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Rotate in a direction > 2 for simd_layout

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paboyle 2016-04-19 15:35:15 -07:00
parent b27bac4669
commit 7223753355
1 changed files with 20 additions and 2 deletions
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22
lib/cshift/Cshift_common.h
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@ -324,6 +324,7 @@ template<class vobj> Lattice<vobj> Cshift_local(Lattice<vobj> &ret,const Lattice
int rd = grid->_rdimensions[dimension];
int ld = grid->_ldimensions[dimension];
int gd = grid->_gdimensions[dimension];
int ly = grid->_simd_layout[dimension];
// Map to always positive shift modulo global full dimension.
shift = (shift+fd)%fd;
@ -332,6 +333,7 @@ template<class vobj> Lattice<vobj> Cshift_local(Lattice<vobj> &ret,const Lattice
// the permute type
int permute_dim =grid->PermuteDim(dimension);
int permute_type=grid->PermuteType(dimension);
int permute_type_dist;
for(int x=0;x<rd;x++){
@ -343,15 +345,31 @@ template<class vobj> Lattice<vobj> Cshift_local(Lattice<vobj> &ret,const Lattice
int sshift = grid->CheckerBoardShiftForCB(rhs.checkerboard,dimension,shift,cb);
int sx = (x+sshift)%rd;
// FIXME : This must change where we have a
// Rotate slice.
// Document how this works ; why didn't I do this when I first wrote it...
// wrap is whether sshift > rd.
// num is sshift mod rd.
//
int permute_slice=0;
if(permute_dim){
int wrap = sshift/rd;
int num = sshift%rd;
if ( x< rd-num ) permute_slice=wrap;
else permute_slice = 1-wrap;
else permute_slice = (wrap+1)%ly;
if ( (ly>2) && (permute_slice) ) {
assert(permute_type & RotateBit);
permute_type_dist = permute_type|permute_slice;
} else {
permute_type_dist = permute_type;
}
}
if ( permute_slice ) Copy_plane_permute(ret,rhs,dimension,x,sx,cbmask,permute_type);
if ( permute_slice ) Copy_plane_permute(ret,rhs,dimension,x,sx,cbmask,permute_type_dist);
else Copy_plane(ret,rhs,dimension,x,sx,cbmask);