About IRKSOME

[night1412]

Description

I’m using the IRKSOME package within Firedrake to solve time-dependent PDEs with implicit timestepping. At each timestep, I need to reuse the solution from previous steps to improve the KSP solver’s convergence (e.g., as an initial guess or for constructing preconditioners).

Question

What is the recommended way to pass historical solutions to the KSP solver context in IRKSOME?

[connorjward]

This should be asked directly to the Irksome developers: https://github.com/firedrakeproject/Irksome/discussions

[night1412]

OK. Thanks for the help!