Tolerances Class Reference

#include <spxdefines.h>

Public Member Functions
	Tolerances ()
Access / modification
Real	epsilon ()
	global zero epsilon
void	setEpsilon (Real eps)
	set global zero epsilon
Real	epsilonFactorization ()
	zero espilon used in factorization
void	setEpsilonFactorization (Real eps)
	set zero espilon used in factorization
Real	epsilonUpdate ()
	zero espilon used in factorization update
void	setEpsilonUpdate (Real eps)
	set zero espilon used in factorization update
Real	epsilonPivot ()
	zero espilon used in pivot
void	setEpsilonPivot (Real eps)
	set zero espilon used in pivot
Real	feastol ()
	global feasibility tolerance
void	setFeastol (Real ftol)
	set global feasibility tolerance
Real	opttol ()
	global optimality tolerance
void	setOpttol (Real otol)
	set global optimality tolerance
Real	floatingPointFeastol ()
	floating point feasibility tolerance used within the solver
void	setFloatingPointFeastol (Real ftol)
	set floating point feasibility tolerance used within the solver
Real	floatingPointOpttol ()
	floating point optimality tolerance used within the solver
void	setFloatingPointOpttol (Real otol)
	set floating point optimality tolerance used within the solver
Real	scaleAccordingToEpsilon (Real a)
	scale a value such that it remains unchanged at default epsilon, but is scaled withs smaller epsilon values this is updated in setEpsilon()

Private Attributes
Data
Real	s_epsilon
	default allowed additive zero: 1.0 + EPS_ZERO == 1.0
Real	s_epsilon_factorization
	epsilon for factorization
Real	s_epsilon_update
	epsilon for factorization update
Real	s_epsilon_pivot
	epsilon for pivot zero tolerance in factorization
Real	s_feastol
	feasibility tolerance
Real	s_opttol
	optimality tolerance
Real	s_floating_point_feastol
	floating point feasibility tolerance
Real	s_floating_point_opttol
	floating point optimality tolerance
Real	s_epsilon_multiplier
	multiplier for fixed numbers that should change if s_epsilon changes

Detailed Description

Definition at line 320 of file spxdefines.h.

Constructor & Destructor Documentation

Tolerances()

Tolerances ( )

explicit

Definition at line 350 of file spxdefines.h.

References s_epsilon, s_epsilon_factorization, s_epsilon_multiplier, s_epsilon_pivot, s_epsilon_update, s_feastol, s_floating_point_feastol, s_floating_point_opttol, s_opttol, SOPLEX_DEFAULT_BND_VIOL, SOPLEX_DEFAULT_EPS_FACTOR, SOPLEX_DEFAULT_EPS_PIVOR, SOPLEX_DEFAULT_EPS_UPDATE, and SOPLEX_DEFAULT_EPS_ZERO.

Member Function Documentation

epsilon()

Real epsilon

(

)

global zero epsilon

Definition at line 56 of file spxdefines.cpp.

References s_epsilon.

epsilonFactorization()

Real epsilonFactorization

(

)

zero espilon used in factorization

Definition at line 68 of file spxdefines.cpp.

References s_epsilon_factorization.

epsilonPivot()

Real epsilonPivot

(

)

zero espilon used in pivot

Definition at line 89 of file spxdefines.cpp.

References s_epsilon_pivot.

epsilonUpdate()

Real epsilonUpdate

(

)

zero espilon used in factorization update

Definition at line 79 of file spxdefines.cpp.

References s_epsilon_update.

feastol()

Real feastol

(

)

global feasibility tolerance

Definition at line 99 of file spxdefines.cpp.

References s_feastol.

floatingPointFeastol()

Real floatingPointFeastol

(

)

floating point feasibility tolerance used within the solver

Definition at line 119 of file spxdefines.cpp.

References s_floating_point_feastol.

floatingPointOpttol()

Real floatingPointOpttol

(

)

floating point optimality tolerance used within the solver

Definition at line 129 of file spxdefines.cpp.

