"Sun, Hui" <[email protected]> writes: > How do I parallelize it? I mean, I use DMCreateMatrix to create A00, > and I can parallelize the rows of A01 and A10^t by the same DM > object. But I don't know how to parallelize the columns of A01 and > A10^t.
You create the matrix. We don't have DM support for non-square matrices, but you can get their sizes. You might consider using DMComposite or a multi-field DM when creating the matrix. It's also pretty likely that you don't want to actually form the Schur complement (usually dense), and instead would be better off approximating it and solving with it iteratively.
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