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The EasyBuild community

The early years

EasyBuild as a project was conceived in 2009 by the HPC team at Ghent University (Belgium). The codebase was developed in-house, and went through a couple of redesigns as the team gradually learned the ropes of developing a sizeable software project and tried to tackle the never-ending corner cases of the installation procedures of scientific software. During these very early days, several summer interns were invaluable in their assistance in refining EasyBuild.

As the project grew and its usefulness became apparent, the HPC-UGent team begun to desire feedback from the HPC community at large. Maybe others would find EasyBuild useful? Or maybe this was actually a solved problem, and they were unknowingly reinventing the wheel...

The first step in this process was to pick a license. As many an in-house project, EasyBuild at the time lacked such formalities. This led to a short debate on open source licenses before the team landed on GPLv2. And no, commercial licenses never even made it to the table. Like so many open source projects, the goal was simple enough; scratch HPC-UGent's own itch and get some outside feedback to help in getting it done!

The first public release of EasyBuild became available in April 2012 and was tagged as version 0.5. This public release took place mostly out of necessity as the project was about to be presented at the HEPIX Spring Workshop 2012. Based on early feedback, the EasyBuild team realised others would indeed find EasyBuild useful, so efforts were made to produce a stable version to ensure that others could rely on the project if they wanted to.

(EasyBuild v1.0) was released in November 2012, barely seven months after version 0.5 was published. This first stable release coincided with the SC'12 conference in Salt Lake City, where the team handed out stickers and went around asking how everyone else installed scientific software. There was never much of a sales pitch, but the conversations very quickly took on a rather predictable script...

EasyBuild team member: How do you install scientific software?

HPC staff: We do it manually, and spend a lot of time on it.

EasyBuild team member: What if there was a tool that could help?

HPC staff: Nobody in their right mind would develop a tool like that. That's madness.

EasyBuild team member: What if we have a tool like this that you could use?

HPC staff: What does it cost?

EasyBuild team member: It's open source. It's free.

HPC staff: ... Yeah, cool. What about the hard stuff? When will you support OpenFOAM?

EasyBuild team member: We already do. And we support WRF too.

And then suddenly everyone was a friend. Beers and snacks started appearing out of nowhere and all the stickers disappeared. Once the beers and snacks had been "processed", EasyBuild took its place on the presentation floor. At SC'12, EasyBuild's stage was the PyHPC 2012 workshop.

Following the public release and the projects introduction into the HPC community, other sites started to use EasyBuild and actively contribute to the project. As odd as it might sound, this was quite unexpected. The EasyBuild team was hoping for feedback. Receiving contributions was a big surprising bonus. Early adopters were the University of Luxembourg, the Cyprus Institute, the University of Basel, and the Jülich Supercomputing Centre.

A worldwide community

Over the years EasyBuild has grown into a community project, which is used and developed by dozens (hundreds?) of HPC centres and consortia worldwide. Starting in 2016, the community has gathered for a yearly EasyBuild User Meeting which typically takes place a week before or after FOSDEM. The EasyBuild User Meeting is an open and highly interactive event that provides a great opportunity to meet fellow EasyBuild enthusiasts, discuss related topics, learn about new aspects of the tool, and how other HPC sites leverage it and integrate it with other tools like Jenkins, Ansible, CernVM-FS, ReFrame etc.

The map below shows from which cities the EasyBuild documentation has been visited in the last year (June 2019 - June 2020), and how often. The community has truly become global.

Cities from which EasyBuild documentation has been visited last year (June 2019-June 2020

HPC sites, consortia, and companies that use EasyBuild include (but are not limited to):

VSC logo JSC logo HPCNow! logo Fred Hutch logo Vienna BioCenter logo CÉCI logo Compute Canada logo UiO logo BEAR logo SNIC logo National University of Singapore logo IT4Innovations logo Texas A&M logo TU Dresden logo University of Melbourne logo University of Luxembourg logo EPCC logo Cyprus Institute logo University of Basel logo Microsoft logo


The EasyBuild community develops the project through the easybuilders GitHub organisation as set of repositories:


EasyBuild is maintained by an experienced team of HPC experts, including people from:

The EasyBuild maintainers implement additional features and bug fixes, review and test incoming contributions, and frequently release new stable versions.

Last update: April 21, 2022