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Hi all,
I'm a newbie with PetSc so sorry if it is a well
known question (I've seen nothing in the mailing archive).
I have a linear system wich is qui ill
conditionned. So whatever solver and preconditionner I use convergence is a bit
chaotic
and it use to quit the solver when the maximum
number of iteration has been reached with the last residual.
Last residual that is never the best residual found
during the whole convergence path. Is there a way to get this best solution from
PetSc ?
Thanks,
Etienne Perchat
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