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configuration update to SAT solver on creation time. Adding random_seed to sat parameters to enable command-line and module mode to work at the level of sat solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-09-26 16:42:11 -07:00
parent 9412890c63
commit e57e5328ce
4 changed files with 8 additions and 3 deletions
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5
src/sat/sat_config.cpp
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@ -68,7 +68,10 @@ namespace sat {
m_restart_factor = p.restart_factor();
m_random_freq = p.random_freq();
m_random_seed = p.random_seed();
if (m_random_seed == 0)
m_random_seed = _p.get_uint("random_seed", 0);
m_burst_search = p.burst_search();
m_max_conflicts = p.max_conflicts();

1
src/sat/sat_config.h
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@ -53,6 +53,7 @@ namespace sat {
unsigned m_restart_initial;
double m_restart_factor; // for geometric case
double m_random_freq;
unsigned m_random_seed;
unsigned m_burst_search;
unsigned m_max_conflicts;

1
src/sat/sat_params.pyg
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@ -9,6 +9,7 @@ def_module_params('sat',
('restart.initial', UINT, 100, 'initial restart (number of conflicts)'),
('restart.factor', DOUBLE, 1.5, 'restart increment factor for geometric strategy'),
('random_freq', DOUBLE, 0.01, 'frequency of random case splits'),
('random_seed', UINT, 0, 'random seed'),
('burst_search', UINT, 100, 'number of conflicts before first global simplification'),
('max_conflicts', UINT, UINT_MAX, 'maximum number of conflicts'),
('gc', SYMBOL, 'glue_psm', 'garbage collection strategy: psm, glue, glue_psm, dyn_psm'),

4
src/sat/sat_solver.cpp
View file

@ -46,7 +46,7 @@ namespace sat {
m_qhead(0),
m_scope_lvl(0),
m_params(p) {
m_config.updt_params(p);
updt_params(p);
}
solver::~solver() {
@ -1972,7 +1972,7 @@ namespace sat {
m_asymm_branch.updt_params(p);
m_probing.updt_params(p);
m_scc.updt_params(p);
m_rand.set_seed(p.get_uint("random_seed", 0));
m_rand.set_seed(m_config.m_random_seed);
}
void solver::collect_param_descrs(param_descrs & d) {