Maximum number of linear iterations reached

Solution Number: 1193
Title: Maximum number of linear iterations reached
Platform: All Platforms
Applies to: COMSOL Multiphysics
Versions: All versions
Categories: Error Messages

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.


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