Re: [Modules] "module load" behavior in module 3.2.10/4.5.2

[<Xav...@CE...>]

Hello Jens-Olaf,

Starting version 4.2, load and unload commands inside modulefile
imply definition of requirement or conflict.

"module unload intel" means unload intel + conflict intel
"module load intel/2020" means load intel/2020 + prereq intel/2020

Option --not-req allows to skip requirement/conflict definition. It
is available starting version 4.7.0.

With version 4.5.2, changing these two commands into:

module switch intel/2020

Should do what you expect.

Regards,
Xavier


On Thu, 2023-04-20 at 07:33 +0000, Jens-Olaf Beismann wrote:
> Good morning,
> 
> one of our customers observed a different behavior of commands in a
> module file when using it with either modules version 3.2.10 or
> version 4.5.2.
> 
> The module file (called jotest/1.0 for testing purposes) contains
> these lines
> 
> module unload intel
> module load intel/2020
> 
> Among the available modules we only have
> 
> intel/2020(default)
> 
> i.e. there is no other module file in the "intel" directory.
> 
> Now "module load jotest" works fine with version 3.2.10, i.e.
> afterwards intel/2020 and jotest/1.0 are loaded (independent of
> intel/2020 being loaded before or not).
> 
> With version 4.5.2, however, we get this error
> 
> % module load jotest
> Loading intel/2020
>   ERROR: Conflicting 'jotest/1.0' is loading
> 
> Loading jotest/1.0
>   ERROR: Load of requirement 'intel/2020' failed
> 
> We are still struggling to understand the actual reason for the
> error issued for "module load intel/2020" and therefore didn't yet
> find a way to achieve the desired result with 4.5.2. Any hints
> would be highly appreciated, in particular we'd like to understand
> if there's something conceptionally wrong with the unload/load
> sequence in "jotest/1.0".
> 
> Thank you and best regards,
> 
> Jens-Olaf
> ---
> Dr. Jens-Olaf Beismann          Benchmarking Expert
> High Performance Computing      NEC Deutschland GmbH     
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