Change *.cpp to *.cxx

Merge branch 'barry/2026-02-14/remove-last-of-source-horizontal-lines' into 'main'

Remove the last of the use of horizontal lines --- as seperators. With modern...

See merge request petsc/petsc!9039

Merge branch 'barry/2026-02-14/fix-defined-missing-braces' into 'main'

Fix the inconsistent usage of #if defined XXX compared to defined(XXX)

See merge request petsc/petsc!9040

Fix the inconsistent usage of #if [!]defined XXX compared to defined(XXX)

Thanks-to: Pierre Jolivet

An LLM Claude detected the incosnsitency it was not used to remove the inconsistency

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

Fix style of 6497c311e7b976d467be1503c1effce92a60525c

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

MPI: update the GPU-awareness check

style adjustments (mainly removal of leading white space)

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 'balay/avoid-dup-cuda-sources' into 'main'

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

See merge request petsc/petsc!8950

tests: use exNNcu.cu and exNNk.kokkos.cxx names

Merge branch 'fix-options-left' into 'main'

Fixes doc and behaviour of an unset -options_left value as reported in #1834.

Closes #1834

See merge request petsc/petsc!8905

Fixes doc and behaviour of an unset -options_left value as reported in #1834.

Now, `-options_left` and `-options_view` are independent.

Improve the propagation of function domain error handling in SNES, especially in the line search routines.

Due to the object layering of SNESLineSearch under SNES there is some code duplication incl

Improve the propagation of function domain error handling in SNES, especially in the line search routines.

Due to the object layering of SNESLineSearch under SNES there is some code duplication include both SNESLineSearchReason and SNESConvergedReason and SNESCheckFunctionNorm() and SNESLineSearchCheckFunctionNorm() and Jacobian friends

Reported-by: david.knezevic@akselos.com

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Fix missing initializer

Merge branch 'release'

Improve formatting in some PetscSF manual pages

Finally start some basic material on PetscSF in the users manual

Housekeeping

Add the logging of gpu energy

- Remove unneeded PETSC_HAVE_DEVICE macro
- -log_view_gpu_energy requires CUDA version >= 12.2
- Use PetscDefined instead of macro

SYCL: remove the dependence on Kokkos

Fortran: enforce lower case keywords and operators

also fixed occasional capitals in used modules with the help of @prj-