Look for Bottlenecks with Open|SpeedShop

Conclusions and Additional Information Sources

In this article, I outlined potential uses of Open|SpeedShop to find performance issues in sequential and parallel applications running on Linux clusters, as well as the Cray and Blue Gene platforms. The scenarios shown in this article can be supplemented by viewing the recent Open|SpeedShop tutorials and presentations found on the Open|SpeedShop website. In particular, the SciDAC 2011 and SuperComputing 2011 tutorials have extensive example usage scenarios that could be helpful. Developers using a hybrid (MPI and OpenMP) programming model might find this Open|SpeedShop hybrid performance analysis tutorial useful.

There are a number of ways to receive help with building and using Open|SpeedShop. One option is the Open|SpeedShop Forum, where users can ask questions and view previous questions and answers. Another option is to send email to the alias oss-questions@openspeedshop.org. You also may email the author directly.

The latest release is version 2.0.1 and is available for download on SourceForge at this location. Documentation is available in the form of man pages when Open|SpeedShop is installed, a downloadable version of the Open|SpeedShop Quick Start Guide, and a number of user guide documents that can be found on the Open|SpeedShop Documentation web page.

The Author

Jim Galarowicz is a Senior Computer Scientist at the Krell Institute and a full-time developer of Open|SpeedShop.

Acknowledgments

I thank the Open|SpeedShop team: Donald Maghrak, full-time developer; William Hachfeld, David Whitney, and Dane Gardner, part-time developers; and John Ziebarth, project manager, all of the Krell Institute, as well as project partners Martin Schulz (Lawrence Livermore), Dave Montoya (Los Alamos National Laboratory), and Mahesh Rajan (Sandia). I also thank Bill Cannon and Tom O’Donnell of the Krell Institute for reviewing this article before publication.