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Bert Vandenbroucke authored
Replaced global variables by a new hydro_space struct that is part of space. This struct is then passed on to hydro_init_part, and used to initialize the Voronoi cells. For non SHADOWFAX_SPH schemes, this struct is empty. Replaced random_uniform declarations in some unit tests with the tools.h version. Added some more comments to 3D Voronoi code; it is now almost completely documented (meaning I almost completely understand it now).
Bert Vandenbroucke authoredReplaced global variables by a new hydro_space struct that is part of space. This struct is then passed on to hydro_init_part, and used to initialize the Voronoi cells. For non SHADOWFAX_SPH schemes, this struct is empty. Replaced random_uniform declarations in some unit tests with the tools.h version. Added some more comments to 3D Voronoi code; it is now almost completely documented (meaning I almost completely understand it now).
space.h 7.72 KiB
/*******************************************************************************
* This file is part of SWIFT.
* Copyright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk)
* Matthieu Schaller (matthieu.schaller@durham.ac.uk)
* 2015 Peter W. Draper (p.w.draper@durham.ac.uk)
* 2016 John A. Regan (john.a.regan@durham.ac.uk)
* Tom Theuns (tom.theuns@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/>.
*
******************************************************************************/
#ifndef SWIFT_SPACE_H
#define SWIFT_SPACE_H
/* Config parameters. */
#include "../config.h"
/* Some standard headers. */
#include <stddef.h>
/* Includes. */
#include "cell.h"
#include "hydro_space.h"
#include "lock.h"
#include "parser.h"
#include "part.h"
#include "space.h"
/* Some constants. */
#define space_cellallocchunk 1000
#define space_splitsize_default 400
#define space_maxsize_default 8000000
#define space_subsize_default 64000000
#define space_maxcount_default 10000
#define space_max_top_level_cells_default 12
#define space_stretch 1.10f
#define space_maxreldx 0.25f
/* Maximum allowed depth of cell splits. */
#define space_cell_maxdepth 52
/* Split size. */
extern int space_splitsize;
extern int space_maxsize;
extern int space_subsize;
extern int space_maxcount;
/* Map shift vector to sortlist. */
extern const int sortlistID[27];
/**
* @brief The space in which the cells and particles reside.
*/
struct space {
/*! Spatial extent. */
double dim[3];
/*! Is the space periodic? */ int periodic;
/*! Extra space information needed for some hydro schemes. */
struct hydro_space hs;
/*! Are we doing gravity? */
int gravity;
/*! Total mass in the system */
double total_mass;
/*! Width of the top-level cells. */
double width[3];
/*! Inverse of the top-level cell width */
double iwidth[3];
/*! The minimum top-level cell width allowed. */
double cell_min;
/*! Current maximum displacement for particles. */
float dx_max;
/*! Space dimensions in number of top-cells. */
int cdim[3];
/*! Maximal depth reached by the tree */
int maxdepth;
/*! Number of top-level cells. */
int nr_cells;
/*! Total number of cells (top- and sub-) */
int tot_cells;
/*! The (level 0) cells themselves. */
struct cell *cells_top;
/*! Buffer of unused cells for the sub-cells. */
struct cell *cells_sub;
/*! The multipoles associated with the top-level (level 0) cells */
struct gravity_tensors *multipoles_top;
/*! Buffer of unused multipoles for the sub-cells. */
struct gravity_tensors *multipoles_sub;
/*! The total number of parts in the space. */
size_t nr_parts, size_parts;
/*! The total number of g-parts in the space. */
size_t nr_gparts, size_gparts;
/*! The total number of g-parts in the space. */
size_t nr_sparts, size_sparts;
/*! The particle data (cells have pointers to this). */
struct part *parts;
/*! The extended particle data (cells have pointers to this). */
struct xpart *xparts;
/*! The g-particle data (cells have pointers to this). */
struct gpart *gparts;
/*! The s-particle data (cells have pointers to this). */
struct spart *sparts;
/*! General-purpose lock for this space. */
swift_lock_type lock;
/*! Number of queues in the system. */
int nr_queues;
/*! Has this space already been sanitized ? */
int sanitized;
/*! The associated engine. */
struct engine *e;
#ifdef WITH_MPI
/*! Buffers for parts that we will receive from foreign cells. */
struct part *parts_foreign;
size_t nr_parts_foreign, size_parts_foreign;
/*! Buffers for g-parts that we will receive from foreign cells. */
struct gpart *gparts_foreign;
size_t nr_gparts_foreign, size_gparts_foreign;
/*! Buffers for g-parts that we will receive from foreign cells. */
struct spart *sparts_foreign;
size_t nr_sparts_foreign, size_sparts_foreign;
#endif
};
/* function prototypes. */
void space_parts_sort(struct space *s, int *ind, size_t N, int min, int max,
int verbose);
void space_gparts_sort(struct space *s, int *ind, size_t N, int min, int max,
int verbose);
void space_sparts_sort(struct space *s, int *ind, size_t N, int min, int max,
int verbose);
void space_getcells(struct space *s, int nr_cells, struct cell **cells);
int space_getsid(struct space *s, struct cell **ci, struct cell **cj,
double *shift);
void space_init(struct space *s, const struct swift_params *params,
double dim[3], struct part *parts, struct gpart *gparts,
struct spart *sparts, size_t Npart, size_t Ngpart,
size_t Nspart, int periodic, int replicate, int gravity,
int verbose, int dry_run);
void space_sanitize(struct space *s);
void space_map_cells_pre(struct space *s, int full,
void (*fun)(struct cell *c, void *data), void *data);
void space_map_parts(struct space *s,
void (*fun)(struct part *p, struct cell *c, void *data),
void *data);
void space_map_parts_xparts(struct space *s,
void (*fun)(struct part *p, struct xpart *xp,
struct cell *c));
void space_map_cells_post(struct space *s, int full,
void (*fun)(struct cell *c, void *data), void *data);
void space_parts_sort_mapper(void *map_data, int num_elements,
void *extra_data);
void space_gparts_sort_mapper(void *map_data, int num_elements,
void *extra_data);
void space_sparts_sort_mapper(void *map_data, int num_elements,
void *extra_data);
void space_rebuild(struct space *s, int verbose);
void space_recycle(struct space *s, struct cell *c);
void space_recycle_list(struct space *s, struct cell *cell_list_begin,
struct cell *cell_list_end,
struct gravity_tensors *multipole_list_begin,
struct gravity_tensors *multipole_list_end);
void space_split(struct space *s, struct cell *cells, int nr_cells,
int verbose);
void space_split_mapper(void *map_data, int num_elements, void *extra_data);
void space_parts_get_cell_index(struct space *s, int *ind, struct cell *cells,
int verbose);void space_gparts_get_cell_index(struct space *s, int *gind, struct cell *cells,
int verbose);
void space_sparts_get_cell_index(struct space *s, int *sind, struct cell *cells,
int verbose);
void space_do_parts_sort();
void space_do_gparts_sort();
void space_do_sparts_sort();
void space_init_parts(struct space *s);
void space_init_gparts(struct space *s);
void space_init_sparts(struct space *s);
void space_link_cleanup(struct space *s);
void space_check_drift_point(struct space *s, integertime_t ti_drift);
void space_check_timesteps(struct space *s);
void space_replicate(struct space *s, int replicate, int verbose);
void space_reset_task_counters(struct space *s);
void space_clean(struct space *s);
#endif /* SWIFT_SPACE_H */