I put in stuff to propagate the nullspace if you use DM.
Matt
On Thu, May 23, 2024 at 11:04 PM Barry Smith wrote:
> On May 23, 2024, at 3: 48 PM, Stefano Zampini com> wrote: the null space of the Schur complement is the restriction of
> the original null space. I guess if fieldsplit is
em (the poor
> nonlinear solver convergence being caused by missing Jacobian elements
> representing interaction between the sources)?
>
> - Adrian
> On 20/05/24 12:41 pm, Matthew Knepley wrote:
>
> On Sun, May 19, 2024 at 8:25 PM Barry Smith wrote:
>
>> You can call MatS
On Sun, May 19, 2024 at 8:25 PM Barry Smith wrote:
> You can call MatSetOption(mat,MAT_NEW_NONZERO_LOCATION_ERR) then insert
> the new values. If it is just a handful of new insertions the extra time
> should be small. Making a copy of the matrix won't give you a new matrix
> that is any faster
code in the
> GitHub, I would appreciate it if you could have a look at it and guide me
> how to fix it.
> I believe the problem is in the memory of LHS and res_vector because they
> are new vectors I created.
>
> Thank you in advance for your help, I really appreciate it
>
>
On Tue, May 14, 2024 at 9:07 AM Matthew Knepley wrote:
> On Mon, May 13, 2024 at 10:04 PM Adrian Croucher <
> a.crouc...@auckland.ac.nz> wrote:
>
>> On 14/05/24 1:44 pm, Matthew Knepley wrote:
>>
>> I wish GMsh was clearer about what is optional:
>> https
On Mon, May 13, 2024 at 10:04 PM Adrian Croucher
wrote:
> On 14/05/24 1:44 pm, Matthew Knepley wrote:
>
> I wish GMsh was clearer about what is optional:
> https://urldefense.us/v3/__https://gmsh.info/doc/texinfo/gmsh.html*MSH-file-format__;Iw!!
On Tue, May 14, 2024 at 12:14 AM Matteo Semplice <
matteo.sempl...@uninsubria.it> wrote:
> Dear petsc-users, I am playing with DMPlexGetCellCoordinates and observing
> that it returns correct periodic coordinates for cells, but not for faces.
> More precisely, adding
On Mon, May 13, 2024 at 9:33 PM Adrian Croucher
wrote:
> hi, We often create meshes in GMSH format using the meshio library. This
> works OK if we stick to GMSH file format 2. 2. If we use GMSH file format
> 4. 1, DMPlex can't read them because it expects the "Entities" section to
> be present:
On Mon, May 13, 2024 at 1:40 PM Sreeram R Venkat
wrote:
> I have a MatShell object that computes matrix-vector products of a dense
> symmetric matrix of size NxN. The MatShell does not actually form the dense
> matrix, so it is never in memory/storage. For my application, N ranges from
> 1e4 to
On Sun, May 12, 2024 at 10:42 PM Adrian Croucher
wrote:
> hi Matt,
> On 11/05/24 4:12 am, Matthew Knepley wrote:
>
> Thanks. I tried it out and the error below was raised, looks like it's
>> when it tries to destroy the viewer. It still runs ok when
>> DMGetOutputSeque
ide the nonzero pattern of the sparse Jacobian; that is
> what residual components f_i are coupled to what input variables in the
> array x_i. This information comes from your PDE and discretization and
> appears implicitly in your residual function.
>
> Barry
>
>
> I hope
On Fri, May 10, 2024 at 1:01 AM Adrian Croucher
wrote:
> hi Matt,
> On 10/05/24 12:15 am, Matthew Knepley wrote:
>
> I just tried to test it, but there doesn't seem to be a Fortran interface
>> for DMGetOutputSequenceLength().
>>
> Pushed.
>
> Thanks. I
On Wed, May 8, 2024 at 10:46 PM Adrian Croucher
wrote:
> hi Matt,
> On 9/05/24 3:00 am, Matthew Knepley wrote:
>
> Sorry about the delay. I had lost track of this. Can you look at branch
>
> knepley/feature-hdf5-seq-len
>
> I have not made a test yet, but if this wo
eature-hdf5-seq-len
I have not made a test yet, but if this works for you, I will make a test
and merge it in.
