scippp::params::SEPARATING::GOMORY Namespace Reference

Parameters with prefix separating/gomory. More...

Variables
constexpr Param< double >	AWAY { "separating/gomory/away" }
	minimal integrality violation of a basis variable in order to try Gomory cut
constexpr Param< bool >	DELAY { "separating/gomory/delay" }
	should separator be delayed, if other separators found cuts?
constexpr Param< bool >	DELAYEDCUTS { "separating/gomory/delayedcuts" }
	should cuts be added to the delayed cut pool?
constexpr Param< bool >	DYNAMICCUTS { "separating/gomory/dynamiccuts" }
	should generated cuts be removed from the LP if they are no longer tight?
constexpr Param< int >	EXPBACKOFF { "separating/gomory/expbackoff" }
	base for exponential increase of frequency at which separator <gomory> is called (1: call at each multiple of frequency)
constexpr Param< bool >	FORCECUTS { "separating/gomory/forcecuts" }
	if conversion to integral coefficients failed still consider the cut
constexpr Param< int >	FREQ { "separating/gomory/freq" }
	frequency for calling separator <gomory> (-1: never, 0: only in root node)
constexpr Param< bool >	GENBOTHGOMSCG { "separating/gomory/genbothgomscg" }
	Should both Gomory and strong CG cuts be generated (otherwise take best)?
constexpr Param< bool >	MAKEINTEGRAL { "separating/gomory/makeintegral" }
	try to scale cuts to integral coefficients
constexpr Param< double >	MAXBOUNDDIST { "separating/gomory/maxbounddist" }
	maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying separator <gomory> (0.0: only on current best node, 1.0: on all nodes)
constexpr Param< int >	MAXRANK { "separating/gomory/maxrank" }
	maximal rank of a gomory cut that could not be scaled to integral coefficients (-1: unlimited)
constexpr Param< int >	MAXRANKINTEGRAL { "separating/gomory/maxrankintegral" }
	maximal rank of a gomory cut that could be scaled to integral coefficients (-1: unlimited)
constexpr Param< int >	MAXROUNDS { "separating/gomory/maxrounds" }
	maximal number of gomory separation rounds per node (-1: unlimited)
constexpr Param< int >	MAXROUNDSROOT { "separating/gomory/maxroundsroot" }
	maximal number of gomory separation rounds in the root node (-1: unlimited)
constexpr Param< int >	MAXSEPACUTS { "separating/gomory/maxsepacuts" }
	maximal number of gomory cuts separated per separation round
constexpr Param< int >	MAXSEPACUTSROOT { "separating/gomory/maxsepacutsroot" }
	maximal number of gomory cuts separated per separation round in the root node
constexpr Param< int >	PRIORITY { "separating/gomory/priority" }
	priority of separator <gomory>
constexpr Param< bool >	SEPARATEROWS { "separating/gomory/separaterows" }
	separate rows with integral slack
constexpr Param< bool >	SIDETYPEBASIS { "separating/gomory/sidetypebasis" }
	choose side types of row (lhs/rhs) based on basis information?
constexpr Param< bool >	TRYSTRONGCG { "separating/gomory/trystrongcg" }
	try to generate strengthened Chvatal-Gomory cuts?

Detailed Description

Parameters with prefix separating/gomory.

Variable Documentation

AWAY

constexpr Param<double> scippp::params::SEPARATING::GOMORY::AWAY { "separating/gomory/away" }

constexpr

minimal integrality violation of a basis variable in order to try Gomory cut

Definition at line 5953 of file parameters.hpp.

DELAY

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::DELAY { "separating/gomory/delay" }

constexpr

should separator be delayed, if other separators found cuts?

Definition at line 5936 of file parameters.hpp.

DELAYEDCUTS

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::DELAYEDCUTS { "separating/gomory/delayedcuts" }

constexpr

should cuts be added to the delayed cut pool?

Definition at line 5963 of file parameters.hpp.

DYNAMICCUTS

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::DYNAMICCUTS { "separating/gomory/dynamiccuts" }

constexpr

should generated cuts be removed from the LP if they are no longer tight?

