by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Service, distributor in Moffett Field, Calif, [Springfield, Va .
Written in English
|Statement||Ronald Schmickley, David H. Bailey.|
|Series||NASA contractor report -- 177461., NASA contractor report -- NASA CR-177461.|
|Contributions||Bailey, David H., Ames Research Center.|
|The Physical Object|
The CRAY-2 is considered to be one of the most powerful supercomputers. Its state-of-the-art technology features a faster clock and more memory than any other supercomputer available today. In this report the single processor performance of the CRAY-2 is compared with the older, more mature CRAY by: 3. In this report the single processor performance of the CRAY-2 is compared with the older, more mature CRAY X-MP. Benchmark results are included for both the slow and the fast memory DRAM MOS CRAY available for the Cray X-MP computers, which have much more limited main memory than the Cray-2, has for years utilized a separate array for the left-hand-side at each iteration to avoid the need Author: David H. Bailey. The Cray-2 is capable of performing matrix multiplication at very high rates. Using library routines provided by Cray Research, Inc., performance rates of to MFLOPS can be obtained on a.
An overview of the Cray-2 system, including its capability and performance, is provided. The Cray-2 consists of 4 background processors and a foreground processor for I/O. An extremely large multibank memory is a key feature, as is the cooling technology. The . Performance Comparison of the Cray-2 and Cray X-MP on a Class of Seismic Data Processing Algorithms. Cray research report. Kodaka, T., Kawabe, F. S., and Nagashima S. (). M F L O P Supercomputer HITAC S with 1 GByte Semiconductor Expansion Memory. In , Seymour Cray topped the speed and performance of the X-MP with the release of the Cray-2, which took over as the world’s fastest supercomputer. It boasted MHz of processing speed, way less than the MHz of the iPhone 4—but getting there wasn’t easy. Dongara, J.J. and A. Hinds. Comparison of the Cray X-MP4, Fujitsu VP, and Hitachi S/ In: K. Hwang and D. DeGroot, Eds., Parallel Processing for Supercomputers and Artificial Intelligence (McGraw-Hill, New York) pp – Google Scholar.
A performance comparison of the Cray-2 and the Cray X-MP. benchmark codes were run on Cray-2 and Cray X-MP supercomputers. from 40 percent up to percent of X-MP performance . The Cray X-MP was a supercomputer designed, built and sold by Cray was announced in as the "cleaned up" successor to the Cray-1, and was the world's fastest computer from to with a quad-processor system performance of . Book: Cloud Computing for Science and Engineering A performance comparison of the Cray-2 and the Cray X-MP. operation rates varied under a variety of system load configurations from FIRST CUSTOMER: Los Alamos National Laboratory (pictured) FUN FACT: The Cray-1 was the world’s fastest supercomputer from to It measured 8½ feet wide by 6½ feet high and contained 60 miles of wires. TECH STORY: Cray Research achieved the Cray-1’s record-breaking megaflops performance through its small size and cylindrical shape, 1 million-word semiconductor memory, 64 .