Thanks!
Matt
> Regards, Adrian
> On 11/10/21 2:08 pm, Adrian Croucher wrote:
>
> On 10/11/21 11:59 AM, Matthew Knepley wrote:
>
> On Sun, Oct 10, 2021 at
ow why it
would not work for your problem if you don't use it.
Thanks,
Matt
>
> Please find the attached file contains a draft of my code
>
> Thank you in advance for your time and help.
>
>
> Best regards,
>
> Sawsan
>
> ----------
hy not first permute back to the Poisson matrix? Then it
would be trivial.
Thanks,
Matt
> I'm not sure what you mean by "permuted randomly." A random permutation
> of the matrix can kill performance but not math.
>
> Mark
>
>
> On Tue, May 7, 2024 at 8:03 AM Matt
On Tue, May 7, 2024 at 5:12 AM Pierre Jolivet wrote:
> On 7 May 2024, at 9: 10 AM, Marco Seiz wrote: Thanks
> for the quick response! On 07. 05. 24 14: 24, Pierre Jolivet wrote: On 7
> May 2024, at 7: 04 AM, Marco Seiz wrote: This
> Message Is From an External
> ZjQcmQRYFpfptBannerStart
> This
On Mon, May 6, 2024 at 1:14 PM Mark Adams wrote:
> But that will hardwire disabling -options_left. right?
>
True. Your suggestion would only filter out those two in particular.
Thanks,
Matt
> On Mon, May 6, 2024 at 11:30 AM Matthew Knepley wrote:
>
>> On Mon, May
On Mon, May 6, 2024 at 11:15 AM Pierre Jolivet wrote:
> On 6 May 2024, at 3:14 PM, Matthew Knepley wrote:
>
> This Message Is From an External Sender
> This message came from outside your organization.
> On Mon, May 6, 2024 at 1:04 AM Adrian Croucher
> wrote:
>
&g
On Mon, May 6, 2024 at 1:04 AM Adrian Croucher
wrote:
> hi, My code has some optional command line arguments -v and -h for output
> of version number and usage help. These are processed using Fortran's
> get_command_argument(). Since updating PETSc to version 3. 21, I get some
> extra warnings
connectivity list.
>
Right, but that means that the connectivity you read in is not in local
numbering. You will have to renumber it, so making a copy is probably
necessary anyway. This is the same sort of processing I do for the parallel
read.
Thanks,
Matt
> ----
On Thu, May 2, 2024 at 12:53 PM Samar Khatiwala <
samar.khatiw...@earth.ox.ac.uk> wrote:
> Hello, I have a couple of questions about createWithArray in petsc4py: 1)
> What is the correct usage for creating a standard MPI Vec with it?
> Something like this seems to work but is it right?: On each
tivity lists.
>
You know the number of cells if you can read connectivity. Do you mean that
the format does not tell you
the number of vertices?
Thanks,
Matt
> --
> *From:* Ferrand, Jesus A.
> *Sent:* Wednesday, May 1, 2024 8:17 PM
> *To:* Matth
On Wed, May 1, 2024 at 3:34 PM Ferrand, Jesus A.
wrote:
> Dear PETSc team: For a project that I'm working on, I need to manually
> build a DMPlex. From studying the source code of the various APIs in which
> the plex is built from some supported file format, I get that the workflow
> is this:
On Fri, Apr 26, 2024 at 7:23 AM Karthikeyan Chockalingam - STFC UKRI via
petsc-users wrote:
> Hello, When PETSc is installed with GPU support, will it run only on GPUs
> or can it be run on CPUs (without GPUs)? Currently, PETSc crashes when run
> on CPUs. Thank you. Best regards, Karthik. --
On Tue, Apr 23, 2024 at 4:00 PM Yongzhong Li
wrote:
> Thanks Barry! Does this mean that the sparse matrix-vector products, which
> actually constitute the majority of the computations in my GMRES routine in
> PETSc, don’t utilize multithreading? Only basic vector operations such as
> VecAXPY and
it. It would make a fantastic
contribution to PETSc.
