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Todd Gamblin @tgamblin.bsky.social · 28/09/2026

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...

hpcwire.com

2026 HPCwire Readers’ Choice Awards – Voting is Open! - HPCwire

Welcome to the 2026 HPCwire Readers’ Choice Awards Voting! The HPCwire Readers’ Choice Awards recognize the most outstanding individuals, organizations, products, and technologies in the industry. The...

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Spack @spackpm.bsky.social · 25/06/2026

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.

Asher Antao presenting to a large conference room

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Spack @spackpm.bsky.social · 22/06/2026

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

Tutorial room full of people at ISC with Greg Becker presenting

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Spack @spackpm.bsky.social · 22/06/2026

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

github.com

Release v1.2.0 (2026-06-21) · spack/spack

v1.2.0 is a major feature release. The main changes you'll notice are the new, parallel installer and the many performance improvements we've added. There are also usability features like concretiz...

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 18/06/2026

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.

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Spack @spackpm.bsky.social · 15/06/2026

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...

hpcic.llnl.gov

2026 HPC Tutorials | HPC Innovation Center

The 2025 HPC Tutorials offer free hands-on workshops from mid-July to mid-September, covering a modern, open-source HPC software stack for all experience levels. Participants can follow tutorials usin...

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Kenneth Hoste (boegel) @boegel.bsky.social · 19/05/2026

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

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EESSI @eessi.bsky.social · 08/05/2026

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...

event.ugent.be

Event Registration

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Spack @spackpm.bsky.social · 27/01/2026

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/...

github.com

Release v1.1.1 · spack/spack

v1.1.1 (2026-01-14) Usability and performance enhancements solver: do a precheck for non-existing and deprecated versions #51555 improvements to solver performance (PRs #51591, #51605, #51612, #51...

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Spack @spackpm.bsky.social · 15/01/2026

There’s an example of how to set up a binary cache here: - spack-tutorial.readthedocs.io/en/latest/tu... And an action to use buildcaches in CI here: - github.com/spack/setup-...

spack-tutorial.readthedocs.io

Binary Caches Tutorial - Spack Tutorial documentation

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EESSI @eessi.bsky.social · 11/01/2026

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

eessi.io

Using Spack on top of EESSI: A Proof of Concept - European Environment for Scientific Software Installations (EESSI)

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 15/12/2025

"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...

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Kelton Halbert @stormscale.io · 04/12/2025

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.

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 20/11/2025

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! 💚 💙 ❤️

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Spack @spackpm.bsky.social · 15/11/2025

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/...

github.com

Release v1.1.0 (2025-11-14) · spack/spack

v1.1.0 features major improvements to compiler handling and configuration management, a significant refactoring of externals, and exciting new experimental features like a console UI for parallel i...

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Spack @spackpm.bsky.social · 02/10/2025

seconding spack slack -- join at slack.spack.io

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Spack @spackpm.bsky.social · 02/10/2025

You should also be able to run `spack diff /hash1 /hash2` to see

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Spack @spackpm.bsky.social · 02/10/2025

you could also try running `spack solve` (debug thing) instead of `spack spec`, both without forcing the option and with. It'll show you the optimization criteria.

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Spack @spackpm.bsky.social · 02/10/2025

Run `spack spec --json /hash` to see what's in the hash.

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Spack @spackpm.bsky.social · 02/10/2025

`spack bulidcache list -l` will give you hashes. If you try to build and require the thing you think you want by hash (^/abc123), Spack should tell you why it doesn't work.

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Spack @spackpm.bsky.social · 02/10/2025

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

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 01/10/2025

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.

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 24/09/2025

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...

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Verónica MV (she/ella) @verolero86.bsky.social · 22/09/2025

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

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 19/09/2025

🏆 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

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Compute! Paris @computeparis.bsky.social · 16/09/2025

📢 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

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Spack @spackpm.bsky.social · 16/09/2025

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

youtube.com

Installing your software packages with Spack

YouTube video by Sharcnet HPC

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 31/07/2025

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...

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Brad Chamberlain @bradcray.bsky.social · 22/07/2025

Congratulations to the Spack team on reaching this significant milestone!

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Todd Gamblin @tgamblin.bsky.social · 20/07/2025

Hard to believe!

> spack --version
1.0.0 (73eaea13f381e3495299284856fd02a64e1d154c)
>

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zaptohome.bsky.social @zaptohome.bsky.social · 20/07/2025

Cant wait to try this out. Huge achievement!

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Kelton Halbert @stormscale.io · 20/07/2025

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.

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Spack @spackpm.bsky.social · 20/07/2025

💥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/...

github.com

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Todd Gamblin @tgamblin.bsky.social · 07/05/2025

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

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Todd Gamblin @tgamblin.bsky.social · 29/04/2025

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!

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Spack @spackpm.bsky.social · 10/04/2025

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.

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 09/04/2025

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...

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Spack @spackpm.bsky.social · 09/04/2025

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

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Spack @spackpm.bsky.social · 12/03/2025

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...

spack.io

The schedule is live for the first Spack User Meeting!

The schedule for SUM25, held at HPSFCon 2025, is online! We’ve got a great lineup with 34 contributed talks and updates on the Spack community and Spack v1.0.

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High Performance Software Foundation (HPSF) @hpsf.bsky.social · 12/03/2025

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...

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