Re: [petsc-users] "snes_type test" is gone?

2018-06-04 Thread Kong, Fande
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 wrote: > > > > On Jun 4, 2018, at 4:59 PM, Zhang, Hong wrote: > > > > -snes_type has been removed. We can just use -snes_test_jacobian > instead. Note

Re: [petsc-users] "snes_type test" is gone?

2018-06-04 Thread Zhang, Hong
> On Jun 4, 2018, at 4:59 PM, Zhang, Hong 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

Re: [petsc-users] "snes_type test" is gone?

2018-06-04 Thread Zhang, Hong
-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. Hong (Mr.) > On Jun 4, 2018, at 3:27 PM, Kong, Fande wrote: > > Hi PETSc Team, > > I was wondering if "snes_type test" has been gone? Quite a few MOOSE

[petsc-users] MKL Pardiso Solver Execution Step control

2018-06-04 Thread Matthew Overholt
Hello, I am using KSP in KSPPREONLY mode to do a direct solve on an A*x = b system, with solver algorithms MUMPS, CPardiso and Pardiso. For Pardiso, is it possible to control the solver execution step (denoted "phase" in Intel's docs)? I would like to be able to control when it refactors as one

Re: [petsc-users] "snes_type test" is gone?

2018-06-04 Thread Alexander Lindsay
Looks like `-snes_test_jacobian` and `-snes_test_jacobian_view` are the options to use... On Mon, Jun 4, 2018 at 2:27 PM, Kong, Fande 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

[petsc-users] "snes_type test" is gone?

2018-06-04 Thread Kong, Fande
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,

Re: [petsc-users] Poor weak scaling when solving successive linearsystems

2018-06-04 Thread Junchao Zhang
Miachael, I can compile and run you test. I am now profiling it. Thanks. --Junchao Zhang On Mon, Jun 4, 2018 at 11:59 AM, Michael Becker < michael.bec...@physik.uni-giessen.de> wrote: > Hello again, > this took me longer than I anticipated, but here we go. > I did reruns of the cases where

Re: [petsc-users] Poor weak scaling when solving successive linearsystems

2018-06-04 Thread Michael Becker
Hello again, this took me longer than I anticipated, but here we go. I did reruns of the cases where only half the processes per node were used (without -log_sync): 125 procs,1st   125 procs,2nd  1000 procs,1st  1000 procs,2nd    Max    Ratio Max   

Re: [petsc-users] MAT_NEW_NONZERO_LOCATIONS working?

2018-06-04 Thread Hong
On Mon, Jun 4, 2018 at 1:03 PM, Jean-Yves LExcellent < jean-yves.l.excell...@ens-lyon.fr> wrote: > > Thanks for the details of your needs. > > For the first application, the sparse RHS feature with distributed > solution should effectively be fine. > I'll add parallel support of this feature in

Re: [petsc-users] MatPtAP

2018-06-04 Thread Samuel Lanthaler
Ok, I now realize that I had implemented the boundary conditions in an unnecessarily complicated way... As you pointed out, I can just manipulate individual matrix rows to enforce the BC's. In that way, I never have to call MatPtAP, or do any expensive operations. Probably that's what is

Re: [petsc-users] MAT_NEW_NONZERO_LOCATIONS working?

2018-06-04 Thread Jean-Yves LExcellent
Thanks for the details of your needs. For the first application, the sparse RHS feature with distributed solution should effectively be fine. For the second one, a future distributed RHS feature (not currently available in MUMPS) might help if the centralized sparse RHS is too memory

Re: [petsc-users] downloading hypre

2018-06-04 Thread Matthew Knepley
On Mon, Jun 4, 2018 at 3:50 AM, Lukas van de Wiel < lukas.drinkt.t...@gmail.com> wrote: > Hi Matt, > > Whoa, thanks for the invite, but that is a bit too short of a notice for > the circumstances. > I will gladly come to the next one. And if it is far away, I have good > excuse to prepend a

Re: [petsc-users] downloading hypre

2018-06-04 Thread Lukas van de Wiel
Hi Matt, Whoa, thanks for the invite, but that is a bit too short of a notice for the circumstances. I will gladly come to the next one. And if it is far away, I have good excuse to prepend a holiday to it. :-) WIll it be in the beginning of June in 2019 as well? Cheers Lukas On Fri, Jun 1,