ASCI Red

ASCI Red, ASCI Option Red or even Janus, was a 1997 installed at Sandia National Laboratories supercomputer. Between June 1997 and June 2000, he led the TOP500 list of fastest computer systems. ASCI Red was decommissioned in September 2005.

The system was developed in cooperation by Intel and Sandia National Laboratories as part of the Advanced Simulation and Computing Program to simulate explosions of nuclear weapons.

Construction

The ASCI Red was a system based on Multiple - Instruction Multiple Data architecture of the system originally enough, 9152 clocked to 200 MHz Pentium Pro processors. These were later II OverDrive processors that were clocked at 333 MHz, depending replaced by 9298 Pentium.

Further, the system had 1212 gigabytes distributed main memory and 12.5 terabytes of hard disk space.

Operating Systems

The operating systems were developed by Intel, based on OSF UNIX Teraflops OS and developed by Sandia, based on the SUNMOS kernel Cougar system is used, which ran each on their own partitions. Here Teraflops OS served mainly for configuration, administration and development. The actual calculations were performed under the operating system more efficient Cougar, which also governed the memory distribution.

Performance

The ASCI Red was the first supercomputer achieved a performance of over a TFLOPS in MP LINPACK benchmark. After his upgrade to Pentium II OverDrive processors it reached over two TFLOPS.

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