[petsc-users] petsc4py - Change default line search for SNES Newton Line Search

Lisandro Dalcin dalcinl at gmail.com
Tue Jul 12 09:06:15 CDT 2016


On 12 July 2016 at 16:37, Hensgens, Marius
<marius.hensgens at rwth-aachen.de> wrote:
> how can I change the used line search method after setting the SNES Type to
> 'newtonls' using petsc4py ?
>

Right now, you can either use the command line or programatically
insert an option in the database

opts = PETSc.Options()
opts['snes_linesearch_type'] = lstype
...
snes.setFromOptions()

> In the official PETSc documentation there is a function called
> SNESLineSearchSetType, however in petsc4py I can't find an equivalent
> function.

The SNESLineSearch type and related routines are not wrapped yet.


-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Extreme Computing Research Center (ECRC)
King Abdullah University of Science and Technology (KAUST)
http://ecrc.kaust.edu.sa/

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