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move some functionality from nla_solver to rooted_mons

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Signed-off-by: Lev <levnach@hotmail.com>
This commit is contained in:
Lev 2018-12-06 11:55:53 -10:00 • committed by Lev Nachmanson
parent b43a0e184c
commit 64a7231079
3 changed files with 69 additions and 55 deletions
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52
src/util/lp/rooted_mons.h
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@ -19,6 +19,7 @@
--*/
#pragma once
#include "util/lp/lp_utils.h"
namespace nla {
struct rooted_mon {
svector<lpvar> m_vars;
@ -84,5 +85,56 @@ struct rooted_mon_table {
return m_rooted_monomials_containing_var;
}
std::unordered_map<unsigned, std::unordered_set<unsigned>>& factor_to_product() {
return m_rooted_factor_to_product;
}
const std::unordered_map<unsigned, std::unordered_set<unsigned>>& factor_to_product() const {
return m_rooted_factor_to_product;
}
void reduce_set_by_checking_proper_containment(std::unordered_set<unsigned>& p,
const rooted_mon & rm ) {
for (auto it = p.begin(); it != p.end();) {
if (lp::is_proper_factor(rm.m_vars, vec()[*it].m_vars)) {
it++;
continue;
}
auto iit = it;
iit ++;
p.erase(it);
it = iit;
}
}
// here i is the index of a monomial in m_vector_of_rooted_monomials
void find_rooted_monomials_containing_rm(unsigned i_rm) {
const auto & rm = vec()[i_rm];
std::unordered_set<unsigned> p = var_map()[rm[0]];
// TRACE("nla_solver",
// tout << "i_rm = " << i_rm << ", rm = ";
// print_rooted_monomial(rm, tout);
// tout << "\n rm[0] =" << rm[0] << " var = ";
// print_var(rm[0], tout);
// tout << "\n";
// trace_print_rms(p, tout);
// );
for (unsigned k = 1; k < rm.size(); k++) {
intersect_set(p, var_map()[rm[k]]);
}
// TRACE("nla_solver", trace_print_rms(p, tout););
reduce_set_by_checking_proper_containment(p, rm);
// TRACE("nla_solver", trace_print_rms(p, tout););
factor_to_product()[i_rm] = p;
}
void fill_rooted_factor_to_product() {
for (unsigned i = 0; i < vec().size(); i++) {
find_rooted_monomials_containing_rm(i);
}
}
};
}