scippp::params::CONSTRAINTS::BENDERSLP Namespace Reference

Parameters with prefix constraints/benderslp. More...

Variables
constexpr Param< bool >	ACTIVE { "constraints/benderslp/active" }
	is the Benders' decomposition LP cut constraint handler active?
constexpr Param< bool >	DELAYPROP { "constraints/benderslp/delayprop" }
	should propagation method be delayed, if other propagators found reductions?
constexpr Param< bool >	DELAYSEPA { "constraints/benderslp/delaysepa" }
	should separation method be delayed, if other separators found cuts?
constexpr Param< int >	DEPTHFREQ { "constraints/benderslp/depthfreq" }
	the depth frequency for generating LP cuts after the max depth is reached (0: never, 1: all nodes, ...)
constexpr Param< int >	EAGERFREQ { "constraints/benderslp/eagerfreq" }
	frequency for using all instead of only the useful constraints in separation, propagation and enforcement (-1: never, 0: only in first evaluation)
constexpr Param< int >	ITERLIMIT { "constraints/benderslp/iterlimit" }
	after the root node, only iterlimit fractional LP solutions are used at each node to generate Benders' decomposition cuts.
constexpr Param< int >	MAXDEPTH { "constraints/benderslp/maxdepth" }
	depth at which Benders' decomposition cuts are generated from the LP solution (-1: always, 0: only at root)
constexpr Param< int >	MAXPREROUNDS { "constraints/benderslp/maxprerounds" }
	maximal number of presolving rounds the constraint handler participates in (-1: no limit)
constexpr Param< int >	PRESOLTIMING { "constraints/benderslp/presoltiming" }
	timing mask of the constraint handler's presolving method (4:FAST, 8:MEDIUM, 16:EXHAUSTIVE, 32:FINAL)
constexpr Param< int >	PROPFREQ { "constraints/benderslp/propfreq" }
	frequency for propagating domains (-1: never, 0: only in root node)
constexpr Param< int >	PROPTIMING { "constraints/benderslp/proptiming" }
	timing when constraint propagation should be called (1:BEFORELP, 2:DURINGLPLOOP, 4:AFTERLPLOOP, 15:ALWAYS)
constexpr Param< int >	SEPAFREQ { "constraints/benderslp/sepafreq" }
	frequency for separating cuts (-1: never, 0: only in root node)
constexpr Param< int >	STALLLIMIT { "constraints/benderslp/stalllimit" }
	the number of nodes processed without a dual bound improvement before enforcing the LP relaxation, 0: no stall count applied

Detailed Description

Parameters with prefix constraints/benderslp.

Variable Documentation

ACTIVE

constexpr Param<bool> scippp::params::CONSTRAINTS::BENDERSLP::ACTIVE { "constraints/benderslp/active" }

constexpr

is the Benders' decomposition LP cut constraint handler active?

Definition at line 870 of file parameters.hpp.

DELAYPROP

constexpr Param<bool> scippp::params::CONSTRAINTS::BENDERSLP::DELAYPROP { "constraints/benderslp/delayprop" }

constexpr

should propagation method be delayed, if other propagators found reductions?

Definition at line 856 of file parameters.hpp.

DELAYSEPA

constexpr Param<bool> scippp::params::CONSTRAINTS::BENDERSLP::DELAYSEPA { "constraints/benderslp/delaysepa" }

constexpr

should separation method be delayed, if other separators found cuts?

Definition at line 854 of file parameters.hpp.

DEPTHFREQ

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::DEPTHFREQ { "constraints/benderslp/depthfreq" }

constexpr

the depth frequency for generating LP cuts after the max depth is reached (0: never, 1: all nodes, ...)

Definition at line 862 of file parameters.hpp.

EAGERFREQ

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::EAGERFREQ { "constraints/benderslp/eagerfreq" }

constexpr

frequency for using all instead of only the useful constraints in separation, propagation and enforcement (-1: never, 0: only in first evaluation)

Definition at line 850 of file parameters.hpp.

ITERLIMIT

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::ITERLIMIT { "constraints/benderslp/iterlimit" }

constexpr

after the root node, only iterlimit fractional LP solutions are used at each node to generate Benders' decomposition cuts.

Definition at line 868 of file parameters.hpp.

MAXDEPTH

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::MAXDEPTH { "constraints/benderslp/maxdepth" }

constexpr

depth at which Benders' decomposition cuts are generated from the LP solution (-1: always, 0: only at root)

Definition at line 860 of file parameters.hpp.

MAXPREROUNDS

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::MAXPREROUNDS { "constraints/benderslp/maxprerounds" }

constexpr

maximal number of presolving rounds the constraint handler participates in (-1: no limit)

Definition at line 852 of file parameters.hpp.

PRESOLTIMING

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::PRESOLTIMING { "constraints/benderslp/presoltiming" }

constexpr

timing mask of the constraint handler's presolving method (4:FAST, 8:MEDIUM, 16:EXHAUSTIVE, 32:FINAL)

Definition at line 858 of file parameters.hpp.

PROPFREQ

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::PROPFREQ { "constraints/benderslp/propfreq" }

constexpr

frequency for propagating domains (-1: never, 0: only in root node)

Definition at line 845 of file parameters.hpp.

PROPTIMING

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::PROPTIMING { "constraints/benderslp/proptiming" }

constexpr

timing when constraint propagation should be called (1:BEFORELP, 2:DURINGLPLOOP, 4:AFTERLPLOOP, 15:ALWAYS)

Definition at line 847 of file parameters.hpp.

SEPAFREQ

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::SEPAFREQ { "constraints/benderslp/sepafreq" }

constexpr

frequency for separating cuts (-1: never, 0: only in root node)

Definition at line 843 of file parameters.hpp.

STALLLIMIT

constexpr Param<int> scippp::params::CONSTRAINTS::BENDERSLP::STALLLIMIT { "constraints/benderslp/stalllimit" }

constexpr

the number of nodes processed without a dual bound improvement before enforcing the LP relaxation, 0: no stall count applied

Definition at line 865 of file parameters.hpp.