+ NASA Home + Ames Home + Sitemap + Staff Directory +Home HIGH END SYSTEMS + Pleiades + Columbia + Schirra NAS Technical Reports are written by scientists and engineers both contractors and civil service personnel in the NAS Division at NASA Ames Research Center. In some cases, these reports are co-authored in collaboration with researchers from other organizations. Links to this year's NAS Technical Reports in PDF format are listed below. TECHNICAL REPORTS Scientific Application-Based Performance Comparison of SGI Altix 4700, IBM Power5+, and SGI ICE 8200 Supercomputers This paper evaluates performance of a dual-core SGI Altix 4700, a quad-core SGI Altix ICE 8200, and a dual-core IBM POWER5+ system. To measure performance, NAS computer scientists used micro-benchmarks from the High Performance Computing Challenge, NAS Parallel Benchmarks, and four real-world applications—three from computational fluid dynamics and one from climate modeling. Authored by: Subhash Saini, Dale Talcott, Dennis Jespersen, Jahed Djomehri, Haoqiang Jin, and Rupak Biswas + NAS-09-001 (PDF-4.5MB) ARCHIVE Visit our Technical Reports Archive. + 2008+ 2007 + 2006+ 2005 + 2004+ 2003 + 2002+ 2001 + 2000+ 1999 + 1998+ 1997 + 1996+ 1995 + 1994+ 1993 + 1992+ 1991 + 1990+ 1989   To view these files, you will need the free Adobe Acrobat Reader. Visit NASA Technical Reports Server. + View more reports + Feedback + Site Help + NASA Privacy Statement, Disclaimer, and Accessibility Certification Editor: Jill Dunbar Webmaster: John Hardman NASA Official: Rupak Biswas + Contact NAS Last Updated: May 15, 2009