Is it possible to provide an initial solution guess to an iterative solver in a steady-state equation? I’ve tried using “Output File” and “Restart File” on VectorHelmholtzWaveguide model. “Output File” is generated and then read in without errors when supplied as “Restart File”, but it seems to have no effect on the solver iterations.
While for this simple example it makes little difference, I have a more complex VectorHelmholtz problem that takes many iterations to converge. So I want to give an initial guess, derived for example from solution of a simplified problem.
Relevant code: I’ve added the following lines in the Simulation section of waveguide.sif. Am I doing it wrong? Any help would be greatly appreciated.
Code: Select all
Output File = "res1.result"
Output Global Variables = True
Binary Output = False
Restart File = "res1.result"
Restart Position = 0