Speedup predictions for large scientific parallel programs on Cray X-MP-like architectures. Revision

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5295123

Williams, E; Bobrowicz, F

How much speedup can we expect for large scientific parallel programs running on supercomputers. For insight into this problem we extend the parallel processing environment currently existing on the Cray X-MP (a shared memory multiprocessor with at most four processors) to a simulated N-processor environment, where N less than or equal to 1. Several large scientific parallel programs from Los Alamos National Laboratory were run in this simulated environment, and speedups were predicted. A speedup of 14.4 on 16 processors was measured for one of the three most used codes at the Laboratory.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5295123
• Report Number(s): LA-UR-85-1391-Rev.; CONF-850842-2-Rev.; ON: DE85015691
• Resource Relation: Conference: International conference on parallel processing, St. Charles, IL, USA, 20 Aug 1985; Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CRAY COMPUTERS
PARALLEL PROCESSING
EFFICIENCY
ARRAY PROCESSORS
COMPUTERS
PROGRAMMING
990200* - Mathematics & Computers