HDF News

We are very pleased to announce the release of HDF5-1.12.1, which can now be obtained from the HDF5 Download page. Information about this release can be found on the Support Portal as follows: HDF5 documentation Software Changes from Release to Release HDF5-1.12.1 is a minor release with a few new features and changes: The new Mirror and Splitter VFDs were added, enabling "concurrent" file writes to two files, one of which could be on a remote system. The following vulnerability issues were addressed:CVE-2018-11206CVE-2018-14033 (same as CVE-2020-10811)CVE-2018-14460 Autotools and CMake options were added to enable or disable file locking. C functions and C++, Fortran and Java wrappers were also added for setting and getting the file locking parameters. In addition, file locking now works on Windows. Various improvements were...

HSDS (Highly Scalable Data Service) is a REST-based service for reading and writing HDF data. Initially developed as a NASA Access 2015 project, the HDF Group has continued to invest in the project, and as we'll see, the latest version has a bevy of new and interesting features....

We are pleased to post this white paper from The HDF Group intern, Chen Wang. This paper looks at the steps of analyzing and tuning the HACC-IO benchmarks, the impact of different access patterns, stripe settings and HDF5 metadata. It also compares the five benchmarks on two different parallel file systems, Lustre and GPFS and shows that HDF5 with proper optimizations can catch up the pure MPI-IO implementations. An I/O Study of ECP Applications...

On Friday, July 31, The HDF Group employee Chen Wang presented a Study of HACC-IO Benchmarks. We wanted to share these presentations with our community. Slide Deck https://youtu.be/AkcOwg3qLZo   Additionally, Chen Wang also wrote the white paper, An I/O Study of ECP Applications....