Title :
I/O performance on a massively parallel Cray XT3/XT4
Author :
Fahey, Mark ; Larkin, Jeff ; Adams, Joylika
Author_Institution :
Oak Ridge Nat. Lab., Oak Ridge, TN
Abstract :
We present an overview of the current status of input/output (I/O) on the Cray XT line of supercomputers and provide guidance to application developers and users for achieving efficient I/O. Many I/O benchmark results are presented, based on projected I/O requirements for some widely used scientific applications in the Department of Energy. Finally, we interpret and summarize these benchmark results to provide forward-looking guidance for I/O in large-scale application runs on a Cray XT3/XT4.
Keywords :
parallel machines; I/O performance; parallel Cray XT3/XT4; supercomputers; Astrophysics; Combustion; Costs; Hardware; Laboratories; Large-scale systems; Microprocessors; Multicore processing; Supercomputers; Writing;
Conference_Titel :
Parallel and Distributed Processing, 2008. IPDPS 2008. IEEE International Symposium on
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-1693-6
Electronic_ISBN :
1530-2075
DOI :
10.1109/IPDPS.2008.4536270
