Platform: All Platforms Applies to: COMSOL Multiphysics® Versions: All versions

Problem Description

An error "Maximum number of linear iterations reached" occurs.


If you get this error, the iterative linear system solver did not converge due to a bad initial guess or a bad preconditioner. To avoid the error, increase the limit on the number of linear iterations or use a better preconditioner. If possible, use a direct linear system solver instead.