Spack

💥📦 Spack Packages v2026.10.0 is out! 📦💥 This release has 9,095 packages, up from 8,752 in 2026.06.0. Check out the full release notes here: github.com/spack/spack-...

It's long overdue, but we finally managed to get a blog post out on the joint event we had with EESSI & Spack in Bologna at CINECA back in May 2026. Includes links to presentation materials and recordings of all talks, from intro-level to more advanced. blog.easybuild.io/2026/05/22/e... #HPC

Proud that both @spackpm.bsky.social and @hpsf.bsky.social are nominated for HPCWire Reader's Choice Awards! If you think the communities we've built around these projects made a lasting difference in the #hpc world, please consider voting! www.hpcwire.com/2026-hpcwire...

youtu.be/eW0kK4PUKdY

Tomorrow! Join Spack maintainers for a live tutorial, July 7 and 8 from 9-12pm PT. ✨ Sign up here: https://hpcic.llnl.gov/tutorials/2026-hpc-tutorials

80+ people in the room for the Spack BOF at #ISC26! We presented highlights from Spack v1.2, and now Asher Antao is presenting how CSC #hpc and their users are using Spack on their new Roihu machine.

Full house today as Greg Becker kicks off the #ISC26 Spack tutorial!

Spack v1.2.0 is out, loaded with features and performance improvements! Highlights: 🧵Parallel installer 🛠️Concretization groups 🧠Concretization caching 📝SBOMs 🔒spack isolate 🏖️ experimental sandboxing Get it now! github.com/spack/spack/... Demo: asciinema.org/a/755827

Heading to #ISC26? 🚀 HPSF projects are leading tutorials, talks, and BoFs throughout the week, including sessions from E4S, Kokkos, OpenCHAMI, and Spack. Stop by, meet the communities, and see what's next for open source HPC software.

LLNL’s High Performance Computing Innovation Center (HPCIC) is bringing back its summer tutorials, and there’s once again a 🎉Free Spack tutorial July 7-8!🎉 📝Register here for ours and other open source software tutorials! hpcic.llnl.gov/tutorials/20...

Day 1 of the joint EasyBuild / EESSI / Spack tutorial at CINECA, co-organized with the MaX EuroHPC Centre-of-Exellence, starts with an introduction to all 3 projects, followed by an introduction to the EuroHPC Federation Platform. @easybuild.bsky.social @eessi.bsky.social @spackpm.bsky.social

Tue-Thu 19-21 June'26, an EasyBuild+EESSI+Spack tutorial/hackathon is being organized at CINECA (@cineca.bsky.social) in Bologna, Italy. In-person attendance is fully booked, but remote attendance (via Zoom) is still possible. More details, including registration via event.ugent.be/registration...

Spack v1.1.1 is out! This is a patch release with some notable improvements: * Python 3.14 support * Better error messages for missing/deprecated versions * Major performance improvements for the solver Read it all in the release notes! #hpc #spack github.com/spack/spack/...

New blog post: Using Spack on top of EESSI: A Proof of Concept Can we convince Spack to reuse software installations available in EESSI to resolve required dependencies when installing QuantumESPRESSO? www.eessi.io/docs/blog/20... @spackpm.bsky.social

"With HPSF, the #HPC community now has what I consider to be the largest and healthiest forum for developing and nurturing open source software that it ever has," says @bradcray.bsky.social in Chapel blog: chapel-lang.org/blog/posts/1...

PSA, if you’re looking to do something like this, I highly recommend using @spackpm.bsky.social to manage your build environment. You can build NCEP’s GRIB2, BUFR, and “ip” libraries, along with other dependencies like Proj. Would be much harder without it.

So proud to be recognized as the Readers' Choice for Best HPC Collaboration in HPCwire! Thank you once again to everyone who voted, and everyone who visited us at SC this week! 💚 💙 ❤️

Spack v1.1.0 and spack-packages v2025.11.0 are out! 🥳Features: 🏗️ Compiler control (unmixing, %%) 📦 Improved externals ⬇️ Git fetching 😌 Configurable config 👩🏻‍🔬Experimental: 👩🏻‍💻 New parallel console UI 🏎️ Concretization caching More here! github.com/spack/spack/...

Join us in Chicago in March, when we'll hold the second in-person Spack User Meeting in conjunction with HPSFCon 2026! Stay tuned for details! #hpc #hpsf #spack

Great news! The date & location is locked in for #HPSFCon 2026. Save the date: ➡️ HPSF Conference 📅 March 16-20, 2026 📍 Chicago, IL The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.

Missed our 4 day tutorial at ICPP? We've outlined the highlights in our latest blog ✏️ ✨ Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...

