TY - GEN
T1 - An experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon using a production application
AU - Thakur, Rajeev
AU - Gropp, William
AU - Lusk, Ewing
PY - 1996
Y1 - 1996
N2 - We present the results of an experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon using a real three-dimensional parallel application code. This application, developed by scientists at the University of Chicago, simulates the gravitational collapse of self-gravitating gaseous clouds. It performs parallel I/O by using library routines that we developed and optimized separately for the SP and Paragon. The I/O routines perform two-phase I/O and use the parallel file systems PIOFS on the SP and PFS on the Paragon. We studied the I/O performance for two different sizes of the application. In the small case, we found that I/O was much faster on the SP. In the large case, open, close, and read operations were only slightly faster, and seeks were significantly faster, on the SP; whereas, writes were slightly faster on the Paragon. The communication required within our I/O routines 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.
AB - We present the results of an experimental evaluation of the parallel I/O systems of the IBM SP and Intel Paragon using a real three-dimensional parallel application code. This application, developed by scientists at the University of Chicago, simulates the gravitational collapse of self-gravitating gaseous clouds. It performs parallel I/O by using library routines that we developed and optimized separately for the SP and Paragon. The I/O routines perform two-phase I/O and use the parallel file systems PIOFS on the SP and PFS on the Paragon. We studied the I/O performance for two different sizes of the application. In the small case, we found that I/O was much faster on the SP. In the large case, open, close, and read operations were only slightly faster, and seeks were significantly faster, on the SP; whereas, writes were slightly faster on the Paragon. The communication required within our I/O routines 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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U2 - 10.1007/3-540-61695-0_3
DO - 10.1007/3-540-61695-0_3
M3 - Conference contribution
AN - SCOPUS:84949191768
SN - 3540616950
SN - 9783540616955
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 24
EP - 35
BT - Parallel Computation - 3rd International ACPC Conference with Special Emphasis on Parallel Databases and Parallel I/O, Proceedings
A2 - Boszormenyi, Laszlo
PB - Springer
T2 - 3rd International Austrian Center for Parallel Computation Conference with Special Emphasis on Parallel Databases and Parallel I/O, 1996
Y2 - 23 September 1996 through 25 September 1996
ER -