[petsc-dev] Regression bug in Merge branch 'knepley/feature-hybrid-mass' into 'main'

[Matthew Knepley]

Thanks! I guess none of my examples use DMGetMatrix(). They get the
Jacobian from the solver, which must just call preallocate.

  Matt

On Thu, Apr 20, 2023 at 3:33 PM Blaise Bourdin <bourdin at mcmaster.ca> wrote:

> Actually that was an easy fix… see MR !6352
> <https://gitlab.com/petsc/petsc/-/merge_requests/6352>
>
>    -
>    <https://gitlab.com/petsc/petsc/-/merge_requests/6352>
>
>
> On Apr 20, 2023, at 9:18 PM, Blaise Bourdin <bourdin at mcmaster.ca> wrote:
>
> Hi,
>
> I just noticed that b6b5caf99979f50a7774afdccea5ca5661fc1203 Merge branch
> 'knepley/feature-hybrid-mass' into ‘main’ seems to have introduced a bug
>
> See the attached example (a very simple update of
> src/dm/impls/plex/tests/ex98.c)
> When calling DMGetMatrix, I get the following error:
> [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> [0]PETSC ERROR: Object is in wrong state
> [0]PETSC ERROR: Need to call DMCreateDS() before calling DMGetDS()
> [0]PETSC ERROR: WARNING! There are option(s) set that were not used! Could
> be the program crashed before they were used or a spelling mistake, etc!
> [0]PETSC ERROR:   Option left: name:-dm_mat_view (no value) source:
> command line
> [0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting.
> [0]PETSC ERROR: Petsc Development GIT revision: v3.18.5-1161-gb6b5caf9997
> GIT Date: 2023-03-27 14:14:19 +0000
> [0]PETSC ERROR: ./ex98 on a ventura-gcc12.2-arm64-g named sibookpro.home
> by blaise Thu Apr 20 21:14:40 2023
> [0]PETSC ERROR: Configure options
> --CFLAGS="-Wimplicit-function-declaration -Wunused -Wuninitialized"
> --FFLAGS="-ffree-line-length-none -fallow-argument-mismatch -Wunused
> -Wuninitialized" --download-exodusii=1 --download-hdf5=1
> --download-netcdf=1 --download-ml=1 --download-pnetcdf=1 --download-zlib=1
> --with-debugging=1 --with-exodusii-fortran-bindings
> --with-shared-libraries=1 --with-x11=1
> [0]PETSC ERROR: #1 DMGetDS() at
> /opt/HPC/petsc-main/src/dm/interface/dm.c:5419
> [0]PETSC ERROR: #2 DMPlexPreallocateOperator() at
> /opt/HPC/petsc-main/src/dm/impls/plex/plexpreallocate.c:710
> [0]PETSC ERROR: #3 DMCreateMatrix_Plex() at
> /opt/HPC/petsc-main/src/dm/impls/plex/plex.c:2662
> [0]PETSC ERROR: #4 DMCreateMatrix() at
> /opt/HPC/petsc-main/src/dm/interface/dm.c:1476
> [0]PETSC ERROR: #5 main() at ex98.c:92
> [0]PETSC ERROR: PETSc Option Table entries:
> [0]PETSC ERROR: -dm_mat_view (source: command line)
> [0]PETSC ERROR: -i
> /Users/blaise/Development/mef90/mef90-dmplex/TestMeshes/SquareFaceSet.msh
> (source: command line)
> [0]PETSC ERROR: ----------------End of Error Message -------send entire
> error message to petsc-maint at mcs.anl.gov----------
> Abort(73) on node 0 (rank 0 in comm 16): application called
> MPI_Abort(MPI_COMM_SELF, 73) - process 0
>
>
> Do I now need to use DS in order to use duplex and sections?
>
> Regards,
> Blaise
>
>
> —
> Canada Research Chair in Mathematical and Computational Aspects of Solid
> Mechanics (Tier 1)
> Professor, Department of Mathematics & Statistics
> Hamilton Hall room 409A, McMaster University
> 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
> https://www.math.mcmaster.ca/bourdin | +1 (905) 525 9140 ext. 27243
>
> <ex98.c>
>
>
> —
> Canada Research Chair in Mathematical and Computational Aspects of Solid
> Mechanics (Tier 1)
> Professor, Department of Mathematics & Statistics
> Hamilton Hall room 409A, McMaster University
> 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
> https://www.math.mcmaster.ca/bourdin | +1 (905) 525 9140 ext. 27243
>
>

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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