Thank you Lisandro, that seems to work perfectly for what we want! On Sat, Jun 30, 2018 at 4:28 AM, Lisandro Dalcin <dalc...@gmail.com> wrote:
> ./example.exe -snes_test_jacobian -snes_type ksponly -ksp_type preonly > -pc_type none -snes_convergence_test skip > On Sat, 30 Jun 2018 at 01:06, Alexander Lindsay > <alexlindsay...@gmail.com> wrote: > > > > Is there a way to mimic the behavior of `-snes_type test` with new > PETSc? E.g. don't attempt to perform any solves? They're stupid but we have > a bunch of tests in MOOSE that are set-up only to test the Jacobian, and > any attempts to actually solve the system are disastrous. I can hack around > this by doing things like setting the convergence reason to > `SNES_CONVERGED_ITS` and similarly for ksp, making sure I use `-pc_type > gamg` since there are missing Jacobian diagonal entries, etc. but this > doesn't seem ideal. > > > > Alex > > > > On Mon, Jun 4, 2018 at 4:26 PM, Kong, Fande <fande.k...@inl.gov> wrote: > >> > >> Thanks, Hong, > >> > >> I see. It is better if "-snes_type test" did not exist at the first > place. > >> > >> > >> Fande, > >> > >> On Mon, Jun 4, 2018 at 4:01 PM, Zhang, Hong <hongzh...@anl.gov> wrote: > >>> > >>> > >>> > >>> > On Jun 4, 2018, at 4:59 PM, Zhang, Hong <hongzh...@anl.gov> wrote: > >>> > > >>> > -snes_type has been removed. We can just use -snes_test_jacobian > instead. Note that the test is done every time the Jacobian is computed. > >>> > >>> It was meant to be "-snes_type test". > >>> > >>> > Hong (Mr.) > >>> > > >>> >> On Jun 4, 2018, at 3:27 PM, Kong, Fande <fande.k...@inl.gov> wrote: > >>> >> > >>> >> Hi PETSc Team, > >>> >> > >>> >> I was wondering if "snes_type test" has been gone? Quite a few > MOOSE users use this option to test their Jacobian matrices. > >>> >> > >>> >> If it is gone, any reason? > >>> >> > >>> >> Fande, > >>> > > >>> > >> > > > > > -- > 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/ > > 4700 King Abdullah University of Science and Technology > al-Khawarizmi Bldg (Bldg 1), Office # 0109 > Thuwal 23955-6900, Kingdom of Saudi Arabia > http://www.kaust.edu.sa > > Office Phone: +966 12 808-0459 >