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make grobner quota a parameter

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-01-10 20:08:20 -08:00
parent 06203d227e
commit b577544830
4 changed files with 5 additions and 7 deletions
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7
src/math/lp/nla_core.cpp
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@ -1397,7 +1397,7 @@ std::ostream& core::print_term( const lp::lar_term& t, std::ostream& out) const
void core::run_grobner() {
static unsigned quota = 8;
unsigned& quota = m_grobner_quota;
if (quota == 0) {
return;
}
@ -1418,10 +1418,7 @@ void core::run_grobner() {
IF_VERBOSE(2, verbose_stream() << "grobner conflict\n");
}
else {
if (quota == 1)
quota = 0;
else
quota /= 2;
quota >>= 1;
IF_VERBOSE(2, verbose_stream() << "grobner miss, quota " << quota << "\n");
IF_VERBOSE(4, diagnose_pdd_miss(verbose_stream()));
}

3
src/math/lp/nla_core.h
View file

@ -96,14 +96,13 @@ public:
nla_settings m_nla_settings;
dd::pdd_manager m_pdd_manager;
dd::solver m_pdd_grobner;
private:
emonics m_emons;
svector<lpvar> m_add_buffer;
mutable lp::int_set m_active_var_set;
lp::int_set m_rows;
public:
unsigned m_grobner_quota;
reslimit m_reslim;

1
src/math/lp/nla_params.pyg
View file

@ -13,6 +13,7 @@ def_module_params('nla',
('grobner_expr_degree_growth', UINT, 2, 'grobner\'s maximum expr degree growth'),
('grobner_max_simplified', UINT, 10000, 'grobner\'s maximum number of simplifications'),
('grobner_cnfl_to_report', UINT, 1, 'grobner\'s maximum number of conflicts to report'),
('gr_q', UINT, 8, 'grobner\'s quota'),
('grobner_subs_fixed', BOOL, False, 'substitute fixed variables by constants')
))