John Mousel <[email protected]> writes: > I call it because the KSPs get passed to an AxbSolver routine that sets up > the linear solve. That routine calls KSPSetOperators. Does it cause a > problem in doing that if I want to reuse the PC?
If you use SAME_PRECONDITIONER, then the same thing will be used, but if you know when to use SAME_PRECONDITIONER, you could instead just not call KSPSetOperators. At some point, recycling methods might reuse some information when the matrix has not changed, though our usual mode of operation is to absorb that information into the preconditioner.
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