NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Multitasking domain decomposition fast Poisson solvers on the Cray Y-MPThe results of multitasking implementation of a domain decomposition fast Poisson solver on eight processors of the Cray Y-MP are presented. The object of this research is to study the performance of domain decomposition methods on a Cray supercomputer and to analyze the performance of different multitasking techniques using highly parallel algorithms. Two implementations of multitasking are considered: macrotasking (parallelism at the subroutine level) and microtasking (parallelism at the do-loop level). A conventional FFT-based fast Poisson solver is also multitasked. The results of different implementations are compared and analyzed. A speedup of over 7.4 on the Cray Y-MP running in a dedicated environment is achieved for all cases.
Document ID
19910048427
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chan, Tony F.
(California, University Los Angeles, United States)
Fatoohi, Rod A.
(NASA Ames Research Center; Sterling Software Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Computer Programming And Software
Accession Number
91A33050
Funding Number(s)
CONTRACT_GRANT: NCC2-387
CONTRACT_GRANT: NAS2-11555
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available