SCIP++ refs/heads/main
 
Loading...
Searching...
No Matches
Variables
scippp::params::HEURISTICS::DUALVAL Namespace Reference

Parameters with prefix heuristics/dualval. More...

Variables

constexpr Param< int > DYNAMICDEPTH { "heuristics/dualval/dynamicdepth" }
 says if and how the recursion depth is computed at runtime
 
constexpr Param< bool > FORCEIMPROVEMENTS { "heuristics/dualval/forceimprovements" }
 exit if objective doesn't improve
 
constexpr Param< int > FREQ { "heuristics/dualval/freq" }
 frequency for calling primal heuristic <dualval> (-1: never, 0: only at depth freqofs)
 
constexpr Param< int > FREQOFS { "heuristics/dualval/freqofs" }
 frequency offset for calling primal heuristic <dualval>
 
constexpr Param< int > HEURVERBLEVEL { "heuristics/dualval/heurverblevel" }
 verblevel of the heuristic, default is 0 to display nothing
 
constexpr Param< double > LAMBDAOBJ { "heuristics/dualval/lambdaobj" }
 scaling factor for the objective function
 
constexpr Param< double > LAMBDASLACK { "heuristics/dualval/lambdaslack" }
 value added to objective of slack variables, must not be zero
 
constexpr Param< int > MAXCALLS { "heuristics/dualval/maxcalls" }
 maximal number of recursive calls of the heuristic (if dynamicdepth is off)
 
constexpr Param< int > MAXDEPTH { "heuristics/dualval/maxdepth" }
 maximal depth level to call primal heuristic <dualval> (-1: no limit)
 
constexpr Param< int > MAXEQUALRANKS { "heuristics/dualval/maxequalranks" }
 maximal number of variables that may have maximal rank, quit if there are more, turn off by setting -1
 
constexpr Param< double > MINGAP { "heuristics/dualval/mingap" }
 minimal gap for which we still run the heuristic, if gap is less we return without doing anything
 
constexpr Param< int > NLPVERBLEVEL { "heuristics/dualval/nlpverblevel" }
 verblevel of the nlp solver, can be 0 or 1
 
constexpr Param< bool > ONLYCHEAPER { "heuristics/dualval/onlycheaper" }
 add constraint to ensure that discrete vars are improving
 
constexpr Param< bool > ONLYLEAVES { "heuristics/dualval/onlyleaves" }
 disable the heuristic if it was not called at a leaf of the B&B tree
 
constexpr Param< int > PRIORITY { "heuristics/dualval/priority" }
 priority of heuristic <dualval>
 
constexpr Param< int > RANKVALUE { "heuristics/dualval/rankvalue" }
 number of ranks that should be displayed when the heuristic is called
 
constexpr Param< bool > RELAXCONTVARS { "heuristics/dualval/relaxcontvars" }
 relax the continous variables
 
constexpr Param< bool > RELAXINDICATORS { "heuristics/dualval/relaxindicators" }
 relax the indicator variables by introducing continuous copies
 

Detailed Description

Parameters with prefix heuristics/dualval.

Variable Documentation

◆ DYNAMICDEPTH

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::DYNAMICDEPTH { "heuristics/dualval/dynamicdepth" }
constexpr

says if and how the recursion depth is computed at runtime

Definition at line 2856 of file parameters.hpp.

◆ FORCEIMPROVEMENTS

constexpr Param<bool> scippp::params::HEURISTICS::DUALVAL::FORCEIMPROVEMENTS { "heuristics/dualval/forceimprovements" }
constexpr

exit if objective doesn't improve

Definition at line 2838 of file parameters.hpp.

◆ FREQ

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::FREQ { "heuristics/dualval/freq" }
constexpr

frequency for calling primal heuristic <dualval> (-1: never, 0: only at depth freqofs)

Definition at line 2832 of file parameters.hpp.

