HPIO
The HPIO (High-performance I/O) benchmark is a tool for
evaluating/debugging noncontiguous I/O performance for MPI-IO. It
allows the user to specify a variety of noncontiguous I/O access
patterns and verify the output. It has been optimized for PVFS2
MPI-IO hints, but can be augmented to use MPI-IO hints for other file
systems. One of the easiest ways to understand this benchmark is to
read my IPDPS 2006 publication here (note that it was referred to
as NCIO in the publication). Contact me for any additional
information and/or suggestions.
2007.04.19 Download here
(hpio-1.55.tar.gz). - Added an atomicity mode argument.
Drastically changed the hints interface. Use the -H option to add
as many MPI-IO hints as necessary at runtime.
2007.01.25 Download here
(hpio-1.48.tar.gz). - Fixed correctness count of checked bytes,
fixed filenames, and updated documentation.
HPIO Parameter Visualization
