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1559dd4adc
Grid/lib/lattice/Grid_lattice_arith.h
Peter Boyle 1559dd4adc Compile time select if we do the streaming store copy. Relies on Clang++ eliminating object copies, 
and other compliers do not necessarily cope.
2015-05-21 06:39:00 +01:00

227 lines
6.9 KiB
C++
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#ifndef GRID_LATTICE_ARITH_H
#define GRID_LATTICE_ARITH_H
namespace Grid {
//////////////////////////////////////////////////////////////////////////////////////////////////////
// avoid copy back routines for mult, mac, sub, add
//////////////////////////////////////////////////////////////////////////////////////////////////////
template<class obj1,class obj2,class obj3> strong_inline
void mult(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const Lattice<obj3> &rhs){
conformable(lhs,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
mult(&tmp,&lhs._odata[ss],&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
mult(&ret._odata[ss],&lhs._odata[ss],&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void mac(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const Lattice<obj3> &rhs){
conformable(lhs,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
mac(&tmp,&lhs._odata[ss],&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
mac(&ret._odata[ss],&lhs._odata[ss],&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void sub(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const Lattice<obj3> &rhs){
conformable(lhs,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
sub(&tmp,&lhs._odata[ss],&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
sub(&ret._odata[ss],&lhs._odata[ss],&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void add(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const Lattice<obj3> &rhs){
conformable(lhs,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
add(&tmp,&lhs._odata[ss],&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
add(&ret._odata[ss],&lhs._odata[ss],&rhs._odata[ss]);
#endif
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
// avoid copy back routines for mult, mac, sub, add
//////////////////////////////////////////////////////////////////////////////////////////////////////
template<class obj1,class obj2,class obj3> strong_inline
void mult(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const obj3 &rhs){
conformable(lhs,ret);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
obj1 tmp;
mult(&tmp,&lhs._odata[ss],&rhs);
vstream(ret._odata[ss],tmp);
}
}
template<class obj1,class obj2,class obj3> strong_inline
void mac(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const obj3 &rhs){
conformable(lhs,ret);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
obj1 tmp;
mac(&tmp,&lhs._odata[ss],&rhs);
vstream(ret._odata[ss],tmp);
}
}
template<class obj1,class obj2,class obj3> strong_inline
void sub(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const obj3 &rhs){
conformable(lhs,ret);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
sub(&tmp,&lhs._odata[ss],&rhs);
vstream(ret._odata[ss],tmp);
#else
sub(&ret._odata[ss],&lhs._odata[ss],&rhs);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void add(Lattice<obj1> &ret,const Lattice<obj2> &lhs,const obj3 &rhs){
conformable(lhs,ret);
PARALLEL_FOR_LOOP
for(int ss=0;ss<lhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
add(&tmp,&lhs._odata[ss],&rhs);
vstream(ret._odata[ss],tmp);
#else
add(&ret._odata[ss],&lhs._odata[ss],&rhs);
#endif
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
// avoid copy back routines for mult, mac, sub, add
//////////////////////////////////////////////////////////////////////////////////////////////////////
template<class obj1,class obj2,class obj3> strong_inline
void mult(Lattice<obj1> &ret,const obj2 &lhs,const Lattice<obj3> &rhs){
conformable(ret,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<rhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
mult(&tmp,&lhs,&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
mult(&ret._odata[ss],&lhs,&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void mac(Lattice<obj1> &ret,const obj2 &lhs,const Lattice<obj3> &rhs){
conformable(ret,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<rhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
mac(&tmp,&lhs,&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
mac(&ret._odata[ss],&lhs,&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void sub(Lattice<obj1> &ret,const obj2 &lhs,const Lattice<obj3> &rhs){
conformable(ret,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<rhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
sub(&tmp,&lhs,&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
sub(&ret._odata[ss],&lhs,&rhs._odata[ss]);
#endif
}
}
template<class obj1,class obj2,class obj3> strong_inline
void add(Lattice<obj1> &ret,const obj2 &lhs,const Lattice<obj3> &rhs){
conformable(ret,rhs);
PARALLEL_FOR_LOOP
for(int ss=0;ss<rhs._grid->oSites();ss++){
#ifdef STREAMING_STORES
obj1 tmp;
add(&tmp,&lhs,&rhs._odata[ss]);
vstream(ret._odata[ss],tmp);
#else
add(&ret._odata[ss],&lhs,&rhs._odata[ss]);
#endif
}
}
template<class sobj,class vobj> strong_inline
void axpy(Lattice<vobj> &ret,sobj a,const Lattice<vobj> &x,const Lattice<vobj> &y){
conformable(x,y);
#pragma omp parallel for
for(int ss=0;ss<x._grid->oSites();ss++){
#ifdef STREAMING_STORES
vobj tmp = a*x._odata[ss]+y._odata[ss];
vstream(ret._odata[ss],tmp);
#else
ret._odata[ss]=a*x._odata[ss]+y._odata[ss];
#endif
}
}
template<class sobj,class vobj> strong_inline
void axpby(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice<vobj> &y){
conformable(x,y);
#pragma omp parallel for
for(int ss=0;ss<x._grid->oSites();ss++){
#ifdef STREAMING_STORES
vobj tmp = a*x._odata[ss]+b*y._odata[ss];
vstream(ret._odata[ss],tmp);
#else
ret._odata[ss]=a*x._odata[ss]+b*y._odata[ss];
#endif
}
}
template<class sobj,class vobj> strong_inline
RealD axpy_norm(Lattice<vobj> &ret,sobj a,const Lattice<vobj> &x,const Lattice<vobj> &y){
conformable(x,y);
axpy(ret,a,x,y);
return norm2(ret);
}
template<class sobj,class vobj> strong_inline
RealD axpby_norm(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice<vobj> &y){
conformable(x,y);
axpby(ret,a,b,x,y);
return norm2(ret); // FIXME implement parallel norm in ss loop
}
}
#endif
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