Title :
Analyzing the I/O behavior of supercomputer applications
Author :
Miller, E.L. ; Katz, R.H.
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
The authors describe the collection and analysis of supercomputer I/O (input/output) traces on a Cray Y-MP. Analyzing these traces, which came primarily from programs with high I/O requirements, shows the file system I/O patterns that these applications exhibit. The authors classify application I/Os into three categories, required, checkpoint, and data staging, and show how memory size and CPU speed are likely to affect each category. An analysis of the data shows that data staging I/O dominates when it is present.<>
Keywords :
Cray computers; performance evaluation; Cray Y-MP; checkpoint; file system I/O patterns; high I/O requirements; memory size; supercomputer applications; Aggregates; Application software; Bandwidth; Cache storage; Geophysics computing; NASA; Pattern analysis; Programming profession; Storage automation; Supercomputers;
Conference_Titel :
Mass Storage Systems, 1991. Digest of Papers., Eleventh IEEE Symposium on
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-8186-2155-9
DOI :
10.1109/MASS.1991.160208
