Dear PETSc team,
I am using a newtonls snes solver. I know that form residual is invoked
at several locations of the algorithm, first evaluated for the rhs of
ksp solver, then several times for obtaining the optimal step of line
search.
In my problem I have a global variable that is updated every time when
form residual is called, which is not desired in the context of
netwonls. Basically, it should be only evaluated for the purpose of rhs
of ksp (and not in line search). So is it possible to know in which
context my form residual is used for? Then I can just skip my line of
updating global variable depending on this condition. If not possible,
could you suggest a workaround? Or do I need to design a customized line
search routine?
Thanks for your help.
Best regards,
Yi
-------------------------------------------------
Stay up to date and follow us on LinkedIn, Twitter and YouTube.
Max-Planck-Institut für Eisenforschung GmbH
Max-Planck-Straße 1
D-40237 Düsseldorf
Handelsregister B 2533
Amtsgericht Düsseldorf
Geschäftsführung
Prof. Dr. Gerhard Dehm
Prof. Dr. Jörg Neugebauer
Prof. Dr. Dierk Raabe
Dr. Kai de Weldige
Ust.-Id.-Nr.: DE 11 93 58 514
Steuernummer: 105 5891 1000
Please consider that invitations and e-mails of our institute are
only valid if they end with …@mpie.de.
If you are not sure of the validity please contact [email protected]
Bitte beachten Sie, dass Einladungen zu Veranstaltungen und E-Mails
aus unserem Haus nur mit der Endung …@mpie.de gültig sind.
In Zweifelsfällen wenden Sie sich bitte an [email protected]
-------------------------------------------------
