Giovanni

As suggested buy @marcodelapierre , [this page](https://www.plumed.org/doc-v2.8/user-doc/html/mymodules.html) should contain a list of dependencies between modules. (see #834)

Currently, if one tries to disable a `always` on module, `./configure` does not complain, but the module is then activated (as expected). I would like to fix this, so that...

Python hills time average

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##### Description This is a tool I have used internally for some time. It can be used for "hills averaging", that is to process a hills file and produce another...

This is for: @tetsuyamorishita I recently parallelized simplemd with OpenMP. Running with two threads (which we do by default on GitHub Actions) slightly changes the trajectories. The LogMFD tests were...

Currently, we have suffixes for files generated by different replicas. However, if a user by mistake writes the same file twice in the same replica, the file will be written...

After fixing #726 I noticed a randomly occurring failure on GHA with this error: ``` /home/plumed/plumed2/regtest/basic/rt-mpi6c/tmp FAILURE: exit code 134 terminate called after throwing an instance of 'PLMD::Plumed::ExceptionError' what(): +++...

This is to report on failures using NVIDIA compiler. - As it was noticed already (#524) there's a problem with PBC. I reported this to NVIDIA, they will fix it....

Optionally removing replica suffix

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Since GROMACS 2019 the option `-multi` is gone, and one is forced to use `-multidir`. This makes the whole replica suffix stuff largely useless. I would not remove it (since...

Might be useful if additional cpp file includes header only libraries. See [this discussion](https://github.com/plumed-nest/plumed-nest/issues/65). @tonigi

Cleanup cmd() strings

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I would like to clean up a bit the interpreted for the cmd strings. 1. Simplify the addition of new cmd strings - perhaps the word_map can be generated automatically...