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Support for variable number of walkers in WepyHDF5 #34
Description
There is some basic considerations towards this, but a more thorough audit needs to be done to make sure that this is supported in a first class way.
Currently, if the number of walkers increases a new "trajectory" is added and in the trajectory group metadata a field is added noting which cycle it was created.
Activity
salotz-sitx commentedon Sep 15, 2021
The first approach was to hack this into the "sparse fields" feature.
Options to make all fields sparse for variable number simulations was added (PR forthcoming).
This mostly works but is broken wrt mandatory "fields" i.e.
weights. The proper solution then is support a dataset under each trajectory of_cycle_idxsand then_sparse_idxsfor each field is relative to that. This allows for them both to coexist, which was a problem with the sparse fields for variable number of walkers hack.