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taking changes from the fork

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2017-05-10 10:43:01 -07:00
parent 74ac58de2b
commit cf695ab876
8 changed files with 72 additions and 657 deletions
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11
src/util/lp/lp_settings.h
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@ -25,9 +25,10 @@ enum class column_type {
};
enum class simplex_strategy_enum {
undecided = 3,
tableau_rows = 0,
tableau_costs = 1,
no_tableau = 2
lu = 2
};
std::string column_type_to_string(column_type t);
@ -236,8 +237,13 @@ public:
return m_simplex_strategy;
}
bool use_lu() const {
return m_simplex_strategy == simplex_strategy_enum::lu;
}
bool use_tableau() const {
return m_simplex_strategy != simplex_strategy_enum::no_tableau;
return m_simplex_strategy == simplex_strategy_enum::tableau_rows ||
m_simplex_strategy == simplex_strategy_enum::tableau_costs;
}
bool use_tableau_rows() const {
@ -257,6 +263,7 @@ public:
static unsigned long random_next;
unsigned max_row_length_for_bound_propagation = 300;
bool backup_costs = true;
unsigned column_number_threshold_for_using_lu_in_lar_solver = 4000;
}; // end of lp_settings class