Telcon: 2016 07 28

Participants

1. Todd Gamblin (LLNL)
2. Brandon (NERSC)
3. Greg Becker (LLNL)
4. Greg Lee (LLNL)
5. Peter Scheibel (LLNL)
6. Robert French (ORNL)
7. Matt Belhorn (ORNL)
8. Liz (Fermi)
9. Elizabeth Fischer (NASA)

News

1. High priority issues:
2. #1325 How to deal with changing hashes and reinstalls * Elizabeth has a proposal for how we can address this through aliases: #1338
   • allows hashes to change underneath spec aliases
   • similar to views as described in the spack paper
3. #1178 / #1377 Cannot uninstall package by hash

SUGGESTION: Have a "garbage collection" option to uninstall all specs EXCEPT a chosen set.

1. PRs that need to be merged:

2. #1376 Unified cray platform - same cray platform across all cray machines - Matt Belhorn added automatic backend detection - Continued issues with non-uniformity of Cray machines:

   • front-end architecture needs autodetection (we can do this like on other linux distros)
   • LANL unable to use platform detection from this module (LANL uses default bashrc)
   • need auto-detection not for admins but for developers/application people

3. #908

4. #1013

5. #1361

6. #1186?

7. @hartzell

8. PEP8 plans

9. Fix issue with PEP8 breaking on Python 2.6 (latest version in Travis does this) * use spack exclusively for bringing in python deps? After #1013?

10. AWS

11. Now have AWS accounts at LLNL, working on CI infrastructure * will allow testing packages * will increase overall robustness

12. Discussion w/@citibeth about user environments

• would be useful to have a "build a list of specs" feature
  • similar to Conda's environments.
  • Allows for reproducible environments.

1. @citibeth on uninstalling packages by hash:

• it would be nice to keep known hashes around for reproducibility.
• needs garbage collection.
• someone could do this right now based on explicit specs.
• @citibeth would like to also allow a list of specs from the user.