On 8/22/19 11:58 PM, Phạm Ngọc Kiên wrote:
>
> I have a question for parallel::distributed::Triangulation
> When 2 cells share 1 edge, but they are living in 2 different MPI processes,
> how can I choose only 1 cell containing the common edge from them.
Is your goal to make sure that only one of the two processors does some work
on these edges? If that's the case, then you need a "tie breaker" -- for
example, if the subdomain id of a locally owned cell is lower than the
subdomain of a neighboring ghost cell, then the current processor does the
work. If the locally owned cell's subdomain id is larger, then the neighboring
processor is in charge of the edge.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
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