Free and open-source software

This page provides software created as part of my research.

Selection Tool for Optimization Parameters (STOP)

STOP is a tool to help find good parameter settings for a program on a class of instances. It is based on research done by Brady Hunsaker, Mustafa Baz, Paul Brooks, and Abhijit Gosavi. The coding was done by Brady Hunsaker and Mustafa Baz.

A paper on this research has been submitted for publication. A pre-print was submitted to Optimization Online on October 29, 2007.

The copyright on the code is held by the University of Pittsburgh. It is licensed under the user's choice of the GNU GPL version 2 or later or the Common Public License (CPL) version 1.0.

The code has been submitted to COIN-OR. Hopefully it will appear there within a few weeks. In the meantime, a raw tarball is available here: STOP.tar.gz.

Branch-and-bound Analysis Kit (BAK)

BAK is a tool to help evaluate the progress and performance of branch-and-bound algorithms. It is based on research done by Osman Ozaltin, Brady Hunsaker, and Ted Ralphs. The coding was done by Osman Ozaltin and Brady Hunsaker.

BAK can generate images for visualizing various aspects of branch-and-bound performance and can also generate predictions about when the branch-and-bound algorithm will terminate.

The branch-and-bound solver must output a data file with information in the form that BAK expects. Then BAK will operate on this output file to generate the images.

A paper on this research has been submitted for publication. A pre-print is available on Optimization Online.

The copyright on the code is held by the University of Pittsburgh. It is licensed under the user's choice of the GNU GPL version 2 or later or the Common Public License (CPL) version 1.0.

The code has been submitted to COIN-OR. Hopefully it will appear there within a few weeks. In the meantime, a raw tarball is available here: BAK.tar.gz.

Feedback

Please direct all feedback, including questions, comments, and bug reports, to Brady Hunsaker: abhun-nospam-saker at speakeasy.net.