The HDF Group Joins the COVID-19 High Performance (HPC) Consortium

The HDF Group (HDF®), the maintainers and creators of the open source HDF5 library and file format, has joined the COVID-19 High Performance Computing (HPC) Consortium as an affiliate to provide expertise that can enhance and accelerate COVID-19 research.

The HDF Group and COVID-19

Dear HDF Community, Nothing is more important than the need to protect the health and safety of those most vulnerable to COVID-19. The HDF Group is taking steps to minimize health risks to our teammates and their families, our clients, and our communities by closing our Champaign office and asking all employees to work remotely.

Breitenfeld named co-chair of CGNS Steering Committee

Champaign, IL—Scot Breitenfeld, a 10-year employee of The HDF Group has been named co-chair of the CFD General Notation System (CGNS) Steering Committee. The CGNS provides a portable and extensible standard for the storage and retrieval of computational fluid dynamics (CFD) analysis data. The CGNS Steering Committee is responsible for the development, evolution, support, and

New Service Desk launched by The HDF Group

We are pleased to announce the launch of The HDF Group’s new web-based Service Desk. The Service Desk (https://help.hdfgroup.org) is now available to the entire HDF community to submit issues, help requests, and bug reports.

Community Ticket Access now available

After many requests, we are happy to announce we have opened our bug tracker to the community. The HDF Group has used Jira to record bugs, issues, and feature requests for many years, giving ticket numbers (usually HDFFV-#####) out, with no self-service way for users to follow-up on those tickets.

The HDF Group Appoints Two New Board Members

The HDF Group is pleased to announce the appointments of Jessica Popp, Senior Director of Engineering at SendGrid and E.G. Nadhan, Chief Technology Strategist, Central Region, Red Hat to the HDF Group Board of Directors.

C++ has come a long way and there’s plenty in it for users of HDF5

A few years ago, I was looking for a data format with low latency block and stream support. While protocol buffers offered streams, it was lacking indexed block access. Soon, I realized I was looking for a container with file system-like properties. When I examined HDF5, I found it was very close to what I needed to store massive financial engineering datasets….

Citations for HDF Data and Software

The topic of software citation has been discussed in many forums recently and several major discovery repositories (e.g. zenodo and DataCite) support metadata for software in addition to datasets and other resource types. HDF5 stradles the boundary between the dataset and software worlds. It is most commonly thought of and referred to as a data format, but, as in any case, data written in the HDF formats can not be read without HDF software. So, the answer to the question: is it a format or is it software? is clearly both.

Community development projects from The HDF Group

We are pleased to announce the launch of HDF Group’s new Support Portal and the HDF Forum. The new Support Portal, is located at https://portal.hdfgroup.org is the new home of materials previously found at support.hdfgroup.org. The old support will remain online but will no longer be updated. The new HDF Forum can be found at

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