Conference notes for 2023 11 07

Notes for Lmod Zoom Meeting Nov. 7, 2023

• Q/A
  • Henrik got two questions/feature requests
  • Essential Open Source Software (EOSS) program could be a source for funding for Lmod
    • https://chanzuckerberg.com/eoss/
  • opt-in support in Lmod for printing warnings/errors when non-existing paths are passed to prepend_path/append_path
    • can be done yourself via implementing your own functions via SitePackage.lua
    • see https://lmod.readthedocs.io/en/latest/170_hooks.html#implementing-functions-in-sitepackage-lua
    • see tonumber example in https://github.com/TACC/Lmod/blob/main/contrib/TACC/SitePackage.lua for how to override function while still calling original
    • can also be done via lmod_config.lua, see https://lmod.readthedocs.io/en/latest/090_configuring_lmod.html#configuring-lmod-with-etc-lmod-lmod-config-lua
• Issue #673: add simple JsonShell
  • ...
• Issue #672: problem with lua-json when using Lua > 5.1
  • fixed by conditionally defining loadstring as load when using newer Lua versions
• issue #667
  • request to also report available extensions in output of ml --terse avail
  • motivated by HPC-UGent generating overview of installed software via Lmod, which should include modules + extensions
  • ml --terse --with-extensions avail numpy
  • will still need to run ml spider to know in which modules the extension is available (maybe also which extension version?)
  • list of extension would be preceeded by a "header" line that starts/ends with / to indicate that they're not related to the last path mentioned for available modules

    $ ml --terse --with-extension avail
    /modules/all:
    Python/3.6
    /#extension/
    #numpy
    

  • will be done in a way that supports module hierarchies as well
• issue #669: include modulerc.d/*.lua
  • coming soon

Attendees

• Robert McLay (TACC)
• Matthew Cawood (TACC)
• Kenneth Hoste (HPC-UGent)
• Henrik Bengtsson (UCSF, Wynton HPC, C4 HPC)
• Lev Gorenstein (Globus,UChicago)

Lmod @ SC23

• check TACC booth!

Next meeting

• Tue 5 Dec 2023 at 15:30 UTC