Telcon: 2024 01 24 - spack/spack GitHub Wiki

Wednesday January 24th, 9am PT (UTC -8:00)

Attendees

• Peter Scheibel (host)
• Cameron Walter
• Chris Washburn
• Dom Heinzeller
• Jakov Petrina
• Mark Krentel
• Massimiliano Culpo
• Pariksheet Nanda

Agenda

There are no pre-planned agenda items: this meeting is just for Q&A

• Cameron: Manage an environment on an old system
  • Using an environment on a shared FS on this system
  • Moving to a new system with same OS but different processor
  • Want to avoid reinstalling on the new OS
  • And want to reuse older deps
  • Peter: if new target is compatible with old target, Spack's concretizer will automatically reuse things
  • Todd: reuse is also highly-prioritized so should be common
• Nick Romero: https://github.com/spack/spack/issues/39993
  • Multiple instances of a package installed for a Spack instance on a shared FS used from multiple systems
  • Want spack load to pick the arch of the current system
  • Right now have to do spack load hdf5 --target=
  • Todd: PR for picking one for the current arch (https://github.com/spack/spack/pull/34991)
  • Making one spack env per target would also resolve this
• Todd: @Jakov, you might be interested in Tom Scogland's PR that creates a Spack OS
  • See: https://github.com/spack/spack/pull/42082
  • Includes build of glibc
• Pariksheet: Spack Wikipedia page
  • History of adoption?
  • Large organizations using it
  • https://spackpm.slack.com/archives/C5W7NKZJT/p1677693415828229
  • https://en.wikipedia.org/wiki/Draft:Spack_(package_manager)
  • https://github.com/spack/spack-user-survey
  • https://github.com/spack/spack-contributions (who is contributing to spack)