Thanks,
Matt
> Thanks,
> Miguel
>
> On 21 Apr 2024, at 14:53, Matthew Knepley wrote:
>
> On Thu, Apr 18, 2024 at 8:23 AM MIGUEL MOLINOS PEREZ
> wrote:
>
>> Dear all, I am working on the implementation of period
On Thu, Apr 18, 2024 at 8:23 AM MIGUEL MOLINOS PEREZ wrote:
> Dear all, I am working on the implementation of periodic bcc using a
> discretisation (PIC-style). I am working with a test case which consists on
> solving the advection of a set of particles inside of a box (DMDA mesh)
> with
On Fri, Apr 19, 2024 at 3:52 PM Ashish Patel wrote:
> Hi Jed, VmRss is on a higher side and seems to match what
> PetscMallocGetMaximumUsage is reporting. HugetlbPages was 0 for me. Mark,
> running without the near nullspace also gives similar results. I have
> attached the malloc_view and gamg
Smith
> >>> Sent: Saturday, July 15, 2023 8:36 AM
> >>> To: Ng, Cho-Kuen
> >>> Cc: petsc-users@mcs.anl.gov
> >>> Subject: Re: [petsc-users] Using PETSc GPU backend
> >>>
> >>> Cho,
> >>>
> >>>
On Wed, Apr 10, 2024 at 7:49 AM Khurana, Parv
wrote:
> Hello PETSc users community, Thank you in advance for your help as always.
> I am using BoomerAMG from Hypre via PETSc as a part of preconditioner in my
> software (Nektar++). I am trying to understand the time profiling
> information that
On Wed, Apr 3, 2024 at 2:28 PM Ferrand, Jesus A.
wrote:
> Dear PETSc team: (Hoping to get a hold of Jed and/or Matt for this one)
> (Also, sorry for the mouthful below) I'm developing routines that will
> read/write CGNS files to DMPlex and vice versa. One of the recurring
> challenges is the
re is a different idea
> behind it.
>
Yes, that is right.
Thanks,
Matt
> Thanks.
> Noam
> On Tuesday, March 26th, 2024 at 11:17 PM, Matthew Knepley <
> knep...@gmail.com> wrote:
>
> On Tue, Mar 26, 2024 at 2:23 PM Noam T. via petsc-users <
>
On Mon, Apr 1, 2024 at 1:57 PM Shatanawi, Sawsan Muhammad via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hello everyone, I hope this email finds you well. Is there a way we can
> check how the matrix looks like after setting it. I have tried debugging it
> with gdb- break points- and print
fT7DAXF6-0fOpeWMEOJcrVL5grSHp-QCF8PdvRl51$
>
> Este correo electrónico y, en su caso, cualquier fichero anexo al
> mismo, contiene información de carácter confidencial exclusivamente
> dirigida a su destinatario o destinatarios. Si no es UD. el
> destinatario del mensaje, le rue
On Sun, Mar 31, 2024 at 4:08 PM MIGUEL MOLINOS PEREZ wrote:
> Dear all, I am writing a function which store datasets (Vectors) coming
> from a DMSwarm structure into a hdf5 file. This step is done nicely
> write_function(){ PetscViewerHDF5Open(…) PetscViewerHDF5PushTimestepping(…)
>
On Tue, Mar 26, 2024 at 2:23 PM Noam T. via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hello, I am trying to understand the FE Tabulation data obtained from e. g
> . PetscFEComputeTabulation. Using a 2D mesh with a single triangle, first
> order, with vertices (0,0), (0,1), (1,0) (see msh
On Sat, Mar 23, 2024 at 8:03 AM Gong Yujie
wrote:
> Dear PETSc group, I'm reading the DS part for the discretization start
> from SNES ex17. c which is a demo for solving linear elasticity problem. I
> have two questions for the details. The first question is for the residual
> function. Is the
On Fri, Mar 15, 2024 at 9:55 AM Frank Bramkamp wrote:
> Dear PETSc Team, I am using the latest petsc version 3. 20. 5. I would
> like to create a matrix using MatCreateSeqAIJ To insert values, I use
> MatSetValues. It seems that the Fortran interface/stubs are missing for
> MatsetValues, as the
On Thu, Feb 29, 2024 at 4:22 PM Blondel, Sophie via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> I still get the same error when deactivating GPU-aware MPI. I also tried
> unloading spectrum MPI and using openMPI instead (recompiling everything)
> and I get a segfault in PETSc in that case
On Thu, Feb 29, 2024 at 11:03 AM Blondel, Sophie via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Thank you Junchao, Yes, I am using gpu-aware MPI. Is "-use_gpu_aware_mpi
> 0" a runtime option or a compile option? Best, Sophie From: Junchao Zhang
> Sent: Thursday, February 29, 2024 10: 50 To:
Right now, there is no particle identity.
