Harshad Sahasrabudhe <[email protected]> writes: > Hi, > > I want to implement a Predictor-Corrector algorithm for solving a coupled > Schrödinger-Poisson system using SNES. I can calculate the next step using > my predictor algorithm and don't want PETSc to calculate the next step. I > only need PETSc to check for convergence. What is the best way to implement > this?
Probably SNESLineSearchRegister your implementation. The Newton solve gives a correction and you can follow it with anything you want.
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