Spack is a flexible, configurable, Python-based, and open-source HPC package manager. Spack automates the installation and fine-tuning of simulations and libraries, operating on a wide variety of HPC platforms and enabling users to build many code configurations.

In this video, LLNL’s Todd Gamblin and Greg Becker describe how Spack works and how its open source community has grown. They are joined by Lori Diachin, deputy director for the U.S. Department of Energy’s Exascale Computing Project, or ECP, who explains Spack’s value to the ECP software stack.