petsc4py: add missing PetscViewerSetFromOptions

Merge remote-tracking branch 'origin/release'

petsc4py: add preallocateWithMatPreallocator binding

Merge branch 'release'

Increase patchlevel to 3.22.1

Merge remote-tracking branch 'origin/release'

Merge branch 'knepley/feature-hamiltonian-ex2-opt' into 'main'

Fix Hamiltonian ex2 for Landau Damping

See merge request petsc/petsc!7937

DMSwarm: Allow multiple fields to define the DM field and multiple cellDM, allow different coordinate fields, and compute moments
- Changed interface for DMSwarmVectorDefineField() and DMSwarmVectorG

DMSwarm: Allow multiple fields to define the DM field and multiple cellDM, allow different coordinate fields, and compute moments
- Changed interface for DMSwarmVectorDefineField() and DMSwarmVectorGetField() to allow multiple fields
- Add DMSwarmReplace_Internal()
- Add coordinate name to Swarm
- Add DMSwarmGetCoordinateField() and DMSwarmSetCoordinateField()
- Add DMSwarmComputeMoments()
- In DMLocatePoints_Plex(), ignore extra coordinates in input vector
- Add CellDMInfo struct
- Add DMSwarmPushCellDM() and DMSwarmPopCellDM()

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petsc4py: Fix Mat.zeroRowsColumnsStencil()

Swarm+Viewer: Add PyVista support

Swarm+Python: Need to return the blocksize of a Swarm field
- This would be better as a multidimensional array

Plex+Viewer: Added Python and PyVista viewers
- Enable viewer filename interface for Python viewer
- Add -viewer_python_filename to set the output filename
- Add -dm_plex_transform_active_values to e

Plex+Viewer: Added Python and PyVista viewers
- Enable viewer filename interface for Python viewer
- Add -viewer_python_filename to set the output filename
- Add -dm_plex_transform_active_values to explicitly set values in the label
- Add -dm_plex_option_phases to control sequencing of setup from the command line

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Python: Improved handling of exceptions and tracebacks

petsc4py: Exception chaining across Python/C boundaries

petsc4py: set 3.22.0 release strings

Merge branch 'release'

Increase patchlevel to 3.21.6

Fix regression from !7824

In file included from src/petsc4py/PETSc.c:1224:
In file included from src/lib-petsc/compat.h:16:
src/lib-petsc/compat/plexexodusii.h:11:16: error: conflicting types for 'D

Fix regression from !7824

In file included from src/petsc4py/PETSc.c:1224:
In file included from src/lib-petsc/compat.h:16:
src/lib-petsc/compat/plexexodusii.h:11:16: error: conflicting types for 'DMPlexCreateExodus'
11 | PetscErrorCode DMPlexCreateExodus(PETSC_UNUSED MPI_Comm comm, PETSC_UNUSED PetscInt n , PETSC_UNUSED PetscBool flg, PETSC_UNUSED DM *dm){PetscPlexExodusIIError;}
| ^
include/petscdmplex.h:204:29: note: previous declaration is here
204 | PETSC_EXTERN PetscErrorCode DMPlexCreateExodus(MPI_Comm, PetscExodusIIInt, PetscBool, DM *);
| ^

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Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in th

Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in the CI

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Remove PCGetFailedReasonRank, since identical to PCGetFailedReason

plexcreate: add localizationHeight and sparseLocalize args to DMPlexCreateBoxMesh()

Merge branch 'knepley/feature-1d-affine-map' into 'main'

Fixes for submesh handling

See merge request petsc/petsc!7823

Merge branch 'hongzh/imex-fastslow' into 'main'

IMEX solver for fast slow systems

See merge request petsc/petsc!7722

Add python APIs

DM+DS: Create FE with degree bounds
- Add degree bounds to DMCopyFields(), DMCopyDS(), PetscDSCopy(), and PetscDSSelectDiscretizations()
- Add PetscFELimitDegree()