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Speed up Cshift

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Peter Boyle
2020-05-11 17:02:01 -04:00
parent 8c31c065b5
commit 07c0c02f8c
12 changed files with 373 additions and 265 deletions
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18
Grid/cartesian/Cartesian_red_black.h
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@ -35,12 +35,28 @@ static const int CbRed =0;
static const int CbBlack=1;
static const int Even =CbRed;
static const int Odd =CbBlack;
accelerator_inline int RedBlackCheckerBoardFromOindex (int oindex, Coordinate &rdim, Coordinate &chk_dim_msk)
{
int nd=rdim.size();
Coordinate coor(nd);
Lexicographic::CoorFromIndex(coor,oindex,rdim);
int linear=0;
for(int d=0;d<nd;d++){
if(chk_dim_msk[d])
linear=linear+coor[d];
}
return (linear&0x1);
}
// Specialise this for red black grids storing half the data like a chess board.
class GridRedBlackCartesian : public GridBase
{
public:
Coordinate _checker_dim_mask;
// Coordinate _checker_dim_mask;
int _checker_dim;
std::vector<int> _checker_board;