Spack
@spackpm.bsky.social
A flexible package manager designed to support multiple versions, configurations, platforms, and compilers.
🌎 spack.io
👩💻 github.com/spack/spack
💬 slack.spack.io
🌎 spack.io
👩💻 github.com/spack/spack
💬 slack.spack.io
Reposted by Spack
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
Sign up here: https://hpcic.llnl.gov/tutorials/2026-hpc-tutorials
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...
hpcic.llnl.gov
July 6, 2026 at 4:30 PM
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
Sign up here: https://hpcic.llnl.gov/tutorials/2026-hpc-tutorials
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
Highlights:
🧵Parallel installer
🛠️Concretization groups
🧠Concretization caching
📝SBOMs
🔒spack isolate
🏖️ experimental sandboxing
Get it now! github.com/spack/spack/...
Demo: asciinema.org/a/755827
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...
github.com
June 21, 2026 at 11:16 PM
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
Highlights:
🧵Parallel installer
🛠️Concretization groups
🧠Concretization caching
📝SBOMs
🔒spack isolate
🏖️ experimental sandboxing
Get it now! github.com/spack/spack/...
Demo: asciinema.org/a/755827
Reposted by Spack
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.
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.
June 18, 2026 at 5:17 PM
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.
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...
🎉Free Spack tutorial July 7-8!🎉
📝Register here for ours and other open source software tutorials!
hpcic.llnl.gov/tutorials/20...
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...
hpcic.llnl.gov
June 15, 2026 at 5:43 PM
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...
🎉Free Spack tutorial July 7-8!🎉
📝Register here for ours and other open source software tutorials!
hpcic.llnl.gov/tutorials/20...
Reposted by Spack
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
@easybuild.bsky.social @eessi.bsky.social @spackpm.bsky.social
May 19, 2026 at 12:37 PM
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
@easybuild.bsky.social @eessi.bsky.social @spackpm.bsky.social
Reposted by Spack
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...
In-person attendance is fully booked, but remote attendance (via Zoom) is still possible.
More details, including registration via event.ugent.be/registration...
Event Registration
event.ugent.be
May 8, 2026 at 12:38 PM
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...
In-person attendance is fully booked, but remote attendance (via Zoom) is still possible.
More details, including registration via event.ugent.be/registration...
Reposted by Spack
Un bon argument pour @spackpm.bsky.social !
January 28, 2026 at 3:23 PM
Un bon argument pour @spackpm.bsky.social !
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/...
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/...
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...
github.com
January 27, 2026 at 3:09 AM
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/...
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/...
Reposted by 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
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
Using Spack on top of EESSI: A Proof of Concept - European Environment for Scientific Software Installations (EESSI)
www.eessi.io
January 11, 2026 at 3:21 PM
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
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
Reposted by Spack
"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...
@bradcray.bsky.social in Chapel blog: chapel-lang.org/blog/posts/1...
December 15, 2025 at 6:13 PM
"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...
@bradcray.bsky.social in Chapel blog: chapel-lang.org/blog/posts/1...
Reposted by Spack
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.
December 4, 2025 at 12:08 AM
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.
Reposted by Spack
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! 💚 💙 ❤️
Thank you once again to everyone who voted, and everyone who visited us at SC this week! 💚 💙 ❤️
November 20, 2025 at 8:31 PM
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! 💚 💙 ❤️
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/...
🥳Features:
🏗️ Compiler control (unmixing, %%)
📦 Improved externals
⬇️ Git fetching
😌 Configurable config
👩🏻🔬Experimental:
👩🏻💻 New parallel console UI
🏎️ Concretization caching
More here!
github.com/spack/spack/...
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...
github.com
November 15, 2025 at 6:24 PM
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/...
🥳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
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.
➡️ 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.
October 1, 2025 at 11:37 PM
Reposted by 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.
➡️ 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.
October 1, 2025 at 6:42 PM
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.
➡️ 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.
Reposted by Spack
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...
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
September 24, 2025 at 4:29 PM
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...
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
Reposted by Spack
The morning session also included an overview of @spackpm.bsky.social presented by #LLNL's Caetano Melone #HPC #CARLA2025
September 22, 2025 at 10:32 PM
The morning session also included an overview of @spackpm.bsky.social presented by #LLNL's Caetano Melone #HPC #CARLA2025
Reposted by Spack
🏆 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
🏆 Spack 1.0 is also nominated for best HPC programming tool.
Vote now: www.hpcwire.com/2025-hpcwire...
#HPSF #Spack #HPCwire #HPCCollaboration #HPCProgrammingTool
September 19, 2025 at 4:29 PM
🏆 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
🏆 Spack 1.0 is also nominated for best HPC programming tool.
Vote now: www.hpcwire.com/2025-hpcwire...
#HPSF #Spack #HPCwire #HPCCollaboration #HPCProgrammingTool
Reposted by Spack
📢 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
"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
September 16, 2025 at 7:01 AM
📢 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
"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/...
See the notes for details:
github.com/spack/spack/...
Release v1.0.2 (2025-09-11) · spack/spack
Bug Fixes
spack config edit can now open malformed YAML files. (#51088)
spack edit -b supports specifying the repository path or its namespace. (#51084)
spack repo list escapes the color code for ...
github.com
September 16, 2025 at 9:10 PM
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/...
See the notes for details:
github.com/spack/spack/...
Installing your software packages with Spack
YouTube video by Sharcnet HPC
www.youtube.com
September 16, 2025 at 4:28 AM
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
github.com/spack/spack/...
This is a bug fix release -- check out the release notes for details! #hpc #spack
Release v1.0.1 (2025-08-11) · spack/spack
Bug Fixes
Ensure forward compatibility of package hashing with the upcoming Python 3.14 release. (#51042)
The spack diff command now shows differences in runtime dependencies (e.g., gcc-runtime, g...
github.com
August 13, 2025 at 7:36 PM
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
github.com/spack/spack/...
This is a bug fix release -- check out the release notes for details! #hpc #spack