Paper Info
Title
Application-driven analysis of two generations of capability computing: the transition to multicore processors
Abstract
Multicore processors form the basis of most traditional high performance parallel processing architectures. Early experiences with these computers showed significant performance problems, both with regard to computation and inter-process communication. The transition from Purple, an IBM POWER5-based machine, to Cielo, a Cray XE6, as the main capability computing platform for the United States Department of Energy's Advanced Simulation and Computing campaign provides an opportunity to reexamine these issues after experiences with a few generations of multicore-based machines. Experiences with Purple identified some important characteristics that led to strong performance of complex scientific application programs at very large scales. Herein, we compare the performance of some Advanced Simulation and Computing mission critical applications at capability scale across this transition to multicore processors. Copyright © 2012 John Wiley & Sons, Ltd.
Year
DOI
Venue
2012
10.1002/cpe.2830
Concurrency and Computation: Practice and Experience
Keywords
DocType
Volume
Advanced Simulation,strong performance,traditional high performance parallel,IBM POWER5-based machine,capability scale,Application-driven analysis,Cray XE6,main capability computing platform,significant performance problem,Computing mission,Computing campaign
Journal
24
Issue
ISSN
Citations 
18
1532-0626
4
PageRank 
References 
Authors
0.60
17
7
Name
Order
Citations
PageRank
Mahesh Rajan171.09
Courtenay T. Vaughan2809.84
Doug W. Doerfler340.60
Richard F. Barrett428622.94
Paul T. Lin5696.84
Kevin T. Pedretti619621.20
K. Scott Hemmert757750.62