MPI I/O

Workarounds for OpenMPI bug exposed by make check in HDF5 1.13.3

November 4, 2022

While developing HDF5 1.13.3, a bug was discovered in OpenMPI’s default I/O layer, affecting OpenMPI versions 4.1.0-4.1.4. It will be fixed in future releases. This bug can cause incorrect results from MPI I/O requests, unless one of the following parameters is passed to mpirun…

Webinar Announcement: Parallel I/O with HDF5 and Performance Tuning Techniques

June 9, 2020

Scheduled for June 26, 2020 11:00 a.m. CDT, this webinar, presented by Scot Breitenfeld is designed for users who have had exposure to HDF5 and MPI I/O and would like to learn about doing parallel I/O with the HDF5 library.

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