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eh

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I hav the following error when I compute? what to do?
Failed to find a solution.
Very ill-conditioned preconditioner.
The relative residual is more than 1000 times larger than the relative tolerance.
Returned solution has not converged.

1 Reply Last Post Jun 20, 2012, 3:38 p.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago Jun 20, 2012, 3:38 p.m. EDT
Hi

have you chekecd the COMSOL KB ? (knowledge base) and the previous threads ?

there are a few possibilities, often a too coarse mesh, but it depends also on the model & physics set-up

--
Good luck
Ivar
Hi have you chekecd the COMSOL KB ? (knowledge base) and the previous threads ? there are a few possibilities, often a too coarse mesh, but it depends also on the model & physics set-up -- Good luck Ivar

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