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Conference call notes 20150106

Kenneth Hoste edited this page Jan 6, 2015 · 6 revisions

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Notes on the 23rd EasyBuild conference call, Tuesday January 6th 2015 (3.00pm - 3.30pm CET)

Attendees

Alphabetical list of attendees (5):

  • Andy Georges (HPC-UGent, Belgium)
  • Eric Gregory (JSC, Germany)
  • Kenneth Hoste (HPC-UGent, Belgium)
  • Alan O'Cais (JSC, Germany)
  • Robert Schmidt (OHRI, Canada)

Agenda

  • outlook to EasyBuild v2.0 (Kenneth)
  • overview of major upcoming features (Kenneth)

Notes

Outlook to EasyBuild v2.0
Overview of major upcoming features

notes:

  • overview of features we have in mind for the coming weeks/months
    • no guarantees w.r.t. when they will be worked on!
  • of particular interest to HPC-UGent:
    • support for only (re)generating module file, potentially under a different module naming scheme and for existing installations
    • support for module files in Lua syntax and module families/properties
  • of particular interest to JSC:
    • support for resolving dependencies via subtoolchains & installing dependencies with minimal required toolchain
Other topics
  • issue with binutils build with OS-provided zlib and modules loaded that have another zlib as a dependency (Eric)
    • binutils tools issue a warning due to zlib version mismatch
    • two possible solutions:
      • statically link (OS-provided) zlib into binutils
      • avoid installing a zlib module with eb using --filter-deps=zlib configure option
  • (Perl) script(s) to determine reverse dependencies for EB-installed software (Eric), used for:
    • picking versions of common dependencies (e.g. zlib, Python, ...) and avoid too many different versions of common dependencies
    • determining impact of removing a particular module (that may be used as a dependency for others)
    • determining which toolchain module to use based on what module spider specifies
      • Lmod is unaware of toolchains, and thus specifies individual toolchain components to load rather than a single toolchain module
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