Sandia National Laboratories

Ticket #3 (closed defect: fixed)

Opened 7 years ago

Last modified 7 years ago

Citizen GSS cycles indefinitely if all step directions are infeasible

Reported by: tplante Owned by: somebody
Priority: major Milestone:
Component: component1 Version:
Keywords: 2.0.1 Cc:

Description (last modified by tplante) (diff)

Reported by customer Francisco Sobral, Mar 30, 2011. His example problem contains 11 linear homogeneous equality constraints, with feasible initial point (the origin) provided. GSS fails to find any feasible search direction and returns no points to the Mediator, and then receives no points back, cycling indefinitely.

To end the cycling, Francisco suggested a check in GssIterator::pointExchange(), which I agreed with.

Resolved in SVN r187, 4/6/2011.

Attachments

problematic-case.txt Download (3.9 KB) - added by tplante 7 years ago.
Problem definition that reproduces the error. Modify example 2 to accept 15 inputs and use it to return an objective.

Change History

Changed 7 years ago by tplante

Problem definition that reproduces the error. Modify example 2 to accept 15 inputs and use it to return an objective.

comment:1 Changed 7 years ago by tplante

  • Status changed from new to closed
  • Resolution set to fixed
  • Description modified (diff)
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