Spack

A flexible package manager designed to support multiple versions, configurations, platforms, and compilers. Join us at

[Spack @spackpm]

💥📦 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:
https://t.co/Ff8dIRm5TD

[Todd Gamblin / @tgamblin.bsky.social @tgamblin]

Proud that both @spackpm and @HPSFofficial 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!

https://t.co/3Hm2jQPVLN

[neko @neko_sub1_nos]

root権限がないserverなどで適宜必要なコマンドを入れるのに毎回buildするコードを書いていたが、Spackがあると依存関係も把握してくれる上に既にintallされているものは使える様にしてくれてとても便利になった。uvみたいに複数の環境を持てるのも面白い

https://t.co/VlvScdLj7X

[Spack @spackpm]

@JeffdotLayton Thanks for featuring spack!

[Spack @spackpm]

@JeffdotLayton

In https://t.co/tQwGtuPyNo

> spack env depfile > spack.lock

Isn’t needed. Env depfile was a stopgap to use gmake’s jobserver before. It outputs a makefile. In 1.2 install is concurrent by default.

spack.lock is created automatically when the env is installed.

[High Performance Software Foundation @HPSFofficial]

Tomorrow! Join Spack maintainers for a live tutorial, July 7 and 8 from 9-12pm PT. ✨

Sign up here: https://t.co/2P5emJuAiA

[Kitware @Kitware]

Supporting HPC software across platforms introduces challenges that go far beyond portability.

Efforts to bring Spack to Windows highlight the complexity of managing software stacks in environments with different toolchains, system behaviors, and expectations.

Watch to learn more: https://t.co/4EpdHZFTAW

#HPCSoftware #CrossPlatform #TechInnovation #HPSF

[LLNL Computing @Livermore_Comp]

Don't miss the free @spackpm open-source HPC software tutorials on July 7 & 8! Sign up: https://t.co/CGo7tURDVA

[Spack @spackpm]

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 @CSChpc and their users are using Spack on their new Roihu machine.

[Spack @spackpm]

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

[Spack @spackpm]

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! https://t.co/rSMv1nVvig

Demo: https://t.co/l9dh6zeFRE

[High Performance Software Foundation @HPSFofficial]

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.

[B. Northern @ZeroDarkDev]

Definitely gonna attend.

Can't wait!

[Spack @spackpm]

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!

https://t.co/9mtEiCTCaH

[ARCHER2 HPC Service @ARCHER2_HPC]

An ARCHER2 User's Spack Primer
Wednesday 22nd April 2026 15:00 - 16:00
Free webinar, all welcome
https://t.co/r4KXf2My8M

[Phoronix @phoronix]

The Good & The Bad When Using LLMs To Write Spack Packages

https://t.co/LG2FvR8ykY

[EnvModules @EnvModules]

On Wednesday we had our very first Environment Modules Meeting at #HPSFcon. Many thanks to all the attendees for the very good discussions we had. A particular interest has been shown in variants, lua modulefile support and integration with @Spackpm.

[Spack @spackpm]

The agenda for the 2026 Spack User Meeting is live!

Check it out below, along with the rest of HPSFCon and 9 other project meetings.

Don't miss all these awesome talks -- join us in Chicago this March! #hpc #hpsf

https://t.co/BanYOuPg8k

[David Conner @aionfork]

well that's just about the most useful diagram i've ever seen

https://t.co/kdHKgtB0fO

[Spack @spackpm]

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

https://t.co/o8FCNjUYGL