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Implemented mixed precision CG. Fixed filelist to exclude lib/Old directory and include Config.h.

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This commit is contained in:
Christopher Kelly
2016-07-06 15:57:04 -04:00
parent df5c788ef2
commit 85ed8175cb
9 changed files with 311 additions and 14 deletions
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6
lib/lattice/Lattice_ET.h
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@ -82,6 +82,12 @@ template <typename T> using is_lattice = std::is_base_of<LatticeBase,T >;
template <typename T> using is_lattice_expr = std::is_base_of<LatticeExpressionBase,T >;
//Specialization of getVectorType for lattices
template<typename T>
struct getVectorType<Lattice<T> >{
typedef typename Lattice<T>::vector_object type;
};
template<class sobj>
inline sobj eval(const unsigned int ss, const sobj &arg)
{

90
lib/lattice/Lattice_transfer.h
View File

@ -482,6 +482,96 @@ void Replicate(Lattice<vobj> &coarse,Lattice<vobj> & fine)
}
//Copy SIMD-vectorized lattice to array of scalar objects in lexicographic order
template<typename vobj, typename sobj>
typename std::enable_if<isSIMDvectorized<vobj>::value && !isSIMDvectorized<sobj>::value, void>::type unvectorizeToLexOrdArray(std::vector<sobj> &out, const Lattice<vobj> &in){
typedef typename vobj::vector_type vtype;
GridBase* in_grid = in._grid;
out.resize(in_grid->lSites());
int ndim = in_grid->Nd();
int in_nsimd = vtype::Nsimd();
std::vector<int> in_icoor[in_nsimd];
for(int lane=0; lane < in_nsimd; lane++){
in_icoor[lane].resize(ndim);
in_grid->iCoorFromIindex(in_icoor[lane], lane);
}
PARALLEL_FOR_LOOP
for(int in_oidx = 0; in_oidx < in_grid->oSites(); in_oidx++){ //loop over outer index
//Assemble vector of pointers to output elements
std::vector<sobj*> out_ptrs(in_nsimd);
std::vector<int> in_ocoor(ndim);
in_grid->oCoorFromOindex(in_ocoor, in_oidx);
std::vector<int> lcoor(in_grid->Nd());
for(int lane=0; lane < in_nsimd; lane++){
for(int mu=0;mu<ndim;mu++)
lcoor[mu] = in_ocoor[mu] + in_grid->_rdimensions[mu]*in_icoor[lane][mu];
int lex;
Lexicographic::IndexFromCoor(lcoor, lex, in_grid->_ldimensions);
out_ptrs[lane] = &out[lex];
}
//Unpack into those ptrs
const vobj & in_vobj = in._odata[in_oidx];
extract1(in_vobj, out_ptrs, 0);
}
}
//Convert a Lattice from one precision to another
template<class VobjOut, class VobjIn>
void precisionChange(Lattice<VobjOut> &out, const Lattice<VobjIn> &in){
assert(out._grid->Nd() == in._grid->Nd());
out.checkerboard = in.checkerboard;
GridBase *in_grid=in._grid;
GridBase *out_grid = out._grid;
typedef typename VobjOut::scalar_object SobjOut;
typedef typename VobjIn::scalar_object SobjIn;
int ndim = out._grid->Nd();
int out_nsimd = out_grid->Nsimd();
std::vector<int> out_icoor[out_nsimd];
for(int lane=0; lane < out_nsimd; lane++){
out_icoor[lane].resize(ndim);
out_grid->iCoorFromIindex(out_icoor[lane], lane);
}
std::vector<SobjOut> in_slex_conv(in_grid->lSites());
unvectorizeToLexOrdArray(in_slex_conv, in);
PARALLEL_FOR_LOOP
for(int out_oidx=0;out_oidx<out_grid->oSites();out_oidx++){
std::vector<int> out_ocoor(ndim);
out_grid->oCoorFromOindex(out_ocoor, out_oidx);
std::vector<SobjOut*> ptrs(out_nsimd);
std::vector<int> lcoor(out_grid->Nd());
for(int lane=0; lane < out_nsimd; lane++){
for(int mu=0;mu<ndim;mu++)
lcoor[mu] = out_ocoor[mu] + out_grid->_rdimensions[mu]*out_icoor[lane][mu];
int llex; Lexicographic::IndexFromCoor(lcoor, llex, out_grid->_ldimensions);
ptrs[lane] = &in_slex_conv[llex];
}
merge(out._odata[out_oidx], ptrs, 0);
}
}
}
#endif