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Title: Efficiency Evaluation of Cray XT Parallel IO Stack

Abstract

PetaScale computing platforms need to be coupled with efficient IO subsystems that can deliver commensurate IO throughput to scientific applications. In order to gain insights into the deliverable IO efficiency on the Cray XT platform at ORNL, this paper presents an in-depth efficiency evaluation of its parallel IO software stack. Our evaluation covers the performance of a variety of parallel IO interfaces, including POSIX IO, MPI-IO, and HDF5. Moreover, we describe several tuning parameters for these interfaces and present their effectiveness in enhancing the IO efficiency.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Computational Sciences
Sponsoring Org.:
USDOE
OSTI Identifier:
1261242
DOE Contract Number:
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: Cray User Group Conference, Seattle, WA, USA, 20070507, 20070510
Country of Publication:
United States
Language:
English

Citation Formats

Yu, Weikuan, Oral, H Sarp, Vetter, Jeffrey S, and Barrett, Richard F. Efficiency Evaluation of Cray XT Parallel IO Stack. United States: N. p., 2007. Web.
Yu, Weikuan, Oral, H Sarp, Vetter, Jeffrey S, & Barrett, Richard F. Efficiency Evaluation of Cray XT Parallel IO Stack. United States.
Yu, Weikuan, Oral, H Sarp, Vetter, Jeffrey S, and Barrett, Richard F. Mon . "Efficiency Evaluation of Cray XT Parallel IO Stack". United States. doi:.
@article{osti_1261242,
title = {Efficiency Evaluation of Cray XT Parallel IO Stack},
author = {Yu, Weikuan and Oral, H Sarp and Vetter, Jeffrey S and Barrett, Richard F},
abstractNote = {PetaScale computing platforms need to be coupled with efficient IO subsystems that can deliver commensurate IO throughput to scientific applications. In order to gain insights into the deliverable IO efficiency on the Cray XT platform at ORNL, this paper presents an in-depth efficiency evaluation of its parallel IO software stack. Our evaluation covers the performance of a variety of parallel IO interfaces, including POSIX IO, MPI-IO, and HDF5. Moreover, we describe several tuning parameters for these interfaces and present their effectiveness in enhancing the IO efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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