> After the mesh is partitioning, if the numbers of the points at
> processors are not equal, is it ok for libmesh? thanks a lot.

Specifically, libMesh partitions the elements and then the node partitioning
is basically defined in terms of the element partitioning.  In the best case
scenario the number of elements owned each processor will be the same, and
even then the number of nodes owned by each processor is likely not the
same. 

More likely, for a lot of reasons, the number of elements owned by each
processor will not be the same, but should be similar.  And there is no
reason to expect that each processor will own the same number of nodes.

-Ben


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