Supercomputers

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Pigeon
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Supercomputers

Post by Pigeon » Sun Nov 20, 2011 4:38 pm

The K computer – named for the Japanese word "kei", which stands for 10 quadrillion – is a supercomputer being produced by Fujitsu at the RIKEN Advanced Institute for Computational Science campus in Kobe, Japan.

In June 2011, the TOP500 ranked K the world's fastest supercomputer, with a rating of over 8 petaflops, and in November 2011, K became the first computer to top 10 petaflops. It is expected to become fully operational in November 2012.

Tianhe-1A, located at the National Supercomputing Center in Tianjin, China, it was the fastest computer in the world from October 2010 to June 2011 and is one of the few Petascale supercomputers in the world.

Jaguar, Built by Cray at Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. The massively parallel Jaguar has a peak performance of just over 1,750 teraflops (1.75 petaflops).

IBM Roadrunner was crowned No. 1 in June 2008 after becoming the first supercomputer to break one petaflop/s. IBM’s Roadrunner managed 1.042 petaflops. The supercomputer is located at the Los Alamos National Laboratory.
Blue Gene/L

Earth Simulator, Built by NEC for the Japan Aerospace Exploration Agency, the Japan Atomic Energy Research Institute and the Japan Marina Science and Technology Center, the Earth Simulator (ES) was the fastest supercomputer in the world from 2002 to 2004.

ASCI White, an IBM system, replaced ASCI-Red as the fastest supercomputer in 2000. ASCI White held the spot for world’s fastest supercomputer for two years from 2000-2002. It was capable of computing 12.3 trillion operations per second.

ASCI Red , The fastest computer from June 1997 to June 2000, ASCI Red was collaboration between Intel Corp and Sandia Labs. It was the first computer to break the teraflops barrier, which after the processor upgrade passed 2 teraflops.

Numerical Wind Tunnel, the machine was built by Fujitsu and Japan’s National Aerospace Laboratory. The machine was used to simulate wind turbulence on airplanes and in spacecraft as well as to forecast weather.

Link to top500.org

Numerical Wind Tunnel, cool name.

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Dr Exile
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Re: Supercomputers

Post by Dr Exile » Mon Nov 21, 2011 2:13 am

What the !#$@ is a flop?
Credo quia absurdum.

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Pigeon
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Re: Supercomputers

Post by Pigeon » Mon Nov 21, 2011 3:21 am

Processing a floating point operation.

Gflop/s is a rate of execution, billions of floating point operations per second. Whenever this term is used it will refer to 64 bit floating point operations and the operations will be either addition or multiplication. Also a Tflop/s is used for the same purpose but refers to trillions of floating point operations per second


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Dr Exile
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Re: Supercomputers

Post by Dr Exile » Mon Nov 21, 2011 5:42 am

I did not know supercomputers used 64 bit, I thought that was a PC thing. I guess supercomputers don't use FORTRAN anymore.
Credo quia absurdum.

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Pigeon
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Re: Supercomputers

Post by Pigeon » Mon Nov 21, 2011 3:03 pm

They are now using banks of PC cpus to build them.

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