The morning session also included an overview of @spackpm.bsky.social presented by #LLNL's Caetano Melone #HPC #CARLA2025

🏆 HPSF is nominated for best HPC collaboration in this year’s HPCwire Readers' Choice Awards. 🏆 Spack 1.0 is also nominated for best HPC programming tool. Vote now: www.hpcwire.com/2025-hpcwire... #HPSF #Spack #HPCwire #HPCCollaboration #HPCProgrammingTool

📢 Talk Announcement "Reproducible software provisioning for high performance computing (HPC) and research software engineering (RSE) using Spack", by Martin Lang and Hans Fangohr. 📜 pretalx.com/pydata-paris-2025/talk/8C889E 📅 pydata.org/paris2025/schedule 🎟 pydata.org/paris2025/tickets

Spack v1.0.2 is out! This release has a number of bug fixes and some improvements. #hpc #packaging See the notes for details: github.com/spack/spack/...

Nice little intro to Spack by Pawel Pomorski of Compute Canada www.youtube.com/watch?v=MFbN...

Spack v1.0.1 is out! github.com/spack/spack/... This is a bug fix release -- check out the release notes for details! #hpc #spack

We're looking forward to participating in the 2025 International Conference on Parallel Processing (ICPP) 🤓 We'll be having a hands on workshop showcasing an introduction to Performance Portable HPC Development with Spack, Kokkos, and Trilinos. See you there ✨ hpsf.io/blog/2025/hp...

Congratulations to the Spack team on reaching this significant milestone!

Hard to believe!

Cant wait to try this out. Huge achievement!

This is excellent news! Spack is an incredible tool within the HPC software management space, but I also use it on my own Linux machine to manage builds and environments. Like conda for compiled code.

💥Spack v1.0 is out!💥 This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API. 🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes! github.com/spack/spack/...

@kermmartian.z80.me and I are hiring for a staff-level DevOps engineer! @spackpm.bsky.social expertise is particularly welcome.

Awesome to see 48 people in the room for the first ever Spack User Meeting at the @hpsf.bsky.social conference! Greg Becker is outlining the road to v1.0 in the opening session. #hpc #hpsf @spackpm.bsky.social

Don't forget to fill out the 2025 Spack community survey -- it's open until this Saturday, May 3. Help us get to 200 responses -- we're only 15 away!

Join us at the Spack User Meeting, May 7-8 at HPSFCon! We've got 34 presenters lined up and can't wait to hear what they're all doing with Spack.

In May at #HPSFCon in Chicago, catch the Spack User Meeting to participate in sessions such as: 🌍 State of the Spack Community 🎉 Spack v1.0 ⚡ Optimizing Spack: Multi-Package Parallel Builds for Faster Installation 🧩 Fast Binary Installation with Spack Splicing See: hpsf2025.sched.com/overview/typ...

Hey Spack community! We're kicking off the 2025 Spack User Survey! Take 10-15 min to tell us how you feel: 📝https://forms.gle/G7xoddMwPF1k1BxT7 These surveys are invaluable for helping us set development priorities, so don't delay! We'll keep this open until May 3. #hpc

The schedule for the first annual Spack User Meeting (SUM25) is online! We've got 34 talks from user and contributors around the world. Couldn't have asked for a better set of speakers. See you all in Chicago May 7-8! Register before the early bird deadline on March 21! spack.io/sum25-schedu...

We’re pleased to announce the 2025 HPSF Conference schedule is now live! #HPSFCon will feature technical sessions, panels, discussions, workshops, & meetings for a number of HPSF projects, featuring talks from users & contributors. Here’s a sneak peek at what you can expect: hpsf.io/blog/2025/an...

And there’s soooooo much wasted disk space installing every package 9001 times across venvs. One of the things I like about spack is that there is a global install cache and then it just assembles a local view with links.

Choice paralysis of the day: #Slurm, #Spack and #OpenHPC BoF sessions all scheduled in the same time slot at #SC24. We do love parallelism in the #HPC community.

Don't miss the Spack Community BoF at SC'24 💬 #Spack is a package manager for scientific computing with a rapidly growing #opensource community of over 1,400 contributors from academia, industry, & laboratories around the world. See you today at 12:15pm in room B310! #SC24 #HPSF #HPC

Over 100 people in the room for the #sc24 Spack BOF! We’re announcing: - Spack user group meeting, May 2025 - Spack v0.23 release this week - Spack v1.0-alpha1 released today! Oh and there are still T-shirts! Come and stay til the end! #hpc

Another year another batch of spack shirts! Come for the second half of our #sc24 tutorial to get yours… Maybe we’ll have some leftover at the BOF on Thursday, but why take the chance?

Lots of good questions as Phil Sakievich (Sandia) presents the config section of our #sc24 tutorial. More people keep trickling in! #hpc