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Rework of RNG to use C++11 random. Should work correctly maintaining parallel RNG across

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a machine. If a "fixedSeed" is used, randoms should be reproducible across different machine
decomposition since the generators are physically indexed and assigned in lexico ordering.
This commit is contained in:
Peter Boyle
2015-04-19 14:55:58 +01:00
parent 650410cb2f
commit a5b0c492d7
7 changed files with 191 additions and 55 deletions
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25
tests/Grid_main.cc
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@ -57,7 +57,8 @@ int main (int argc, char ** argv)
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
GridRedBlackCartesian rbFine(latt_size,simd_layout,mpi_layout);
GridRNG FineRNG(&Fine);
LatticeColourMatrix Foo(&Fine);
LatticeColourMatrix Bar(&Fine);
@ -91,17 +92,17 @@ int main (int argc, char ** argv)
iSpinMatrix<vComplex> iGammaFive;
ColourMatrix cmat;
random(Foo);
gaussian(Bar);
random(scFoo);
random(scBar);
random(FineRNG,Foo);
gaussian(FineRNG,Bar);
random(FineRNG,scFoo);
random(FineRNG,scBar);
random(cMat);
random(sMat);
random(scMat);
random(cVec);
random(sVec);
random(scVec);
random(FineRNG,cMat);
random(FineRNG,sMat);
random(FineRNG,scMat);
random(FineRNG,cVec);
random(FineRNG,sVec);
random(FineRNG,scVec);
fflush(stdout);
cVec = cMat * cVec; // LatticeColourVector = LatticeColourMatrix * LatticeColourVector
@ -277,7 +278,7 @@ int main (int argc, char ** argv)
peekSite(bar,Bar,coor);
for(int r=0;r<3;r++){
for(int c=0;c<3;c++){
cout<<"bar "<<coor[0]<<coor[1]<<coor[2]<<coor[3] <<" "<<bar()()(r,c)<<std::endl;
// cout<<"bar "<<coor[0]<<coor[1]<<coor[2]<<coor[3] <<" "<<bar()()(r,c)<<std::endl;
}}
}}}}
}

7
tests/test_Grid_stencil.cc
View File

@ -48,14 +48,15 @@ int main (int argc, char ** argv)
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
GridRedBlackCartesian rbFine(latt_size,simd_layout,mpi_layout);
GridRNG fRNG(&Fine);
LatticeColourMatrix Foo(&Fine);
LatticeColourMatrix Bar(&Fine);
LatticeColourMatrix Check(&Fine);
LatticeColourMatrix Diff(&Fine);
random(Foo);
gaussian(Bar);
random(fRNG,Foo);
gaussian(fRNG,Bar);
for(int dir=0;dir<4;dir++){