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» Operating System Family
Operating system Family Count Share % Rmax Sum (GF) Rpeak Sum (GF) Processor Sum
Linux 371 74.20 % 1194684 1977196 333177
Windows 1 0.20 % 2090 4752 660
Unix 100 20.00 % 469944 689596 137968
BSD Based 4 0.80 % 48955 54456 6072
Mixed 19 3.80 % 551787 702971 246400
Mac OS 5 1.00 % 37228 60995 7256
Totals 500 100% 2304687.73 3489965.54 731533
http://www.top500.org/stats/26/osfam/
a Linux zaraba to podstatne viac ako Windows
Cray Signs $200 Million Contract to Deliver World's Largest Supercomputer to Oak Ridge
SEATTLE, WA, June 15, 2006 - Cray Inc. (Nasdaq NM: CRAYD) announced today that they have signed a multi-year contract with the U.S. Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) to provide the world's first petaflops-speed (1,000 trillion floating-point operations per second) supercomputer.
The total contract, including systems and services, is valued at about $200 million and calls for progressive upgrades to ORNL's existing Cray XT3™ supercomputer. This system will be upgraded to dual-core processors later this year, accelerating peak speed from 25 teraflops (25 trillion calculations per second) to 50 teraflops. Further upgrades will increase the performance to 100 teraflops, planned in late 2006, and to 250 teraflops, planned in late 2007.
ORNL is then expected to install a next-generation Cray supercomputer in late 2008. This system, currently code-named 'Baker,' is designed to deliver peak performance of one petaflops, making it roughly three times faster than any existing computer in the world. All systems provided for in this contract will utilize current and future versions of the AMDTM Opteron processor.
"ORNL has had a long and rewarding partnership with Cray that has enabled us to accomplish breakthrough science," said ORNL Director Jeff Wadsworth. "The Department of Energy's Leadership Computing Facility at ORNL will help ensure that the United States remains a world leader by helping solve 'grand challenge' problems in nanoscience, biology and energy technologies."
http://investors.cray.com/phoenix.zhtml?c=98390&p=irol-newsArticle&ID=873357&highlight=
Scalable Operating System
The Cray XT3 operating system UNICOS/lc is designed to run large complex applications and scale efficiently to 30,000 processors. As in previous generation MPP systems from Cray, UNICOS/lc consists of two primary components—a microkernel for compute PEs and a full-featured operating system for the service PEs.
Service PEs run a full Linux™ distribution. Service PEs can be configured to provide login, I/O, system, or network services.
http://www.cray.com/products/CrayXT3
taka masina na Windows je nemozne...