IBM e1350

Clock Speed: 
Dates Used: 
Monday, January 31, 2005
Microprocessor Peak Teraflops: 
Memory (terabytes): 
Number of Processors: 
Electrical Power Consumption: 
28.00 kW

The Scientific Computing Division, part of NCAR's Computational Science and Information Systems Laboratory, took delivery on a a new IBM e1350 supercomputer named "pegasus" on January 31, 2005. NCAR scientists are using the new machine to run the Antarctic Mesoscale Prediction System (AMPS), a computer model based at NCAR that will issue operational forecasts for researchers stationed in Antarctica.

The IBM e1350 is a relatively inexpensive yet powerful supercomputer designed to meet near-term modeling needs, with the potential of being expanded to accommodate possible future increases in AMPS model resolution and complexity.

With 132 processors, a clock speed of 2200 MHz, and a peak computational capability of nearly 580 gigaflops, pegasus can run a 20-kilometer (12-mile) version of AMPS about four times faster than the old system ran a coarser 30-km (19-mile) version. The machine also has more than 270 gigabytes of memory and 3 terabytes of disk capacity. It is connected to NCAR's massive data storage system and local area network via Ethernet links.

The National Science Foundation, NCAR's primary sponsor, funded the computer through a special award from its Division of Atmospheric Sciences, with research support from the NSF Office of Polar Programs.