[petsc-users] Determining maximum number of columns in sparse matrix

[Alexander Lindsay]

We sometimes overallocate our sparsity pattern. Matrix assembly will
squeeze out allocations that we never added into/set. Is there a convenient
way to determine the size of the densest row post-assembly? I know that we
could iterate over rows and call `MatGetRow` and figure it out that way.
But I'm wondering if there is a better way?

Alex
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