Thanks,
Matt
> Best,
> Miguel
>
> On Feb 25, 2024, at 6:53 PM, Matthew Knepley wrote:
>
> On Sun, Feb 25, 2024 at 7:21 AM MIGUEL MOLINOS PEREZ
> wrote:
>
>> Dear Matthew,
>>
>> Thank you for answer
the residual equations of my problem (please,
> don’t judge me, publish or perish...)
>
> Many thanks,
> Miguel
>
>
> On Feb 24, 2024, at 4:24 PM, Matthew Knepley wrote:
>
> On Fri, Feb 23, 2024 at 5:14 PM MIGUEL MOLINOS PEREZ
> wrote:
>
>> Dear all, I am s
On Fri, Feb 23, 2024 at 5:14 PM MIGUEL MOLINOS PEREZ wrote:
> Dear all, I am struggling on how to include ghost points in DMSwarm local
> vectors. According to PETSc documentation it seems “straightforward” for a
> DMDA mesh. However, I am not so sure on how to do it for a DMSwarm. In
> fact, if
On Fri, Feb 23, 2024 at 9:54 AM 袁煕 wrote:
> Hello, I cannot fetch right values of a local vector after a second time
> calling DMSetLocalSection. My program runs like call
> PetscSectionSetup(section1,ierr) call
> DMSetLocalSection(dm_mesh,section1,ierr)call
>
On Thu, Dec 8, 2022 at 2:56 PM Barry Smith wrote:
>
>You would use *PETSC_NULL_DM*LABEL but Matt needs to customize the
> PETSc Fortran stub for DMAddField() for you to handle accepting the NULL
> from PETSc.
>
Sorry, I missed this message. The customization is done.
Thanks,
Matt
You are right. I was not clearing the caches when the section was reset.
Stefano ahs fixed this now:
https://urldefense.us/v3/__https://gitlab.com/petsc/petsc/-/merge_requests/7314__;!!G_uCfscf7eWS!ZPkq_k9vdzTZxeW53aWVTIcDgeGnywSm0tGKDJkJqdwgTomfYjw1lsTMyRtAjtruSslcgLIoKGg7IILlBxbJ$
On Mon, Feb 12, 2024 at 7:10 AM Jeremy Theler (External) <
jeremy.theler-...@ansys.com> wrote:
> Hi Barry
>
> > The bug fix for 2 is availabel in
> https://gitlab.com/petsc/petsc/-/merge_requests/7279
>
> Note that our code goes through MatZeroRowsColumns_MPIAIJ() not through
>
On Fri, Feb 9, 2024 at 7:04 AM Jeremy Theler (External) <
jeremy.theler-...@ansys.com> wrote:
> Hi all
>
> Because of a combination of settings, our code passes through this line:
>
>
> https://gitlab.com/petsc/petsc/-/blob/main/src/ksp/pc/impls/fieldsplit/fieldsplit.c?ref_type=heads#L692
>
>
t other bug with coordinates (finger
crossed). We are running the tests now.
Thanks,
Matt
> Thanks, best regards,
> Berend.
>
> p.s. If someone is interested in the code to transform a DMForest to a
> DMPlex of type DM_POLY, I am more than happy to share.
