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50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
#ifndef GRID_LEBESGUE_H
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#define GRID_LEBESGUE_H
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#include<vector>
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// Lebesgue, Morton, Z-graph ordering assistance
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namespace Grid {
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class LebesgueOrder {
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public:
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typedef int32_t IndexInteger;
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static int UseLebesgueOrder;
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GridBase *grid;
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public:
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LebesgueOrder(GridBase *_grid);
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inline IndexInteger Reorder(IndexInteger ss) {
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return _LebesgueReorder[ss] ;
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};
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////////////////////////////
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// Space filling fractal for cache oblivious
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////////////////////////////
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void ZGraph(void);
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IndexInteger alignup(IndexInteger n);
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/////////////////////////////////
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// Cartesian stencil blocking strategy
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/////////////////////////////////
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static std::vector<int> Block;
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void CartesianBlocking(void);
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void IterateO(int ND,int dim,
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std::vector<IndexInteger> & xo,
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std::vector<IndexInteger> & xi,
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std::vector<IndexInteger> &dims);
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void IterateI(int ND,int dim,
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std::vector<IndexInteger> & xo,
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std::vector<IndexInteger> & xi,
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std::vector<IndexInteger> &dims);
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private:
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std::vector<IndexInteger> _LebesgueReorder;
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};
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}
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#endif
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