Tips & tricks¶
Long lists of elements for preconfigopts or options for configopts.¶
An example showing both is in recent LUMI NAMD EasyConfigs, e.g., "NAMD-3.0-cpeGNU-24.03-rocm-gpu-resident.eb".
-
Line 100 shows
preconfigoptsThe example is not ideal as it would have been better to join with
&&also to guarantee that the whole configure command fails if one of the commands inpreconfigoptsfailed. -
Line 106 shows the
configopts.
Of course, one could try to create one large string in Python, or break the assignment up, e.g.,
configopts = '--charm-arch $EBTYPECHARMPLUSPLUS '
configopts += '--charm-base $EBROOTCHARMPLUSPLUS '
...
(and note the spaces that we now have to add at the end), but the "join" method has something elegant, makes it very easy to add additional flags or commands, and is less error-prone. There is also plenty of space left on each line to explain why an option is used or what it means, to make the job easier for others who may want to update or customise this EasyConfig.