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Showing posts from July, 2011

Python Optimization Packages

I have been maintaining a list of Python optimization packages for a while now on the Coopr Trac pages:  see https://software.sandia.gov/trac/coopr/wiki/Documentation/RelatedProjects .Today, I noticed that if you google for "python optimization packages", this page does not show up right away.  Perhaps Trac pages are index differently?  I'm not sure. Anyway, I thought I'd add this reference here to help others find this list that I'm maintaining...

Coopr 3.0.4362 Release

We are pleased to announce the release of Coopr 3.0 (3.0.4362). Coopr is a collection of Python software packages that supports a diverse set of optimization capabilities for formulating and analyzing optimization models. The following are highlights of this release: - Solvers * More sophisticated logic for solver factory to find ASL and OS solvers * Various solver interface improvements * New Solver results object for efficient representation of variable values * New support for asynchronous progressive hedging - Modeling * Changes in rule semantics to limit rule return values * Changes in the expected order of rule arguments * Constant sums or products can now be used as constraint bounds * Added full support for the !ConstraintList modeling component. - Usability enhancements * More explicit output from runph and runef commands * Added support in runef to write the extensive form in NL format * Add controls for garbage collection in PH - Other * Efficiency impr