[petsc-users] (no subject)

[ztdep at yahoo.com.cn]

    I am writting a parallel unstructured FVM solver for fluid flow problem, but i met some problems when i compute the gradient of a variable using Gauss's theorem.
    As we know,we need the values of a variable at all its neighboring cells, but if one of my neighbouring cell is not in the local processor, how to get it.

 Could you please give me some advices.
Regards
Your Sincerely
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