>
> On
On Wed, Feb 7, 2024 at 8:30 AM Mark Adams wrote:
> Wait for Matt to chime in, but I think you will need to start from scratch
> and use
> https://petsc.org/release/manualpages/DMPlex/DMPlexBuildFromCellList
>
Let me restate things to make sure I get it. You want to select a submesh
that retains
On Mon, Feb 5, 2024 at 10:10 AM GUBERNATIS Pierre
wrote:
> Hello,
>
> I would appreciate an advice on this task, if possible.
>
>
>
> So far, we use PETSc to ‘couple’ two computations of the same simulation
> code, in a single MPI run.
>
> I simplify but roughly, we have 2 Cartesian domains on
On Mon, Feb 5, 2024 at 8:48 AM TAY Wee Beng wrote:
> Hi all,
>
> Not in my code, nor in PETSc.
>
I would try this. Of course, it would be best to see where exactly the
overflow is happening.
THanks,
Matt
> On 5/2/2024 8:21 pm, Matthew Knepley wrote:
>
> On Mon, F
On Mon, Feb 5, 2024 at 4:29 AM TAY Wee Beng wrote:
> Hi,
>
> I have a code which uses PETSc and it was working fine. However, I
> haven't used the code for a while and now we've migrated to a new cray
> cluster so the compilers have been updated. I'm using gnu fortran.
>
> When running the code
Can you give us a simple code that is not working for you? My test should
work
src/dm/impls/plex/tests/ex26f90
Thanks,
Matt
On Sat, Feb 3, 2024 at 11:36 AM Barry Smith wrote:
>
> The Fortran "stubs" (subroutines) should be in
>
On Wed, Jan 31, 2024 at 10:10 AM Alain O' Miniussi
wrote:
> Hi,
>
> It is indicated in:
> https://petsc.org/release/manualpages/Sys/PetscInitialize/
> that the init function will call MPI_Init.
>
> What if MPI_Init was already called (as it is the case in my application)
>From the page: "
On Wed, Jan 31, 2024 at 8:21 AM Mark Adams wrote:
> Iterative solvers have to be designed for your particular operator.
> You want to look in your field to see how people solve these problems.
> (eg, zeros on the diagonal will need something like a block solver or maybe
> ILU with a particular
left preconditioning
> using NONE norm type for convergence test
> PC Object: (redistribute_sub_) 1 MPI process
> type: lu
> out-of-place factorization
> tolerance for zero pivot 2.22045e-14
>
> On Sat, Jan 27, 2024 at 10:24 AM Matthew Knepley
View the solver.
Matt
On Sat, Jan 27, 2024 at 9:43 AM Mark Adams wrote:
> I am not getting ksp_rtol 1e-12 into pc_redistribute correctly?
>
>
>
> * Linear redistribute_ solve converged due to CONVERGED_RTOL iterations 1
> 0 KSP Residual norm 2.182384017537e+02 1 KSP Residual norm
>
ith v.
Thanks,
Matt
> Thanks,
> Pantelis
> ------
> *Από:* Matthew Knepley
> *Στάλθηκε:* Τρίτη, 23 Ιανουαρίου 2024 5:21 μμ
> *Προς:* Pantelis Moschopoulos
> *Κοιν.:* Barry Smith ; petsc-users@mcs.anl.gov <
> petsc-users@mcs.anl.gov>
getting
MatLRC to do it.
Thanks,
Matt
> Thanks,
> Pantelis
> --
> *Από:* Matthew Knepley
> *Στάλθηκε:* Τρίτη, 23 Ιανουαρίου 2024 3:20 μμ
> *Προς:* Pantelis Moschopoulos
> *Κοιν.:* Barry Smith ; petsc-users@mcs.anl.gov <
> petsc-users@mcs.anl.gov>
> *
upply the IS using the command PCFieldSplitSetIS, I do not specify
> anything in the matrix set up right?
>
You should just need to specify the rows for each field as an IS.
