Spack

Spack is a package manager for supercomputers, Linux, and macOS. It makes installing scientific software easy. Spack isn’t tied to a particular language; you can build a software stack in Python or R, link to libraries written in C, C++, or Fortran, and easily swap compilers or target specific microarchitectures. Learn more here.

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.

Join us for the first Spack User Meeting!

SUM25, held at HPSFCon 2025, is a great opportunity to meet the community, exchange ideas, and present what you’ve built with Spack.

Announcing public binaries for Spack

Spack was designed as a from-source package manager, but today users can stop waiting for builds. Spack has been able to create binary build caches for sever...

Changes to bootstrapping in Spack v0.17

Starting with Spack v0.17, the new concretizer will be the default, and Spack will automatically install a new dependency (Clingo) from binaries. You can opt...

Podcast: Spack on CppCast

The CppCast podcast recently hosted Spack creator Todd Gamblin and core developer Greg Becker. They discuss a range of topics including an overview of the ex...

ECP annual meeting videos now available

Spack is the software deployment tool of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several ...

Spack User Survey 2020

Results from the Spack 2020 User Survey are out! Check out our summary below.

Spack featured on The Next Platform

The Next Platform provides in-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. ...

Spack at SC20

This year SC20 is fully virtual with events and sessions conducted over two weeks. Check out the Spack lineup below.

Spack R&D 100 award featured in LLNL magazine

The July issue of Lawrence Livermore’s magazine Science & Technology Review features Spack as one of the Lab’s four winning technologies from 2019. The a...