-
Pedro Gonnet authored
Former-commit-id: fce1166cf2800c7a2f37c0448226dd9d3149f4f6
Pedro Gonnet authoredFormer-commit-id: fce1166cf2800c7a2f37c0448226dd9d3149f4f6
cell.h 2.92 KiB
/*******************************************************************************
* This file is part of SWIFT.
* Coypright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
/* Some constants. */
#define cell_sid_dt 13
/* The queue timers. */
enum {
cell_timer_none = 0,
cell_timer_tree,
cell_timer_count,
};
extern ticks cell_timer[ cell_timer_count ];
/* Structure to store the data of a single cell. */
struct cell {
/* The cell location on the grid. */
double loc[3];
/* The cell dimensions. */
double h[3];
/* Max radii in this cell. */
double h_max;
/* Minimum and maximum dt in this cell. */
double dt_min, dt_max;
/* The depth of this cell in the tree. */
int depth, split;
/* Nr of parts. */
int count;
/* Pointers to the particle data. */
struct part *parts;
struct cpart *cparts;
/* Pointers for the sorted indices. */
struct entry *sort;
/* Number of pairs associated with this cell. */
// int nr_pairs;
/* Pointers to the next level of cells. */
struct cell *progeny[8];
/* Parent cell. */
struct cell *parent;
/* Super cell, i.e. the highest-level supercell that has interactions. */
struct cell *super;
/* The tasks computing this cell's sorts. */
struct task *sorts[13];
/* The tasks computing this cell's density. */
struct task *density[27];
int nr_density;
/* The ghost task to link density to interactions. */
struct task *ghost;
/* Number of tasks that are associated with this cell. */
int nr_tasks;
/* Number of tasks this cell is waiting for and whether it is in use. */
int wait;
/* Is the data of this cell being used in a sub-cell? */
int hold;
/* Spin lock for various uses. */
lock_type lock;
/* ID of the previous owner, e.g. runner. */
int owner;
/* Linking pointer for "memory management". */
struct cell *next;
} __attribute__((aligned (64)));
/* Function prototypes. */
void cell_split ( struct cell *c );
int cell_locktree( struct cell *c );
void cell_unlocktree( struct cell *c );