Thanks,
Matt
> Thanks,
> Pantelis
> ------
> *Από:* Matthew Knepley
> *Σ
te the Field split:
> ufields(3) = [0, 1, 2]
> pfields(1) = [3]
>
> call PCSetType(pc, PCFIELDSPLIT, ierr)
> call PCFieldSplitSetBlockSize(pc, 4,ierr)
> call PCFieldSplitSetFields(pc, "0", 3, ufields, ufields,ierr)
> call PCFieldSplitSetFields(pc, "1"
makes sense. You could call DMLocatePoints(), but maybe
you are doing that.
Thanks,
Matt
> Best, Berend.
>
> On 1/22/24 20:03, Matthew Knepley wrote:
> > On Mon, Jan 22, 2024 at 1:57 PM Berend van Wachem <
> berend.vanwac...@ovgu.de <mailto:berend.vanwac...@ovgu.de
me above, you would have to write both DMs. Are you trying to
avoid this?
Thanks,
Matt
> Thanks,
>
> Berend.
>
> On 1/22/24 18:58, Matthew Knepley wrote:
> > On Mon, Jan 22, 2024 at 10:49 AM Berend van Wachem <
> berend.vanwac...@ovgu.de <mailto:berend.vanwac...
On Mon, Jan 22, 2024 at 10:49 AM Berend van Wachem
wrote:
> Dear Petsc-Team,
>
> Is there a good way to define a unique integer number in each element
> (e.g. a cell) of a DMPlex mesh, which is in the same location,
> regardless of the number of processors or the distribution of the mesh
> over
On Fri, Jan 19, 2024 at 4:25 PM Barry Smith wrote:
>
>Generally fieldsplit is used on problems that have a natural "split" of
> the variables into two or more subsets. For example u0,v0,u1,v1,u2,v2,u3,v4
> This is often indicated in the vectors and matrices with the "blocksize"
> argument, 2
On Thu, Jan 18, 2024 at 4:18 PM Yesypenko, Anna
wrote:
> Hi Matt, Barry,
>
> Apologies for the extra dependency on scipy. I can replicate the error by
> calling setValue (i,j,v) in a loop as well.
> In roughly half of 10 runs, the following script fails because of an error
> in hashmapijv – the
stepping is set.
Thanks,
Matt
> Thanks,
> Mark
>
>
> On Thu, Jan 18, 2024 at 11:26 AM Matthew Knepley
> wrote:
>
>> On Thu, Jan 18, 2024 at 10:08 AM Mark Adams wrote:
>>
>>> I am trying to view a DMSwarm with: -weights_view hdf5:part.h5
>>>
On Thu, Jan 18, 2024 at 10:08 AM Mark Adams wrote:
> I am trying to view a DMSwarm with: -weights_view hdf5:part.h5
>
> Vec f;
> PetscCall(DMSetOutputSequenceNumber(sw, 0, 0.0));
> PetscCall(DMSwarmCreateGlobalVectorFromField(sw, "w_q", ));
>
On Thu, Jan 18, 2024 at 10:05 AM TARDIEU Nicolas
wrote:
> Arrghhh ! Shame on me !
> Sorry for that and thank you for the help Matt.
> I works like a charm now.
>
No problem. I like when I figure it out :)
Thanks,
Matt
> --
> *De :* knep...@gmail.com
>
On Thu, Jan 18, 2024 at 9:46 AM TARDIEU Nicolas
wrote:
> Hi Matt,
> The isovl is in global numbering. I am pasting the output of the script :
>
I see. Is your matrix diagonal? If so, there is no overlap. You need
connections to the other rows in order to have overlapping submatrices.
On Thu, Jan 18, 2024 at 9:04 AM Yesypenko, Anna
wrote:
> Dear Petsc users/developers,
>
> I'm experiencing a bug when using petsc4py with GPU support. It may be my
> mistake in how I set up a AIJCUSPARSE matrix.
> For larger matrices, I sometimes encounter a error in assigning matrix
> values;
On Thu, Jan 18, 2024 at 9:24 AM TARDIEU Nicolas via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Dear PETSc Team,
>
> I am trying to understand how to increase the overlap of a matrix.
