Telcon: 2022 06 22

Attendees

• Peter Scheibel (host)
• Kacper Kornet
• Massimiliano Culpo
• Phil Regier
• Tammy Dahlgren
• Brian Van Essen

Agenda items

• We want to remove some soft preferences to improve concretizer performance: https://github.com/spack/spack/issues/31199
  • It seems like a slowdown was introduced in https://github.com/spack/spack/pull/29926
  • We can add a poll on this: do you use per-package compiler/target/providers?
  • This will also be the subject of a future meeting
  • Temporary fix at https://github.com/spack/spack/pull/31226
• Reuse is now default
  • If you get unexpected concretization results, there are some issues with that resolved last week (so on latest develop)
  • Will shortly be backported to 18.1
• Continue from https://github.com/spack/spack/wiki/Telcon%3A-2022-06-08: multiple build systems used by one package

Possible Agenda items

• (Matt) if we build an environment, and one package fails, then module files are not generated
  • Want spack module refresh but only to generate module files that haven't been generated yet
• Updating compiler wrapper to strip -Werror (optionally): https://github.com/spack/spack/pull/30284
• (Wileam) Adding fpm as a build system
  • Issue on fpm repo: https://github.com/fortran-lang/fpm/issues/79
• Default action for concretization in environments: https://github.com/spack/spack/pull/29942#issuecomment-1097287194
• Continue from https://github.com/spack/spack/wiki/Telcon%3A-2022-04-06: warning() directive
• (Wileam) Can't bootstrap llvm@13 and @14 if gold is enabled (which is the default behavior) https://github.com/spack/spack/issues/29350
  • Pinpointed issue to external package (binutils carried by OS) based on comment
  • PR drafted: https://github.com/spack/spack/pull/30954
  • Can externals detection be expanded from executables only to arbitrary files (e.g. header or .a/.so library files)?
• How to reorganize the docs?
• Continue from https://github.com/spack/spack/wiki/Telcon%3A-2022-04-13: not in spec syntax