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Grid/lib/lattice/Grid_lattice_trace.h
Peter Boyle c6baa3e657 Threading support rework.
Placed parallel pragmas as macros; implemented deterministic thread reduction in style of
BFM.
2015-05-12 07:51:41 +01:00

44 lines
1.4 KiB
C++

#ifndef GRID_LATTICE_TRACE_H
#define GRID_LATTICE_TRACE_H
///////////////////////////////////////////////
// Tracing, transposing, peeking, poking
///////////////////////////////////////////////
namespace Grid {
////////////////////////////////////////////////////////////////////////////////////////////////////
// Trace
////////////////////////////////////////////////////////////////////////////////////////////////////
template<class vobj>
inline auto trace(const Lattice<vobj> &lhs)
-> Lattice<decltype(trace(lhs._odata[0]))>
{
Lattice<decltype(trace(lhs._odata[0]))> ret(lhs._grid);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
ret._odata[ss] = trace(lhs._odata[ss]);
}
return ret;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Trace Index level dependent operation
////////////////////////////////////////////////////////////////////////////////////////////////////
template<int Index,class vobj>
inline auto traceIndex(const Lattice<vobj> &lhs)
-> Lattice<decltype(traceIndex<Index>(lhs._odata[0]))>
{
Lattice<decltype(traceIndex<Index>(lhs._odata[0]))> ret(lhs._grid);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
ret._odata[ss] = traceIndex<Index>(lhs._odata[ss]);
}
return ret;
};
}
#endif