Definition at line 5955 of file parameters.hpp.

EXPBACKOFF

constexpr Param<int> scippp::params::SEPARATING::GOMORY::EXPBACKOFF { "separating/gomory/expbackoff" }

constexpr

base for exponential increase of frequency at which separator <gomory> is called (1: call at each multiple of frequency)

Definition at line 5939 of file parameters.hpp.

FORCECUTS

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::FORCECUTS { "separating/gomory/forcecuts" }

constexpr

if conversion to integral coefficients failed still consider the cut

Definition at line 5959 of file parameters.hpp.

FREQ

constexpr Param<int> scippp::params::SEPARATING::GOMORY::FREQ { "separating/gomory/freq" }

constexpr

frequency for calling separator <gomory> (-1: never, 0: only in root node)

Definition at line 5931 of file parameters.hpp.

GENBOTHGOMSCG

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::GENBOTHGOMSCG { "separating/gomory/genbothgomscg" }

constexpr

Should both Gomory and strong CG cuts be generated (otherwise take best)?

Definition at line 5969 of file parameters.hpp.

MAKEINTEGRAL

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::MAKEINTEGRAL { "separating/gomory/makeintegral" }

constexpr

try to scale cuts to integral coefficients

Definition at line 5957 of file parameters.hpp.

MAXBOUNDDIST

constexpr Param<double> scippp::params::SEPARATING::GOMORY::MAXBOUNDDIST { "separating/gomory/maxbounddist" }

constexpr

maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying separator <gomory> (0.0: only on current best node, 1.0: on all nodes)

Definition at line 5934 of file parameters.hpp.

MAXRANK

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXRANK { "separating/gomory/maxrank" }

constexpr

maximal rank of a gomory cut that could not be scaled to integral coefficients (-1: unlimited)

Definition at line 5949 of file parameters.hpp.

MAXRANKINTEGRAL

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXRANKINTEGRAL { "separating/gomory/maxrankintegral" }

constexpr

maximal rank of a gomory cut that could be scaled to integral coefficients (-1: unlimited)

Definition at line 5951 of file parameters.hpp.

MAXROUNDS

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXROUNDS { "separating/gomory/maxrounds" }

constexpr

maximal number of gomory separation rounds per node (-1: unlimited)

Definition at line 5941 of file parameters.hpp.

MAXROUNDSROOT

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXROUNDSROOT { "separating/gomory/maxroundsroot" }

constexpr

maximal number of gomory separation rounds in the root node (-1: unlimited)

Definition at line 5943 of file parameters.hpp.

MAXSEPACUTS

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXSEPACUTS { "separating/gomory/maxsepacuts" }

constexpr

maximal number of gomory cuts separated per separation round

Definition at line 5945 of file parameters.hpp.

MAXSEPACUTSROOT

constexpr Param<int> scippp::params::SEPARATING::GOMORY::MAXSEPACUTSROOT { "separating/gomory/maxsepacutsroot" }

constexpr

maximal number of gomory cuts separated per separation round in the root node

Definition at line 5947 of file parameters.hpp.

PRIORITY

constexpr Param<int> scippp::params::SEPARATING::GOMORY::PRIORITY { "separating/gomory/priority" }

constexpr

priority of separator <gomory>

Definition at line 5929 of file parameters.hpp.

SEPARATEROWS

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::SEPARATEROWS { "separating/gomory/separaterows" }

constexpr

separate rows with integral slack

Definition at line 5961 of file parameters.hpp.

SIDETYPEBASIS

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::SIDETYPEBASIS { "separating/gomory/sidetypebasis" }

constexpr

choose side types of row (lhs/rhs) based on basis information?

Definition at line 5965 of file parameters.hpp.

TRYSTRONGCG

constexpr Param<bool> scippp::params::SEPARATING::GOMORY::TRYSTRONGCG { "separating/gomory/trystrongcg" }

constexpr

try to generate strengthened Chvatal-Gomory cuts?

Definition at line 5967 of file parameters.hpp.