0000420: FIXED: BLEIC optimizer can fail when started from infeasible point - Mantis

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ID

Category

Severity

Reproducibility

Date Submitted

Last Update

0000420

[ALGLIB] Optimization

major

have not tried

2012-01-05 23:45

2012-01-20 10:39

Reporter

SergeyB

View Status

public

Assigned To

SergeyB

Priority

normal

Resolution

fixed

Platform

Status

resolved

OS

Projection

none

OS Version

ETA

none

Fixed in Version

3.5.0

Product Version

Target Version

3.5.0

Product Build

Summary

0000420: FIXED: BLEIC optimizer can fail when started from infeasible point

Description

Feasibility solver used by BLEIC had flaw in the algorithm which prevented it from finding feasible points in some circumstances. It was replaced by better algorithm with guaranteed convergence (unless problem is so ill-conditioned that it is impossible to find feasible point because of rounding errors).

Steps To Reproduce

Additional Information

Programming language

Unspecified

Relationships

There are no notes attached to this issue.

Issue History
Date Modified	Username	Field	Change
2012-01-05 23:45	SergeyB	New Issue
2012-01-05 23:45	SergeyB	Status	new => assigned
2012-01-05 23:45	SergeyB	Assigned To	=> SergeyB
2012-01-05 23:45	SergeyB	Programming language	=> Unspecified
2012-01-17 11:36	SergeyB	Target Version	=> 3.5.0
2012-01-20 10:28	SergeyB	Note Added: 0000055
2012-01-20 10:29	SergeyB	Note Deleted: 0000055
2012-01-20 10:38	SergeyB	Summary	BLEIC optimizer can fail when started from infeasible point => FIXED: BLEIC optimizer can fail when started from infeasible point
2012-01-20 10:38	SergeyB	Description Updated
2012-01-20 10:39	SergeyB	Status	assigned => resolved
2012-01-20 10:39	SergeyB	Fixed in Version	=> 3.5.0
2012-01-20 10:39	SergeyB	Resolution	open => fixed

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