t cy;
Grid_simd::scalar_type sx,sy;
cx.v = x.v;
cy.v = y.v;
for (int i = 0; i < Nsimd(); i++) {
cx.s[i] = func(cx.s[i], cy.s[i]);
sx = cx.s[i];
sy = cy.s[i];
cx.s[i] = func(sx,sy);
}
ret.v = cx.v;
return ret;
}
#if (__GNUC__ == 5 ) || ( ( __GNUC__ == 6 ) && __GNUC_MINOR__ < 3 )
#pragma GCC pop_options
#endif
//#if (__GNUC__ == 5 ) || ( ( __GNUC__ == 6 ) && __GNUC_MINOR__ < 3 )
//#pragma GCC pop_options
//#endif
///////////////////////
// Exchange
// Al Ah , Bl Bh -> Al Bl Ah,Bh

110
tests/Test_dwf_mixedcg_prec_halfcomms.cc Normal file
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@ -0,0 +1,110 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_dwf_cg_prec.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;
template<class d>
struct scal {
d internal;
};
Gamma::Algebra Gmu [] = {
Gamma::Algebra::GammaX,
Gamma::Algebra::GammaY,
Gamma::Algebra::GammaZ,
Gamma::Algebra::GammaT
};
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
const int Ls=24;
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexD::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
GridCartesian * UGrid_f = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid_f = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid_f);
GridCartesian * FGrid_f = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid_f);
GridRedBlackCartesian * FrbGrid_f = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid_f);
std::vector<int> seeds4({1,2,3,4});
std::vector<int> seeds5({5,6,7,8});
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
LatticeFermionD src(FGrid); random(RNG5,src);
LatticeFermionD result(FGrid); result=zero;
LatticeGaugeFieldD Umu(UGrid);
LatticeGaugeFieldF Umu_f(UGrid_f);
SU3::HotConfiguration(RNG4,Umu);
precisionChange(Umu_f,Umu);
RealD mass=0.1;
RealD M5=1.8;
DomainWallFermionD Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
DomainWallFermionFH Ddwf_f(Umu_f,*FGrid_f,*FrbGrid_f,*UGrid_f,*UrbGrid_f,mass,M5);
LatticeFermionD src_o(FrbGrid);
LatticeFermionD result_o(FrbGrid);
LatticeFermionD result_o_2(FrbGrid);
pickCheckerboard(Odd,src_o,src);
result_o.checkerboard = Odd;
result_o = zero;
result_o_2.checkerboard = Odd;
result_o_2 = zero;
SchurDiagMooeeOperator<DomainWallFermionD,LatticeFermionD> HermOpEO(Ddwf);
SchurDiagMooeeOperator<DomainWallFermionFH,LatticeFermionF> HermOpEO_f(Ddwf_f);
std::cout << "Starting mixed CG" << std::endl;
MixedPrecisionConjugateGradient<LatticeFermionD,LatticeFermionF> mCG(1.0e-8, 10000, 50, FrbGrid_f, HermOpEO_f, HermOpEO);
mCG.InnerTolerance = 3.0e-5;
mCG(src_o,result_o);
std::cout << "Starting regular CG" << std::endl;
ConjugateGradient<LatticeFermionD> CG(1.0e-8,10000);
CG(HermOpEO,src_o,result_o_2);
LatticeFermionD diff_o(FrbGrid);
RealD diff = axpy_norm(diff_o, -1.0, result_o, result_o_2);
std::cout << "Diff between mixed and regular CG: " << diff << std::endl;
Grid_finalize();
}