portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-04-04 03:05:55 +01:00
Code Releases Activity

Handle case of simd_layout not filling whole vector.

Browse Source 
Useful if real complex live on same grid
This commit is contained in:
Azusa Yamaguchi 2015-06-14 00:55:21 +01:00
parent 6d6e9a5811
commit 9c810200e0
1 changed files with 31 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
lib/tensors/Tensor_extract_merge.h
View File

@ -31,18 +31,17 @@ inline void merge(typename std::enable_if<!isGridTensor<vsimd>::value, vsimd >::
std::vector<scalar *> &extracted,int offset){
int Nextr=extracted.size();
int Nsimd=vsimd::Nsimd();
int s=Nsimd/Nextr;
int s=Nsimd/Nextr; // can have sparse occupation of simd vector if simd_layout does not fill it
// replicate n-fold. Use to allow Integer masks to
// predicate floating point of various width assignments and maintain conformable.
scalar *buf =(scalar *) y;
for(int i=0;i<Nextr;i++){
for(int ii=0;ii<s;ii++){
buf[i*s+ii]=extracted[i][offset];
}
}
};
////////////////////////////////////////////////////////////////////////////////////////////////
// Extract a fundamental vector type to scalar array
////////////////////////////////////////////////////////////////////////////////////////////////
@ -55,8 +54,17 @@ inline void extract(typename std::enable_if<!isGridTensor<vsimd>::value, const v
scalar *buf = (scalar *)&y;
for(int i=0;i<Nextr;i++){
for(int ii=0;ii<s;ii++){
extracted[i]=buf[i*s+ii];
extracted[i]=buf[i*s];
for(int ii=1;ii<s;ii++){
if ( buf[i*s]!=buf[i*s+ii] ){
std::cout << " SIMD extract failure splat="<<s<<" ii "<<ii<<" " <<Nextr<<" "<< Nsimd<<" "<<std::endl;
for(int vv=0;vv<Nsimd;vv++) {
std::cout<< buf[vv]<<" ";
}
std::cout<<std::endl;
assert(0);
}
assert(buf[i*s]==buf[i*s+ii]);
}
}
@ -74,21 +82,7 @@ inline void merge(typename std::enable_if<!isGridTensor<vsimd>::value, vsimd >::
for(int i=0;i<Nextr;i++){
for(int ii=0;ii<s;ii++){
buf[i*s+ii]=extracted[i];
}
}
};
template<class vsimd,class scalar>
inline void AmergeA(typename std::enable_if<!isGridTensor<vsimd>::value, vsimd >::type &y,std::vector<scalar> &extracted){
int Nextr=extracted.size();
int Nsimd=vsimd::Nsimd();
int s=Nsimd/Nextr;
scalar *buf = (scalar *)&y;
for(int i=0;i<Nextr;i++){
for(int ii=0;ii<s;ii++){
buf[i*s+ii]=extracted[i];
buf[i*s+ii]=extracted[i]; // replicates value
}
}
};
@ -102,12 +96,12 @@ template<class vobj> inline void extract(const vobj &vec,std::vector<typename vo
typedef typename vobj::vector_type vector_type ;
const int Nsimd=vobj::vector_type::Nsimd();
int Nextr=extracted.size();
const int words=sizeof(vobj)/sizeof(vector_type);
int s=Nsimd/Nextr;
extracted.resize(Nsimd);
std::vector<scalar_type *> pointers(Nsimd);
for(int i=0;i<Nsimd;i++)
std::vector<scalar_type *> pointers(Nextr);
for(int i=0;i<Nextr;i++)
pointers[i] =(scalar_type *)& extracted[i];
vector_type *vp = (vector_type *)&vec;
@ -127,11 +121,11 @@ void extract(const vobj &vec,std::vector<typename vobj::scalar_object *> &extrac
const int words=sizeof(vobj)/sizeof(vector_type);
const int Nsimd=vobj::vector_type::Nsimd();
assert(extracted.size()==Nsimd);
int Nextr=extracted.size();
int s = Nsimd/Nextr;
std::vector<scalar_type *> pointers(Nsimd);
for(int i=0;i<Nsimd;i++) {
for(int i=0;i<Nextr;i++) {
pointers[i] =(scalar_type *)& extracted[i][offset];
}
@ -153,10 +147,11 @@ void merge(vobj &vec,std::vector<typename vobj::scalar_object> &extracted)
const int Nsimd=vobj::vector_type::Nsimd();
const int words=sizeof(vobj)/sizeof(vector_type);
assert(extracted.size()==Nsimd);
int Nextr = extracted.size();
int splat=Nsimd/Nextr;
std::vector<scalar_type *> pointers(Nsimd);
for(int i=0;i<Nsimd;i++)
std::vector<scalar_type *> pointers(Nextr);
for(int i=0;i<Nextr;i++)
pointers[i] =(scalar_type *)& extracted[i];
vector_type *vp = (vector_type *)&vec;
@ -177,14 +172,14 @@ void merge(vobj &vec,std::vector<typename vobj::scalar_object *> &extracted,int
const int Nsimd=vobj::vector_type::Nsimd();
const int words=sizeof(vobj)/sizeof(vector_type);
assert(extracted.size()==Nsimd);
int Nextr=extracted.size();
std::vector<scalar_type *> pointers(Nsimd);
for(int i=0;i<Nsimd;i++)
std::vector<scalar_type *> pointers(Nextr);
for(int i=0;i<Nextr;i++)
pointers[i] =(scalar_type *)& extracted[i][offset];
vector_type *vp = (vector_type *)&vec;
assert((void *)vp!=NULL);
for(int w=0;w<words;w++){
merge<vector_type,scalar_type>(&vp[w],pointers,w);
}