| //------------------------------------------------------------------------------------------------------------------------------ |
| // Samuel Williams |
| // SWWilliams@lbl.gov |
| // Lawrence Berkeley National Lab |
| //------------------------------------------------------------------------------------------------------------------------------ |
| #ifndef BOX_H |
| #define BOX_H |
| |
| typedef struct { |
| double h; // h at this level (==hLevel == h0 * (double)(1<<level) ) |
| struct {int i, j, k;}low; // global coordinates of the first (non-ghost) element of subdomain |
| struct {int i, j, k;}dim; // dimensions of this box's core (not counting ghost zone) |
| struct {int i, j, k;}dim_with_ghosts; // dimensions of this box's core (not counting ghost zone) |
| int ghosts; // ghost zone depth |
| int pencil,plane,volume; // useful for offsets |
| int numGrids; |
| int boundaryCondition[27]; // = boundary conditions in each of the 26 different dirrections (ignoring direction 13) |
| //int bufsizes[27]; // = sizes of extracted surfaces and ghost zones (pointer to array of 27 elements) |
| //double * __restrict__ surface_bufs[27]; // = extracted surface (rhs on the way down, correction on the way up) |
| //double * __restrict__ ghost_bufs[27]; // = incoming ghost zone (rhs on the way down, correction on the way up) |
| double ** __restrict__ grids; // grids[g] = pointer to grid for component g |
| uint64_t * __restrict__ RedBlack_64bMask; // Red/Black Mask (i.e. 0x0000000000000000ull or 0xFFFFFFFFFFFFFFFFull) within one plane (dim_with_ghosts^2) |
| double * __restrict__ RedBlack_FP[2]; // Red/Black Mask (i.e. 0.0 or 1.0) for even/odd planes (dim_with_ghosts^2). used to zero out changes to phi... x = x + RedBlack[][]*Dinv*(rhs-Ax); |
| uint8_t * __restrict__ RedBlack_4bMask; // Red/Black 4bit bit mask (i.e. 4 elements = 0000b ... 1111b ) for the whole volume. Ideally, you can convert a 4b mask into a 256b (4x64b) bitmask for AVX/QPX operations |
| } box_type; |
| //------------------------------------------------------------------------------------------------------------------------------ |
| void destroy_box(box_type *box); |
| int create_box(box_type *box, int numGrids, int low_i, int low_j, int low_k, int dim_i, int dim_j, int dim_k, int ghosts); |
| #endif |
