NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A Performance Evaluation of the Cray X1 for Scientific ApplicationsThe last decade has witnessed a rapid proliferation of superscalar cache-based microprocessors to build high-end capability and cost effectiveness. However, the recent development of massively parallel vector systems is having a significant effect on the supercomputing landscape. In this paper, we compare the performance of the recently released Cray X1 vector system with that of the cacheless NEC SX-6 vector machine, and the superscalar cache-based IBM Power3 and Power4 architectures for scientific applications. Overall results demonstrate that the X1 is quite promising, but performance improvements are expected as the hardware, systems software, and numerical libraries mature. Code reengineering to effectively utilize the complex architecture may also lead to significant efficiency enhancements.
Document ID
20040068137
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Oliker, Leonid
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Biswas, Rupak
(NASA Ames Research Center Moffett Field, CA, United States)
Borrill, Julian
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Canning, Andrew
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Carter, Jonathan
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Djomehri, M. Jahed
(NASA Ames Research Center Moffett Field, CA, United States)
Shan, Hongzhang
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Skinner, David
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Date Acquired
August 21, 2013
Publication Date
December 13, 2004
Subject Category
Computer Operations And Hardware
Funding Number(s)
CONTRACT_GRANT: DE-AC03-76SF-00098
CONTRACT_GRANT: DTTS59-99-D-00437
WBS: WBS 302-15-41
CONTRACT_GRANT: NASA Order A-61812-D
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

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