NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Multiprocessing on supercomputers for computational aerodynamicsLittle use is made of multiple processors available on current supercomputers (computers with a theoretical peak performance capability equal to 100 MFLOPS or more) to improve turnaround time in computational aerodynamics. The productivity of a computer user is directly related to this turnaround time. In a time-sharing environment, such improvement in this speed is achieved when multiple processors are used efficiently to execute an algorithm. The concept of multiple instructions and multiple data (MIMD) is applied through multitasking via a strategy that requires relatively minor modifications to an existing code for a single processor. This approach maps the available memory to multiple processors, exploiting the C-Fortran-Unix interface. The existing code is mapped without the need for developing a new algorithm. The procedure for building a code utilizing this approach is automated with the Unix stream editor.
Document ID
19910058000
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Yarrow, Maurice
(NASA Ames Research Center; Sterling Federal Systems, Inc. Moffett Field, CA, United States)
Mehta, Unmeel B.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: International Journal of Supercomputer Applications
Volume: 5
ISSN: 0890-2720
Subject Category
Computer Systems
Accession Number
91A42623
Distribution Limits
Public
Copyright
Other

Available Downloads

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