An experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon using a production application

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This paper presents the results of an experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon. For the evaluation, we used a full, three-dimensional application code that is in production use for studying the nonlinear evolution of Jeans instability in self-gravitating gaseous clouds. The application performs I/O by using library routines that we developed and optimized separately for parallel I/O on the SP and Paragon. The I/O routines perform two-phase I/O and use the PIOFS file system on the SP and PFS on the Paragon. We studied the I/O performance for two different sizes of ... continued below

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15 p.

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Thakur, R.; Gropp, W. & Lusk, E. September 1, 1996.

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This paper presents the results of an experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon. For the evaluation, we used a full, three-dimensional application code that is in production use for studying the nonlinear evolution of Jeans instability in self-gravitating gaseous clouds. The application performs I/O by using library routines that we developed and optimized separately for parallel I/O on the SP and Paragon. The I/O routines perform two-phase I/O and use the PIOFS file system on the SP and PFS on the Paragon. We studied the I/O performance for two different sizes of the application. We found that for the small case, I/O was faster on the SP, whereas for the large case, I/O took almost the same time on both systems. Communication required for I/O was faster on the Paragon in both cases. The highest read bandwidth obtained was 48 Mbytes/sec. and the highest write bandwidth obtained was 31.6 Mbytes/sec., both on the SP.

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15 p.

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OSTI as DE96013596

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  • 3. international conference of the Austrian Center for Parallel Computation, Klagenfurt (Austria), 22-25 Sep 1996

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  • Other: DE96013596
  • Report No.: ANL/MCS-P--569-0296
  • Report No.: CONF-9609206--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 273774
  • Archival Resource Key: ark:/67531/metadc670183

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  • September 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • June 23, 2016, 1:03 p.m.

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Thakur, R.; Gropp, W. & Lusk, E. An experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon using a production application, article, September 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc670183/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.