> I wrote the attached petsc4py script where I build a simple matrix and
> play with the increaseOverlap
On Thu, Jan 18, 2024 at 2:47 AM 袁煕 wrote:
> Dear PETSc Experts,
>
> My FEM program works well generally, but in some specific cases with
> multiple CPUs are used, it freezes when calling MatAssemblyBegin where
> PMPI_Allreduce is called (see attached file).
>
> After some investigation, I found
On Mon, Jan 15, 2024 at 11:57 AM MIA via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hi,
>
> I am trying to solve a large linear equation, which needs a GPU solver as
> comparison. I install a CUDA-enabled PETSc and petsc4py from sources using
> the release tarball. According to the test
On Fri, Jan 12, 2024 at 5:26 AM Noam T. wrote:
> Great.
>
> Thank you very much for the quick replies.
>
It has now merged to the main branch.
Thanks,
Matt
> Noam
> On Thursday, January 11th, 2024 at 9:34 PM, Matthew Knepley <
> knep...@gmail.com> wrote:
>
/petsc/petsc/-/merge_requests/7178
If you build that branch, you can use -dm_plex_gmsh_use_generic to turn on
those labels.
Thanks,
Matt
> Thanks,
> Noam
> On Thursday, January 11th, 2024 at 6:31 PM, Matthew Knepley <
> knep...@gmail.com> wrote:
>
> On Thu, Jan
> Noam
> On Thursday, January 11th, 2024 at 5:28 PM, Matthew Knepley <
> knep...@gmail.com> wrote:
>
> On Thu, Jan 11, 2024 at 11:18 AM Noam T. via petsc-users <
> petsc-users@mcs.anl.gov> wrote:
>
>> Would it be feasible to have an option (e.g. new flag along t
On Thu, Jan 11, 2024 at 11:18 AM Noam T. via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Would it be feasible to have an option (e.g. new flag along the lines of
> -dm_plex_gmsh_...) that allows the user to access both the default sets
> (Cell / Face / Vertex) together with user-defined
On Thu, Dec 21, 2023 at 6:46 AM Sreeram R Venkat
wrote:
> Ok, I think the error I'm getting has something to do with how the
> multiple solves are being done in succession. I'll try to see if there's
> anything I'm doing wrong there.
>
> One question about the -pc_type lu -ksp_type preonly
ich launches a debugger window, and then 'cont' to
run until the error, and then 'where' to print the stack trace.
Thanks,
Matt
> Thank you again,
>
> Sawsan
> ------
> *From:* Matthew Knepley
> *Sent:* Wednesday, December 20, 2023 6:54 PM
> *T
On Wed, Dec 20, 2023 at 9:49 PM Shatanawi, Sawsan Muhammad via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hello Barry,
>
> Thank you a lot for your help, Now I am getting the attached error message.
>
Do not destroy the PC from KSPGetPC()
THanks,
Matt
> Bests,
> Sawsan
>
On Tue, Dec 19, 2023 at 9:50 PM Shatanawi, Sawsan Muhammad via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hello everyone,
>
> I hope this email finds you well.
>
> My Name is Sawsan Shatanawi, and I am currently working on developing a
> Fortran code for simulating groundwater flow in a 3D
same number of processes on
your own machine under Address Sanitizer with no errors?
Thanks,
Matt
> Thanks again for your help.
>
>
>
> Best regards,
>
>
>
> Joauma
>
>
>
> *De : *Matthew Knepley
> *Date : *mardi, 19 décembre 2023 à 14:3
is connected to that machine, rather than
the library. Do you have access to a second parallel machine?
Thanks,
Matt
> Thanks a lot for your help.
>
>
>
> Best regards,
>
>
>
> Joauma
>
>
>
> *De : *Matthew Knepley
> *Date : *lundi, 18 d
ng under valgrind, or using Address Sanitizer from clang.
Thanks,
Matt
Thanks for your help.
>
>
>
> Best regards,
>
>
>
> Joauma
>
>
>
> *De : *Matthew Knepley
> *Date : *jeudi, 23 novembre 2023 à 15:32
> *À : *Joauma Marichal
> *Cc : *petsc-ma.
