TY - GEN
T1 - Characterizing the I/O behavior of scientific applications on the cray XT
AU - Roth, Philip C.
PY - 2008
Y1 - 2008
N2 - Scientific applications use input/output (I/O) for obtaining initial conditions and execution parameters, as a persistent way of saving program output, and for safeguarding against system unreliability. Although system sizes are expected to continue increasing, I/O performance is not expected to keep pace with system computation and communication performance. Understanding application I/O demands and system I/O capabilities is the first step toward bridging this gap between them. In this paper, we present our approach for characterizing the I/O demands of applications on the Cray XT. We also present preliminary case studies showing the use of our I/O characterization infrastructure with climate studies and combustion simulation programs.
AB - Scientific applications use input/output (I/O) for obtaining initial conditions and execution parameters, as a persistent way of saving program output, and for safeguarding against system unreliability. Although system sizes are expected to continue increasing, I/O performance is not expected to keep pace with system computation and communication performance. Understanding application I/O demands and system I/O capabilities is the first step toward bridging this gap between them. In this paper, we present our approach for characterizing the I/O demands of applications on the Cray XT. We also present preliminary case studies showing the use of our I/O characterization infrastructure with climate studies and combustion simulation programs.
KW - Cray XT
KW - Instrumentation
KW - Performance data collection
UR - http://www.scopus.com/inward/record.url?scp=57749121448&partnerID=8YFLogxK
U2 - 10.1145/1374596.1374609
DO - 10.1145/1374596.1374609
M3 - Conference contribution
AN - SCOPUS:57749121448
SN - 9781595938992
T3 - Proceedings of the 2nd International Petascale Data Storage Workshop, PDSW '07, held in Conjunction with Supercomputing '07
SP - 50
EP - 55
BT - Proceedings of the 2nd International Petascale Data Storage Workshop, PDSW '07, held in Conjunction with Supercomputing '07
T2 - 2nd International Petascale Data Storage Workshop, PDSW '07, held in Conjunction with Supercomputing '07
Y2 - 11 November 2007 through 11 November 2007
ER -