Merge branch 'dalcinl/bt-byte' into 'main'

Implement PetscBT with new PetscByte datatype as unsigned char

See merge request petsc/petsc!9046

Merge remote-tracking branch 'origin/release'

Fix MPI_Comm_rank/size API mixups in helpers (#1865,#1866)

Merge branch 'barry/2026-02-09/docs-dm' into 'main'

Add a bit more discussion of DM and their commonalities to the docs

See merge request petsc/petsc!9018

Add a bit more discussion of DM and their commonalities to the docs

Change *.cpp to *.cxx

Implement PetscBT with new PetscByte datatype as unsigned char

Remove the last of the use of horizontal lines --- as seperators. With modern code development systems they are not needed and just an eye-sore

Merge branch 'jczhang/2026-02-05/improve-mpi-gpu-aware' into 'main'

Improve MPI GPU-aware configure and check

See merge request petsc/petsc!9005

Replace mpirun with mpiexec, as only the latter is in the standard

fix(layout): Set global size as limit of ranges rather than max size

This will allow layouts to start from a non-zero index

style(sf): Minor style change

Basically make clang-format work as expected

PetscSFCreateStridedSF: fix when input is a VecScatter with bs != 0

Merge branch 'jrwrigh/petscsection_distribute_data' into 'main'

feat: Add PetscSectionMigrateData()

See merge request petsc/petsc!8963

feat(section): Add PetscSectionDistributeData()

This is a copy/paste of `DMPlexDistributeData()`, but brought up to the
PetscSection interface because the routine is completely generic

Co-authored-

feat(section): Add PetscSectionDistributeData()

This is a copy/paste of `DMPlexDistributeData()`, but brought up to the
PetscSection interface because the routine is completely generic

Co-authored-by: Barry Smith <bsmith@mcs.anl.gov>

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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 'jrwrigh/sf_user_inputs' into 'main'

PetscSF: Add input checking to SF routines

See merge request petsc/petsc!8971

fix(sf): Add input checking to SF routines

Merge branch 'jrwrigh/sfcoord_userinputs' into 'main'

sfcoord: Validate user input

See merge request petsc/petsc!8942

refactor(sf): Minor edits to PetscSFCreateByMatchingIndices()

CI: avoid duplicate file names with cuda/kokkos sources, add a test to checkbadSource

cuda+coverage uses 'nvcc --keep-dir=DIR' option - this creates
conflicts with 'make -j' where intermediate gener

CI: avoid duplicate file names with cuda/kokkos sources, add a test to checkbadSource

cuda+coverage uses 'nvcc --keep-dir=DIR' option - this creates
conflicts with 'make -j' where intermediate generated files in DIR
during compilation of one source-file might affect the compile of
another source file - with the same name.

CI: linux-cuda-pkgs can now run all tests - so remove the 'vec*' restriction

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Merge remote-tracking branch 'origin/release'

CI: test-harness - add a check for "'requires' within a 'testset' also needs a 'suffix'"

And MPIX_STREAM test in vec/is/sf/tests/ex1k reqires MPICH with CUDA/GPU_AWARE support.
Set MPIR_CVAR_CH4_RES

CI: test-harness - add a check for "'requires' within a 'testset' also needs a 'suffix'"

And MPIX_STREAM test in vec/is/sf/tests/ex1k reqires MPICH with CUDA/GPU_AWARE support.
Set MPIR_CVAR_CH4_RESERVE_VCIS=1 to fix the following error:

[1]PETSC ERROR: MPI error 135495183 Other MPI error, error stack:
internalX_Stream_create(91).: MPIX_Stream_create(info=0x9c000000, stream=0x55ab3b7dcbd0) failed
MPIR_Stream_create_impl(207):
MPID_Allocate_vci(149)......: No streams available. Use MPIR_CVAR_CH4_RESERVE_VCIS to reserve the number of streams can be allocated.

Co-authored-by: Satish Balay <balay@mcs.anl.gov>

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Merge branch 'barry/2025-12-27/ftn-rm-funname-interface-definition' into 'main'

Remove the function name from generated Fortran interface definitions.

Closes #1838

See merge request petsc/petsc!89

Merge branch 'barry/2025-12-27/ftn-rm-funname-interface-definition' into 'main'

Remove the function name from generated Fortran interface definitions.

Closes #1838

See merge request petsc/petsc!8921

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sfcoord: Validate user input