Anush Krishnan <[email protected]> writes: > Hi all, > > I have two 2D distributed arrays U and V, and a vector created from the > DMComposite of both. If I know just the Natural Ordering index of an > element of U or V, can I calculate the PETSc Ordering index of that > element in the composite vector?
That direction is fragile and/or expensive unless it is within the subdomain overlap/ghost region. Where are you getting this index from?
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