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firedrakeproject / asQ

A library for implementing ParaDIAG timestepping algorithms using Firedrake

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Tests for the all-at-once preconditioners

JHopeCollins opened this issue · comments

commented
  • JacobiPC: check that you get a decent residual drop after Nt iterations.
  • CirculantPC: check that you get close to the alpha/(1-alpha) convergence rate for linear systems.
  • SliceJacobiPC: check that it always gets the same results with JacobiPC and check it gets the same results as CirculantPC if the slice is the entire timeseries.