Completely distributed generation of indices
Description
In this new implementation, the generation of the indices is done in a completely distributed fashion. This paves the way for a completely distributed domain parallelization without the need of storing the global index information on each process. Moreover, the implementation is more flexible in terms of the ordering of the grid points.
News snippet
Completely distributed generation of indices
Checklist
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I have checked that my code follows the Octopus coding standards -
I have added tests for all the new features added in this request.