Open|SpeedShop Now Available to Linux Developers

At SC|05, Demonstrations and Technical Sessions Shine Spotlight on Popular Analysis Tool for HPC Open-Source Applications

SC|05 - SEATTLE (Nov. 15, 2005)—Culminating a year of joint development, the U.S. Department of Energy's (DOE) National Nuclear Security Administration (NNSA) and Silicon Graphics (OTC: SGID) today announced that an open-source version of the SGI® SpeedShop™ performance analysis tool is now available to developers.

Open|SpeedShop™, an open-source, multi-platform Linux® tool, helps developers and end users analyze the performance of applications running on single-node to large-scale IA32, IA64, EM64T and AMD64 platforms. The new open-source tool is the result of a cooperative government/industry effort to make more sophisticated open-source performance tools available to government laboratories, universities and other researchers.

At the SC|05 Conference Nov. 12-18 in Seattle, Linux application developers can attend a Birds-of-a-Feather session and ongoing demonstrations of Open|SpeedShop.

• Birds-of-a-Feather session: 12:15 to 1:15 p.m. Wednesday, Nov. 16, in Room 615-616 of the Washington State Convention and Trade Center. Jim Galarowicz from SGI and Martin Schulz from Lawrence Livermore National Laboratory will discuss the current status of Open|SpeedShop and the opportunities it presents to high-performance computing (HPC) application developers and users.
• Live demonstrations of Open|SpeedShop: Ongoing in the SGI Booth (No. 602) and the NNSA Advanced Simulation and Computing (ASC) Tri-Labs Booth (No. 402).

Developed by SGI in collaboration with Lawrence Livermore National Laboratory, Los Alamos National Laboratory, and Sandia National Laboratories, Open|SpeedShop utilizes dynamic instrumentation technology developed at the University of Wisconsin and University of Maryland.

The tool's base functionality includes program counter sampling, exclusive and inclusive user time, CPU hardware performance counter, MPI event tracing, I/O call tracing, and floating-point exception experiments. Designed to be modular and extensible, Open|SpeedShop supports several levels of plug-ins that allow users to add their own performance experiments. The tool's infrastructure and base components are being released open source under GPL and LGPL.

Key features of the powerful open-source tool include:

• Three modes of operation: batch, interactive command line interface, and graphical user interface
• Multi-platform single system image, traditional cluster, and SGI super cluster support
• Support for large numbers of processes, threads, and ranks

For more information or to download the developer beta version of Open|SpeedShop, visit: http://oss.sgi.com/projects/openspeedshop/

SILICON GRAPHICS | The Source of Innovation and Discovery™
SGI, also known as Silicon Graphics, Inc. (OTC: SGID), is a leader in high-performance computing, visualization and storage. SGI's vision is to provide technology that enables the most significant scientific and creative breakthroughs of the 21st century. Whether it's sharing images to aid in brain surgery, finding oil more efficiently, studying global climate, providing technologies for homeland security and defense or enabling the transition from analog to digital broadcasting, SGI is dedicated to addressing the next class of challenges for scientific, engineering and creative users. With offices worldwide, the company is headquartered in Mountain View, Calif., and can be found on the Web at www.sgi.com.

Silicon Graphics, SGI, the SGI cube and the SGI logo are registered trademarks, and SpeedShop, Open|SpeedShop, and The Source of Innovation, and Discovery are trademarks of Silicon Graphics, Inc., in the United States and/or other countries worldwide. Linux is a registered trademark of Linus Torvalds in several countries. All other trademarks mentioned herein are the property of their respective owners.