HPSF Conference 2025

The High-Performance Computing Services group at Lawrence Berkeley National Laboratory delivers extensive computing resources to Berkeley Lab and the University of California at Berkeley, supporting approximately 4,000 users and nearly 600 research projects across diverse scientific disciplines.

Over the past year and a half, we have modernized our primarily manual software build process using Spack, enabling us to meet the growing application and workflow demands of the HPC software stack.

This presentation will highlight how we leverage Spack’s features—such as environments, views, and module sets—to meet our specific needs and requirements. Additionally, we will discuss how, over the past year, our Spack pipeline, integrated with Reframe (a testing framework), has enabled our larger infrastructure team to efficiently plan and execute large-scale OS migrations across multiple scientific clusters in a short timeframe.