◆ FREQOFS

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::FREQOFS { "heuristics/dualval/freqofs" }
constexpr

frequency offset for calling primal heuristic <dualval>

Definition at line 2834 of file parameters.hpp.

◆ HEURVERBLEVEL

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::HEURVERBLEVEL { "heuristics/dualval/heurverblevel" }
constexpr

verblevel of the heuristic, default is 0 to display nothing

Definition at line 2848 of file parameters.hpp.

◆ LAMBDAOBJ

constexpr Param<double> scippp::params::HEURISTICS::DUALVAL::LAMBDAOBJ { "heuristics/dualval/lambdaobj" }
constexpr

scaling factor for the objective function

Definition at line 2864 of file parameters.hpp.

◆ LAMBDASLACK

constexpr Param<double> scippp::params::HEURISTICS::DUALVAL::LAMBDASLACK { "heuristics/dualval/lambdaslack" }
constexpr

value added to objective of slack variables, must not be zero

Definition at line 2862 of file parameters.hpp.

◆ MAXCALLS

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::MAXCALLS { "heuristics/dualval/maxcalls" }
constexpr

maximal number of recursive calls of the heuristic (if dynamicdepth is off)

Definition at line 2854 of file parameters.hpp.

◆ MAXDEPTH

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::MAXDEPTH { "heuristics/dualval/maxdepth" }
constexpr

maximal depth level to call primal heuristic <dualval> (-1: no limit)

Definition at line 2836 of file parameters.hpp.

◆ MAXEQUALRANKS

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::MAXEQUALRANKS { "heuristics/dualval/maxequalranks" }
constexpr

maximal number of variables that may have maximal rank, quit if there are more, turn off by setting -1

Definition at line 2858 of file parameters.hpp.

◆ MINGAP

constexpr Param<double> scippp::params::HEURISTICS::DUALVAL::MINGAP { "heuristics/dualval/mingap" }
constexpr

minimal gap for which we still run the heuristic, if gap is less we return without doing anything

Definition at line 2860 of file parameters.hpp.

◆ NLPVERBLEVEL

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::NLPVERBLEVEL { "heuristics/dualval/nlpverblevel" }
constexpr

verblevel of the nlp solver, can be 0 or 1

Definition at line 2850 of file parameters.hpp.

◆ ONLYCHEAPER

constexpr Param<bool> scippp::params::HEURISTICS::DUALVAL::ONLYCHEAPER { "heuristics/dualval/onlycheaper" }
constexpr

add constraint to ensure that discrete vars are improving

Definition at line 2840 of file parameters.hpp.

◆ ONLYLEAVES

constexpr Param<bool> scippp::params::HEURISTICS::DUALVAL::ONLYLEAVES { "heuristics/dualval/onlyleaves" }
constexpr

disable the heuristic if it was not called at a leaf of the B&B tree

Definition at line 2842 of file parameters.hpp.

◆ PRIORITY

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::PRIORITY { "heuristics/dualval/priority" }
constexpr

priority of heuristic <dualval>

Definition at line 2830 of file parameters.hpp.

◆ RANKVALUE

constexpr Param<int> scippp::params::HEURISTICS::DUALVAL::RANKVALUE { "heuristics/dualval/rankvalue" }
constexpr

number of ranks that should be displayed when the heuristic is called

Definition at line 2852 of file parameters.hpp.

◆ RELAXCONTVARS

constexpr Param<bool> scippp::params::HEURISTICS::DUALVAL::RELAXCONTVARS { "heuristics/dualval/relaxcontvars" }
constexpr

relax the continous variables

Definition at line 2846 of file parameters.hpp.

◆ RELAXINDICATORS

constexpr Param<bool> scippp::params::HEURISTICS::DUALVAL::RELAXINDICATORS { "heuristics/dualval/relaxindicators" }
constexpr

relax the indicator variables by introducing continuous copies

Definition at line 2844 of file parameters.hpp.