References s_floating_point_opttol.

opttol()

Real opttol

(

)

global optimality tolerance

Definition at line 109 of file spxdefines.cpp.

References s_opttol.

scaleAccordingToEpsilon()

Real scaleAccordingToEpsilon

(

Real

a

)

scale a value such that it remains unchanged at default epsilon, but is scaled withs smaller epsilon values this is updated in setEpsilon()

Definition at line 396 of file spxdefines.h.

References s_epsilon_multiplier.

setEpsilon()

void setEpsilon

(

Real

eps

)

set global zero epsilon

Definition at line 61 of file spxdefines.cpp.

References s_epsilon, s_epsilon_multiplier, and SOPLEX_DEFAULT_EPS_ZERO.

setEpsilonFactorization()

void setEpsilonFactorization

(

Real

eps

)

set zero espilon used in factorization

Definition at line 73 of file spxdefines.cpp.

References s_epsilon_factorization.

setEpsilonPivot()

void setEpsilonPivot

(

Real

eps

)

set zero espilon used in pivot

Definition at line 94 of file spxdefines.cpp.

References s_epsilon_pivot.

setEpsilonUpdate()

void setEpsilonUpdate

(

Real

eps

)

set zero espilon used in factorization update

Definition at line 84 of file spxdefines.cpp.

References s_epsilon_update.

setFeastol()

void setFeastol

(

Real

ftol

)

set global feasibility tolerance

Definition at line 104 of file spxdefines.cpp.

References s_feastol.

setFloatingPointFeastol()

void setFloatingPointFeastol

(

Real

ftol

)

set floating point feasibility tolerance used within the solver

Definition at line 124 of file spxdefines.cpp.

References s_floating_point_feastol.

setFloatingPointOpttol()

void setFloatingPointOpttol

(

Real

otol

)

set floating point optimality tolerance used within the solver

Definition at line 134 of file spxdefines.cpp.

References s_floating_point_opttol.

setOpttol()

void setOpttol

(

Real

otol

)

set global optimality tolerance

Definition at line 114 of file spxdefines.cpp.

References s_opttol.

Member Data Documentation

s_epsilon

Real s_epsilon

private

default allowed additive zero: 1.0 + EPS_ZERO == 1.0

Definition at line 328 of file spxdefines.h.

Referenced by epsilon(), setEpsilon(), and Tolerances().

s_epsilon_factorization

Real s_epsilon_factorization

private

epsilon for factorization

Definition at line 330 of file spxdefines.h.

Referenced by epsilonFactorization(), setEpsilonFactorization(), and Tolerances().

s_epsilon_multiplier

Real s_epsilon_multiplier

private

multiplier for fixed numbers that should change if s_epsilon changes

Definition at line 344 of file spxdefines.h.

Referenced by scaleAccordingToEpsilon(), setEpsilon(), and Tolerances().

s_epsilon_pivot

Real s_epsilon_pivot

private

epsilon for pivot zero tolerance in factorization

Definition at line 334 of file spxdefines.h.

Referenced by epsilonPivot(), setEpsilonPivot(), and Tolerances().

s_epsilon_update

Real s_epsilon_update

private

epsilon for factorization update

Definition at line 332 of file spxdefines.h.

Referenced by epsilonUpdate(), setEpsilonUpdate(), and Tolerances().

s_feastol

Real s_feastol

private

feasibility tolerance

Definition at line 336 of file spxdefines.h.

Referenced by feastol(), setFeastol(), and Tolerances().

s_floating_point_feastol

Real s_floating_point_feastol

private

floating point feasibility tolerance

Definition at line 340 of file spxdefines.h.

Referenced by floatingPointFeastol(), setFloatingPointFeastol(), and Tolerances().

s_floating_point_opttol

Real s_floating_point_opttol

private

floating point optimality tolerance

Definition at line 342 of file spxdefines.h.

Referenced by floatingPointOpttol(), setFloatingPointOpttol(), and Tolerances().

s_opttol

Real s_opttol

private

optimality tolerance

Definition at line 338 of file spxdefines.h.

Referenced by opttol(), setOpttol(), and Tolerances().