* Especially create the latitudes symmetrically from pole to pole.

* Bull X MPI incorrectly creates the shared file pointer in many cases.
* This fix alleviates the problem but cannot fully restore sane behaviour.

* Versions 4.1 to 4.3.2 of netcdf do not provide programmatically useful
  pre-processor predicate if the pnetcdf layer is available and report
  success when the nc_create call actually failed.

* For statically decomposed streams, the xmaps can be precomputed under the
  assumption that all elements are written.

* This way an even tighter space bound can be found for float writes.

* The server buffer creation does not involve the clients,
  hence it is better to call MPI_Win_create early.

* The approach with cpp relies on GNU tools, i.e. is not portable.

* In a follow-up step it will also be used for source lists.

* random is subject to arbitrary disturbances because libraries like to
  assume it can be used indiscriminately.

* The structure is more generally useful than only server-side
  destination index lists.