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https://github.com/paboyle/Grid.git
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65c91eae64
Placed parallel pragmas as macros; implemented deterministic thread reduction in style of BFM.
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
#ifndef GRID_LATTICE_LOCALREDUCTION_H
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#define GRID_LATTICE_LOCALREDUCTION_H
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///////////////////////////////////////////////
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// localInner, localNorm, outerProduct
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///////////////////////////////////////////////
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namespace Grid {
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/////////////////////////////////////////////////////
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// Non site, reduced locally reduced routines
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/////////////////////////////////////////////////////
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// localNorm2,
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template<class vobj>
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inline auto localNorm2 (const Lattice<vobj> &rhs)-> Lattice<typename vobj::tensor_reduced>
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{
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Lattice<typename vobj::tensor_reduced> ret(rhs._grid);
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PARALLEL_FOR_LOOP
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for(int ss=0;ss<rhs._grid->oSites(); ss++){
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ret._odata[ss]=innerProduct(rhs._odata[ss],rhs._odata[ss]);
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}
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return ret;
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}
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// localInnerProduct
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template<class vobj>
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inline auto localInnerProduct (const Lattice<vobj> &lhs,const Lattice<vobj> &rhs)
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-> Lattice<typename vobj::tensor_reduced>
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{
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Lattice<typename vobj::tensor_reduced> ret(rhs._grid);
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PARALLEL_FOR_LOOP
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for(int ss=0;ss<rhs._grid->oSites(); ss++){
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ret._odata[ss]=innerProduct(lhs._odata[ss],rhs._odata[ss]);
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}
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return ret;
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}
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// outerProduct Scalar x Scalar -> Scalar
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// Vector x Vector -> Matrix
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template<class ll,class rr>
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inline auto outerProduct (const Lattice<ll> &lhs,const Lattice<rr> &rhs) -> Lattice<decltype(outerProduct(lhs._odata[0],rhs._odata[0]))>
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{
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Lattice<decltype(outerProduct(lhs._odata[0],rhs._odata[0]))> ret(rhs._grid);
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PARALLEL_FOR_LOOP
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for(int ss=0;ss<rhs._grid->oSites(); ss++){
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ret._odata[ss]=outerProduct(lhs._odata[ss],rhs._odata[ss]);
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}
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return ret;
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}
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}
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#endif
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