Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetC

Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetCtx ctx)

See merge request petsc/petsc!8956

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Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now t

Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now the standard for passing in contexts
- PetscCtxRt ctx is the standard for passing out contexts, including context destroy routines based on PetscCtxDestroyFn

Both of these are typedef to void*

Also removed most use of user and userctx for context arguments now consistently named ctx

Improved documentation on PetscCtx and PetscCtxRt and on how to use contexts (including getting them) from Fortran

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Merge branch 'ksagiyam/fix_submesh_coordinates' into 'main'

Ksagiyam/fix submesh coordinates

See merge request petsc/petsc!8353

plexsubmesh: make submesh inherit CG/DG coordinate elements

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2025-04-09/docs-dmproduct/release' into 'release'

Improve docs for DMPRODUCT and add a viewer

See merge request petsc/petsc!8300

Improve docs for DMPRODUCT and add a viewer

Merge branch 'jolivet/remove-unneeded-mpicast' into 'main'

Remove unneeded PetscMPIIntCast() for routines using PetscCount

Closes #1661

See merge request petsc/petsc!8099

Remove unneeded PetscMPIIntCast() for routines using PetscCount

Fix #1661

Merge branch 'jrwrigh/isoperiodic_sf_natural' into 'main'

isoperiodic: Correct sfNatural during reorientation

See merge request petsc/petsc!8001

dmcoords: Fix check for isoperiodic

DMGetIsoperiodicPointSF_Internal always returns an SF.

Merge branch 'jrwrigh/box_label_periodic_orient' into 'main'

Isoperiodic automatically handles cone orientations

See merge request petsc/petsc!7992

plex: Isoperiodic fixes cone orientations automatically

Merge branch 'jrwrigh/fix_isoperiodic_cgns' into 'main'

Plex: Fix DMSetCoordinateDisc projection for isoperiodic boundaries

See merge request petsc/petsc!7773

Plex: Fix DMSetCoordinateDisc() for isoperiodic boundaries

This reinstates the changes added in !5970 and removed in !6959.

tl;dr, `DMCreateInterpolation` (used in `DMSetCoordinateDisc`, and
`DMPro

Plex: Fix DMSetCoordinateDisc() for isoperiodic boundaries

This reinstates the changes added in !5970 and removed in !6959.

tl;dr, `DMCreateInterpolation` (used in `DMSetCoordinateDisc`, and
`DMProjectCoordinates` before it) does not handle isoperiodic boundaries
correctly. !5970 replaced that code using `DMProjectFieldLocal` instead.
That was then removed in !6959. This is also discussed in issue 1506.
I initially made an MR in !7308, but that was on a fork. This commit is
on the PETSc repo itself.

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Merge branch 'knepley/feature-plex-hdf5-opt' into 'main'

IS+HDF5: Add run-length compression to IS I/O

See merge request petsc/petsc!7862

IS+HDF5: Add run-length compression for arithmetic progressions to IS I/O
- Add DMPlexGetDepthStratumGlobalSize()
- Add name and compression info to HDF5ReadCtx
- Add compression argument to PetscVie

IS+HDF5: Add run-length compression for arithmetic progressions to IS I/O
- Add DMPlexGetDepthStratumGlobalSize()
- Add name and compression info to HDF5ReadCtx
- Add compression argument to PetscViewerHDF5ReadSizes_Private() and PetscViewerHDF5Load_Internal()
- Gather compressed info to all procs when loading
- Set name for local coordinates
- Add logging
- Add -is_view_compress to turn off compression
- Add -dm_plex_view_coordinate_section to just output coordinates
- Add -dm_plex_view_labels to turn off label output
- Support loading coordinates without section

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Merge branch 'barry/2024-09-02/rebased-fix-conversion-warnings' into 'main'

Compiler finds (and forbid) casts from higher precision integers to lower

See merge request petsc/petsc!7806

Fix MPIU_* routines to always return MPI error codes and thus be usable with PetscCallMPI()

Introduce MPIU_Count to be used when MPI_Count is not available

Merge branch 'knepley/fix-da-periodicity' into 'main'

DM+DA: Fixes for periodicity

See merge request petsc/petsc!7333

DM+DA: Fix bounding box for periodicity
- Fix Locate to respect periodicity

Merge branch 'jolivet/clang-format-18' into 'main'

clang-format version 18

See merge request petsc/petsc!6902

checkbadSource: rules for PetscFunctionBegin and derivatives

Merge branch 'jolivet/petsctrytypemethod' into 'main'

Use Petsc[Use|Try]TypeMethod when possible

See merge request petsc/petsc!7213

Use PetscTryTypeMethod when possible