Telcon: 2018 06 21

Attendees

• Peter Scheibel (host)
• Mike Pozulp
• Michael Sternberg
• Greg Becker
• Alicia Klinvex

Recent Events

• Improved version detection using package URLs: https://github.com/spack/spack/pull/8429

Discussion topics

• Michael: environment module packages and the module command
  • Open PRs: 6451, 7536
  • https://github.com/spack/spack/pull/6451#issuecomment-377079596
  • https://github.com/spack/spack/pull/6451#issuecomment-377355714
  • (Use the API that the shell gives) vs. (replicating module logic in spack)
  • https://github.com/spack/spack/pull/7536
• Using python extensions installed in separate prefixes: https://github.com/spack/spack/pull/8436
• Supporting packages without compilers
  • https://github.com/spack/spack/issues/7550
    • Related: don't propagate compilers from dependents always?
    • Peter: could avoid propagating compilers across run-only dependencies
  • https://github.com/spack/spack/issues/8531
  • Greg: in the long run compilers will not be a field on Specs, but rather be treated like another dependency (and packages won't need to depend on a compiler package)
    • Compilers are a build dependency that imposes a run dependency (e.g. the runtime libs for the package)
  • One example is that many python extensions don't need a compiler
  • Derivative issue: reinstallation of the intel-parallel-studio package (~10GB)
    • Peter: I think setting Spack-installed packages as externals would help: https://github.com/spack/spack/pull/7759