[petsc-users] matrix reordering

[Mohammad Mirzadeh]

Hi guys,

Quick question. *After* the matrix is setup, is it possible to ask PETSc to
renumber the nodes internally in the KSPSolve phase to minimize
communications for MatMul inside the solver? Can I use the MatPartitioning
object for this or is that only intended to partition the mesh as a
pre-processing step?

Thanks
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