On Thu, Dec 14, 2023 at 2:06 PM Fackler, Philip via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> I'm using the following sequence of functions related to the Jacobian
> matrix:
>
> DMDACreate1d(..., );
> DMSetFromOptions(da);
> DMSetUp(da);
> DMSetMatType(da, MATAIJKOKKOS);
>
On Thu, Dec 14, 2023 at 1:27 AM 291--- via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Dear SLEPc Developers,
>
> I a am student from Tongji University. Recently I am trying to write a c++
> program for matrix solving, which requires importing the PETSc library that
> you have developed.
ed, Dec 6, 2023 at 8:18 PM Barry Smith wrote:
>
>>
>>
>> On Dec 6, 2023, at 8:35 PM, Matthew Knepley wrote:
>>
>> On Wed, Dec 6, 2023 at 8:10 PM Barry Smith wrote:
>>
>>>
>>> Depending on the serial library you may not need to split the vector
>&g
e. Second, you can choose a
grid size of R_cutoff for the background grid, and then check neighbors.
This is probably how I would start.
Thanks,
Matt
> Best,
> Miguel
>
> On 13 Dec 2023, at 01:14, Matthew Knepley wrote:
>
>
> On Tue, Dec 12, 2023 at 2:36 PM
h overlapping tag ranges.
That seems counterproductive.
Thanks,
Matt
> Thanks,
> Sharan
>
> *Group - Theory & Simulation*
> *Department of Microstructure Physics & Alloy Design*
>
>
>
> * From: * Matthew Knepley
> * To: * Sharan Roongta
> *
On Tue, Dec 12, 2023 at 5:50 PM Sharan Roongta wrote:
> Hello,
>
> I see discrepancy in the size/value of the 'Face Sets' printed in the
> current release v3.20.2 , and v3.18.6
>
> Attached is the .msh file
>
> -dm_view with v3.18.6
> DM Object: Generated Mesh 1 MPI process
> type: plex
>
On Tue, Dec 12, 2023 at 12:22 PM onur.notonur via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hi,
>
> I hope this email finds you well. I am currently working on importing an
> OpenFOAM PolyMesh into DMPlex, and I've encountered an issue. The PolyMesh
> format includes face owner
On Tue, Dec 12, 2023 at 12:23 PM Brandon Denton via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Good Afternoon,
>
> I am currently working on an Inviscid Navier-Stokes problem and would like
> to apply DM_BC_NATURAL boundary conditions to my domain. Looking through
> the example files on
On Tue, Dec 12, 2023 at 11:27 AM Palmer, Bruce J via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Does documentation for the PETSc fortran interface still exist? I looked
> at the web pages for 3.20 (petsc.org/release) but if you go under the tab
> C/Fortran API, only descriptions for the C
On Mon, Dec 11, 2023 at 4:32 AM Gong Yujie
wrote:
> Dear PETSc developers,
>
> I have a DMPlex DM with 1 field 1dof. I'd like to output a vector with
> block size equals to 3. It seems that there is no response using command
> line option or using some code about PetscViewer.
>
I am not sure
We already merged the fix.
Thanks,
Matt
On Mon, Dec 11, 2023 at 6:00 AM Barry Smith wrote:
>
>I don't fully understand your code and what it is trying to
> demonstrate, but VecGetArrayWrite is Logically Collective. Having
>
> if(rank == 0)
> {
>
On Sun, Dec 10, 2023 at 12:57 PM Matthew Knepley wrote:
> On Sun, Dec 10, 2023 at 12:54 PM Matthew Knepley
> wrote:
>
>> On Sun, Dec 10, 2023 at 2:41 AM Stephan Köhler <
>> stephan.koeh...@math.tu-freiberg.de> wrote:
>>
>>> Dear PETSc/Tao team,
>&
On Sun, Dec 10, 2023 at 12:54 PM Matthew Knepley wrote:
> On Sun, Dec 10, 2023 at 2:41 AM Stephan Köhler <
> stephan.koeh...@math.tu-freiberg.de> wrote:
>
>> Dear PETSc/Tao team,
>>
>> there is a bug in the voector interface: In the function
>> VecNorm, se
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