See, for example, the bottom of src/ts/tutorials/ex26.c that uses
-ts_monitor_solution_vtk 'foo-%03d.vts'
> On Jun 24, 2024, at 8:47 PM, MIGUEL MOLINOS PEREZ wrote:
>
> This Message Is From an External Sender
> This message came from outside your organization.
> Dear all,
>
> I want to
By the way, the hdf5 format works and I have the vtk library installed in PETSc.
Miguel
On Jun 24, 2024, at 5:47 PM, MIGUEL MOLINOS PEREZ wrote:
Dear all,
I want to monitor the results at each iteration of TS using vtk format. To do
so, I add the following lines to my Monitor function:
char
Dear all,
I want to monitor the results at each iteration of TS using vtk format. To do
so, I add the following lines to my Monitor function:
char vts_File_Name[MAXC];
PetscCall(PetscSNPrintf(vts_File_Name, sizeof(vts_File_Name),
"./xi-MgHx-hcp-cube-x5-x5-x5-TS-BE-%i.vtu", step));
PetscCall(TSMo
This is very useful tip, thank you!
Miguel
On Jun 24, 2024, at 2:04 PM, Barry Smith wrote:
SNESSetOptionsPrefix
Note you can uses SNESSetOptionsPrefix(snes,"myprefix_") to attach a prefix
for the one dimensional solves and then set options for the one dimensional
problems with
-myprefix_snes_type etc Now you can set different options for the different
types of snes in your code
> On Jun 24, 2024, a
Thanks Barry, that was the problem!
Thank you,
Miguel
On Jun 24, 2024, at 12:56 PM, Barry Smith wrote:
The error is coming from the parallel SNES used by TS TSTheta_SNESSolve()
not your small SNES solver but TSTheta_SNESSolve()
Process 7 uses [7]PETSC ERROR: #4 SNESLineSearchApply_CP(
The error is coming from the parallel SNES used by TS TSTheta_SNESSolve()
not your small SNES solver but TSTheta_SNESSolve()
Process 7 uses [7]PETSC ERROR: #4 SNESLineSearchApply_CP() while the rest
uses _BT(). I think this causes the problem since they are different algorithms
using d
On Mon, Jun 24, 2024 at 2:50 PM MIGUEL MOLINOS PEREZ wrote:
> Dear all, I am trying to assemble a matrix A with coefficients which I
> need to assemble the RHS (F) and its Jacobian (J) in a TS type of problem.
> Determining each coefficient of A involves the resolution of a small
> non-linear pro
Dear all,
I am trying to assemble a matrix A with coefficients which I need to assemble
the RHS (F) and its Jacobian (J) in a TS type of problem.
Determining each coefficient of A involves the resolution of a small non-linear
problem (1 dof) using the serial version of SNES. By the way, the mat
Let me run some examples on our end to see whether the code calls expected
functions.
--Junchao Zhang
On Mon, Jun 24, 2024 at 10:46 AM Matthew Knepley wrote:
> On Mon, Jun 24, 2024 at 11: 21 AM Yongzhong Li utoronto. ca> wrote: Thank you Pierre for your information. Do we have a
> conclusion
Probably best if you can restart this build using a fresh tarball - and see if the problem persists Satish On Mon, 24 Jun 2024, Barry Smith wrote: > > Do > > ls /cygdrive/e/Major/Codes/libraries/PETSc/petsc-3. 21. 2/lib/petsc/conf/
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Do
ls /cygdrive/e/Major/Codes/libraries/PETSc/petsc-3.21.2/lib/petsc/conf/
> On Jun 23, 2024, at 8:27 AM, Gang Li wrote:
>
> This Message Is From an External Sender
> This message came from outside your organization.
> Hi,
>
> I have configured the PETSc under Cygwin by:
>
> cygpath -
On Mon, Jun 24, 2024 at 11:21 AM Yongzhong Li
wrote:
> Thank you Pierre for your information. Do we have a conclusion for my
> original question about the parallelization efficiency for different stages
> of KSP Solve? Do we need to do more testing to figure out the issues? Thank
> you, Yongzhong
On Mon, Jun 24, 2024 at 11:38 AM Samar Khatiwala <
samar.khatiw...@earth.ox.ac.uk> wrote:
> Hi Matt,
>
> This would be for SNES and KSP. In many of my applications it would be too
> expensive to regenerate the Krylov space, which would also be problematic
> for Newton as I often do matrix-free cal
On Mon, Jun 24, 2024 at 10:29 AM Zou, Ling wrote:
> This is the website I normally refer to
>
> https://urldefense.us/v3/__https://openmodelica.org/doc/OpenModelicaUsersGuide/latest/solving.html__;!!G_uCfscf7eWS!atB8LuQrlGQnbi8lXYaGJKrUHYTfhXYVS8-QcBlSPWc_cjEPT8rDhboXFr08Hx6cSDhSTlwO2WEXOpoY6C5F$
Hi Matt,
This would be for SNES and KSP. In many of my applications it would be too
expensive to regenerate the Krylov space, which would also be problematic for
Newton as I often do matrix-free calculations.
I know how complex the underlying data structures are for these objects and
entirely
Thank you Pierre for your information. Do we have a conclusion for my original
question about the parallelization efficiency for different stages of KSP
Solve? Do we need to do more testing to figure out the issues?
Thank you,
Yongzhong
From: Pierre Jolivet
Date: Sunday, June 23, 2024 at 12:41
This is the website I normally refer to
https://urldefense.us/v3/__https://openmodelica.org/doc/OpenModelicaUsersGuide/latest/solving.html__;!!G_uCfscf7eWS!ZZZIEo4PTP8K3Wn8r3Qk0Zy1YJWCVZtiUVvdSq4KnaeMp3VLcrJ3eQOZocmlvn8MCCGcUyzd0niXGJqTtg4$
Looks like DASSL is the default solver.
PS: I was playi
On Mon, Jun 24, 2024 at 4:24 AM Samar Khatiwala <
samar.khatiw...@earth.ox.ac.uk> wrote:
> Hi, Sorry to hijack this thread but I just want to add that this is a more
> general problem that I constantly face with PETSc. Not being able to
> checkpoint the complete state of a solver instance and rest
On Sun, Jun 23, 2024 at 5:04 PM Zou, Ling via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hi all, I am just curious … any effort trying to include PETSc as
> Modelica’s solution option?
>
> (Modelica forum or email list seem to be quite dead so asking here.)
>
I had not heard of it before. I
Hi,
Sorry to hijack this thread but I just want to add that this is a more general
problem that I constantly face with PETSc. Not being able to checkpoint the
complete state of a solver instance and restart a computation (at least not
easily) has long been the biggest missing feature in PETSc f
Unfortunately there is no support for this. If you requested several eigenvalues and the solver has converged some of them already, then it would be possible to stop the run, save the eigenvectors and rerun with the eigenvectors passed via
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