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#include <stdio.h>
#include <stdlib.h>
#ifdef SPLITGO_MPI
#include <mpi.h>
#endif
#include "fdc_int.h"
#include "variables.h"
#include "values.h"
#include "constraints.h"
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eef94371
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extern int fd__workers;
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965dadaa
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static void _fd_cleanup(void);
static void _fd_parse_general_options(int *argc, char *argv[])
{
int args = *argc;
int i, j;
bool sort = true; // the default is to sort labelled variables
// variable selection function
_fd_var_select2 = _fd_select_first_var;
// value selection function
_fd_val_select = _fd_val_min;
_fd_val_del_select = _fd_val_del_min;
// variable comparison function
fd__cmp_variables = NULL;
#ifdef SPLITGO
// running mode (the default is to return the first solution)
_fd_counting_solutions = 0;
#endif
for (i = j = 1; i < args; i++)
if (!strcmp(argv[i], "--first-var")) /* variable selection heuristics */
_fd_var_select2 = _fd_select_first_var;
else if (!strcmp(argv[i], "--first-fail"))
{
_fd_var_select2 = _fd_select_first_fail;
if (sort)
fd__cmp_variables = fd__cmp_var_size;
}
else if (!strcmp(argv[i], "--most-constrained"))
{
// once sorted, select the first unassigned variable
if (sort)
fd__cmp_variables = fd__cmp_var_constraints;
else
_fd_var_select2 = _fd_select_most_constrained;
}
else if (!strcmp(argv[i], "--size-degree"))
{
_fd_var_select2 = _fd_select_size_degree;
if (sort)
fd__cmp_variables = fd__cmp_var_size_degree;
}
else if (!strcmp(argv[i], "--most-connected"))
{
// once sorted, select the first unassigned variable
if (sort)
fd__cmp_variables = fd__cmp_var_connections;
else
_fd_var_select2 = _fd_select_most_connected;
}
else if (!strcmp(argv[i], "--random-var"))
_fd_var_select2 = _fd_select_random_var;
else if (!strcmp(argv[i], "--min-value"))
{
_fd_var_select2 = _fd_select_min_value;
if (sort)
fd__cmp_variables = fd__cmp_var_min;
}
else if (!strcmp(argv[i], "--max-value"))
{
_fd_var_select2 = _fd_select_max_value;
if (sort)
fd__cmp_variables = fd__cmp_var_max;
}
else if (!strcmp(argv[i], "--val-min")) /* value selection heuristics */
{
_fd_val_select = _fd_val_min;
_fd_val_del_select = _fd_val_del_min;
}
else if (!strcmp(argv[i], "--val-max"))
{
_fd_val_select = _fd_val_max;
_fd_val_del_select = _fd_val_del_max;
}
else if (!strcmp(argv[i], "--count-solutions")) /* running mode */
#ifdef SPLITGO
_fd_counting_solutions = 1;
#else
;
#endif
else if (!strcmp(argv[i], "--no-sort")) /* miscellaneous */
// Note: the meaning of this option depends on whether it
// appears in the command line before or after the choice of the
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// variable selection heuristic (see the code above)
sort = false;
else if (!strncmp(argv[i], "--workers=", sizeof("--workers=") - 1))
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Salvador Abreu
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fd__workers = atoi(argv[i] + sizeof("--workers=") - 1);
else
argv[j++] = argv[i];
*argc = j;
}
void fd_init(int *argc, char **argv[])
{
#ifdef SPLITGO_MPI
if (MPI_Init(argc, argv))
_fd_fatal("MPI_Init failed");
#endif
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_fd_parse_general_options(argc, *argv);
#ifdef SPLITGO
fd__init_splitgo(argc, *argv);
#endif
#ifdef CONSTRAINT_CLASS
_fd_init_constraints();
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#endif
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#ifdef USE_STORE
_fd_init_main_store();
#endif
}
void fd_end()
{
#ifdef SPLITGO_MPI
{
int rank;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
_fd_cleanup_mpi_state(rank);
}
#endif
_fd_cleanup();
}
// XXX: called from the constraints' initialisation functions
void _fd_add_constraint(fd_constraint constraint)
{
}
int fd_solve()
{
#ifdef DISTRIBUTED_SOLVER
#ifdef PACK_PROBLEM
_fd_pack_problem();
#endif
return _fd_dsolve();
#else // PROPAGATE
#ifdef PACK_PROBLEM
_fd_pack_problem();
#endif
return _fd_filter_domains();
#endif
}
/* it helps finding if all allocated memory is accounted for */
static void _fd_cleanup()
{
extern void _fd_free_value();
int i, j;
#ifndef PACK_PROBLEM
for (i = 0; i < _fd_constraint_count; ++i)
{
fd_constraint c = _fd_constraints[i];
free(c->variables);
if (c->constants)
free(c->constants);
free(c);
}
for (i = 0; i < fd_variables_count && _fd_variables[i]; ++i)
{
_fd_free_value(DOMAIN(_fd_variables[i]));
free(_fd_variables[i]->constraints);
free(_fd_variables[i]);
}
#else /* PACK_PROBLEM */
// XXX: some things are missing
_fd_free_packed_memory();
#endif /* PACK_PROBLEM */
_fd_cleanup_revisions();
#ifdef USE_STORE
free(store);
#endif
// XXX
fd_variables_count = 0;
}
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