Tolerances Class Reference

#include <spxdefines.h>

Public Member Functions
	Tolerances ()
Access / modification
Real	epsilon ()
	global zero epsilon More...
void	setEpsilon (Real eps)
	set global zero epsilon More...
Real	epsilonFactorization ()
	zero espilon used in factorization More...
void	setEpsilonFactorization (Real eps)
	set zero espilon used in factorization More...
Real	epsilonUpdate ()
	zero espilon used in factorization update More...
void	setEpsilonUpdate (Real eps)
	set zero espilon used in factorization update More...
Real	epsilonPivot ()
	zero espilon used in pivot More...
void	setEpsilonPivot (Real eps)
	set zero espilon used in pivot More...
Real	feastol ()
	global feasibility tolerance More...
void	setFeastol (Real ftol)
	set global feasibility tolerance More...
Real	opttol ()
	global optimality tolerance More...
void	setOpttol (Real otol)
	set global optimality tolerance More...
Real	floatingPointFeastol ()
	floating point feasibility tolerance used within the solver More...
void	setFloatingPointFeastol (Real ftol)
	set floating point feasibility tolerance used within the solver More...
Real	floatingPointOpttol ()
	floating point optimality tolerance used within the solver More...
void	setFloatingPointOpttol (Real otol)
	set floating point optimality tolerance used within the solver More...
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() More...

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

Detailed Description

Definition at line 304 of file spxdefines.h.

Constructor & Destructor Documentation

Tolerances()

Tolerances ( )

explicit

Definition at line 334 of file spxdefines.h.

Member Function Documentation

epsilon()

Real epsilon

(

)

global zero epsilon

Definition at line 56 of file spxdefines.cpp.

References Tolerances::s_epsilon.

epsilonFactorization()

Real epsilonFactorization

(

)

zero espilon used in factorization

Definition at line 68 of file spxdefines.cpp.

References Tolerances::s_epsilon_factorization.

epsilonPivot()

Real epsilonPivot

(

)

zero espilon used in pivot

Definition at line 89 of file spxdefines.cpp.

References Tolerances::s_epsilon_pivot.

epsilonUpdate()

Real epsilonUpdate

(

)

zero espilon used in factorization update

Definition at line 79 of file spxdefines.cpp.

References Tolerances::s_epsilon_update.

feastol()

Real feastol

(

)

global feasibility tolerance

Definition at line 99 of file spxdefines.cpp.

References Tolerances::s_feastol.

floatingPointFeastol()

Real floatingPointFeastol

(

)

floating point feasibility tolerance used within the solver

Definition at line 119 of file spxdefines.cpp.

References Tolerances::s_floating_point_feastol.

floatingPointOpttol()

Real floatingPointOpttol

(

)

floating point optimality tolerance used within the solver

Definition at line 129 of file spxdefines.cpp.

References Tolerances::s_floating_point_opttol.

opttol()

Real opttol

(

)

global optimality tolerance

Definition at line 109 of file spxdefines.cpp.

References Tolerances::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 380 of file spxdefines.h.

References Tolerances::s_epsilon_multiplier.

setEpsilon()

void setEpsilon

(

Real

eps

)

set global zero epsilon

Definition at line 61 of file spxdefines.cpp.

References Tolerances::s_epsilon, Tolerances::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 Tolerances::s_epsilon_factorization.

setEpsilonPivot()

void setEpsilonPivot

(

Real

eps

)

set zero espilon used in pivot

Definition at line 94 of file spxdefines.cpp.

References Tolerances::s_epsilon_pivot.

setEpsilonUpdate()

void setEpsilonUpdate

(

Real

eps

)

set zero espilon used in factorization update

Definition at line 84 of file spxdefines.cpp.

References Tolerances::s_epsilon_update.

setFeastol()

void setFeastol

(

Real

ftol

)

set global feasibility tolerance

Definition at line 104 of file spxdefines.cpp.

References Tolerances::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 Tolerances::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 Tolerances::s_floating_point_opttol.

setOpttol()

void setOpttol

(

Real

otol

)

set global optimality tolerance

Definition at line 114 of file spxdefines.cpp.

References Tolerances::s_opttol.

Member Data Documentation

s_epsilon

Real s_epsilon

private

default allowed additive zero: 1.0 + EPS_ZERO == 1.0

Definition at line 312 of file spxdefines.h.

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

s_epsilon_factorization

Real s_epsilon_factorization

private

epsilon for factorization

Definition at line 314 of file spxdefines.h.

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

s_epsilon_multiplier

Real s_epsilon_multiplier

private

multiplier for fixed numbers that should change if s_epsilon changes

Definition at line 328 of file spxdefines.h.

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

s_epsilon_pivot

Real s_epsilon_pivot

private

epsilon for pivot zero tolerance in factorization

Definition at line 318 of file spxdefines.h.

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

s_epsilon_update

Real s_epsilon_update

private

epsilon for factorization update

Definition at line 316 of file spxdefines.h.

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

s_feastol

Real s_feastol

private

feasibility tolerance

Definition at line 320 of file spxdefines.h.

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

s_floating_point_feastol

Real s_floating_point_feastol

private

floating point feasibility tolerance

Definition at line 324 of file spxdefines.h.

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

s_floating_point_opttol

Real s_floating_point_opttol

private

floating point optimality tolerance

Definition at line 326 of file spxdefines.h.

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

s_opttol

Real s_opttol

private

optimality tolerance

Definition at line 322 of file spxdefines.h.

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