Conference call notes 20151013 - easybuilders/easybuild GitHub Wiki

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Notes on the 37th EasyBuild conference call, Tuesday October 13th 2015 (5pm - 5.30pm CET)

Attendees

Alphabetical list of attendees (8):

• Petar Forai (IMP/IMBA, Austria)
• Kenneth Hoste (HPC-UGent, Belgium)
• Robert McLay (TACC)
• Riccardo Murri (ETH Zurich)
• Alan O'Cais (JSC, Germany)
• Ward Poelmans (HPC-UGent, Belgium)
• Robert Schmidt (OHRI, Canada)
• Timothy Brown (University of Colorado @ Boulder)

Agenda

• agenda for the EasyBuild/Lmod workshop in Austin
  • https://github.com/hpcugent/easybuild/wiki/10th-EasyBuild-hackathon
• discuss the output that the WIP --extended-dry-run implementation now produces
  • see open pull request https://github.com/hpcugent/easybuild-framework/pull/1388
  • see the 'Example' section at http://boegel-eb.readthedocs.org/en/extended_dry_run/Extended_dry_run.html (draft documentation)
• early look at support for (fat) easyconfigs in YAML syntax (.yeb)
  • see http://caylo-easybuild.readthedocs.org/en/yeb-docs/Easyconfig_YEB_Format.html

Notes

EasyBuild/Lmod workshop

• move EasyBuild intro after Lmod intro, so TACC staff can join in after biweekly TACC meeting (ends ~10am)
• AustinPy meeting on Wednesday evening?
• social event on Sat: shooting range + visit San Antonio

eb --extended-dry-run

• print build/install dir as they will be used (rather than using /tmp/.../__ROOT__/...)
• print install prefix in dry run of sanity check
• difference between __ROOT__ and __fake__ paths (see setvar lines for netCDF in WRF module in example)

support for .yeb easyconfigs

• overview of roadmap
• some concern w.r.t. lifetime of support for current .eb easyconfigs
  • not going to disappear any time soon
  • unclear right now whether .yeb files will provide some flexibility as current .eb files
    • for example, "local variables" like python_version, string concatenation, ...?
  • if support for .yeb is stable, may become recommended easyconfig format
  • script will be implemented to help transitioning from .eb to .yeb
  • Riccardo: Python syntax of .eb easyconfigs is a plus, e.g. rely on environment variables for site customisations