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Fast axpy norm under CFLAG

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Peter Boyle 2024-10-11 03:23:09 +00:00
parent 54f1999030
commit b728af903c
1 changed files with 15 additions and 2 deletions
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17
Grid/lattice/Lattice_arith.h
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@ -257,17 +257,30 @@ void axpby(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice
}); });
} }
#define FAST_AXPY_NORM
template<class sobj,class vobj> inline template<class sobj,class vobj> inline
RealD axpy_norm(Lattice<vobj> &ret,sobj a,const Lattice<vobj> &x,const Lattice<vobj> &y) RealD axpy_norm(Lattice<vobj> &ret,sobj a,const Lattice<vobj> &x,const Lattice<vobj> &y)
{ {
GRID_TRACE("axpy_norm"); GRID_TRACE("axpy_norm");
return axpy_norm_fast(ret,a,x,y); #ifdef FAST_AXPY_NORM
return axpy_norm_fast(ret,a,x,y);
#else
ret = a*x+y;
RealD nn=norm2(ret);
return nn;
#endif
} }
template<class sobj,class vobj> inline template<class sobj,class vobj> inline
RealD axpby_norm(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice<vobj> &y) RealD axpby_norm(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice<vobj> &y)
{ {
GRID_TRACE("axpby_norm"); GRID_TRACE("axpby_norm");
return axpby_norm_fast(ret,a,b,x,y); #ifdef FAST_AXPY_NORM
return axpby_norm_fast(ret,a,b,x,y);
#else
ret = a*x+b*y;
RealD nn=norm2(ret);
return nn;
#endif
} }
/// Trace product /// Trace product