This repo contains the files for tweaking Lmod for VUB-HPC.

• Some extra strings for the language file used in our SitePackage.lua
• Our SitePackage.lua, see below what it all does
• Script to generate the Lmod cache on our systems
• admin.list file to give nag message on some modules

All of these get installed in /etc/lmod where recent versions of Lmod will pick them up.

The SitePackage.lua contains a couple of hooks:

• logmsg: A general function for logging
• module_age: calculates the 'age' of a module using the toolchain version
• load_hook: logging of loaded modules (and loaded by user or as dependency). It will also give warnings for 'old' modules.
• startup_hook: logs how Lmod was called and the used arguments
• msg_hook: adds a custom message to avail/list/spider
• errwarnmsg_hook: add as general disclaimer to all warnings and errors. It also tweaks the message on specific errors.
• visible_hook: hides some modules by name pattern or age
• get_avail_memory: returns the (cgroup) memory limit inside the current environment. This is added to the module sandbox to set memory limits depending on the allocated resources.