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

Merge branch 'ksagiyam/fix_submesh_coordinates' into 'main'

Ksagiyam/fix submesh coordinates

See merge request petsc/petsc!8353

dm: add createcellcoordinatedm method

Merge branch 'stefanozampini/bs' into 'main'

PetscLayout: set default block size to 1

See merge request petsc/petsc!8226

PetscLayout: default block size 1

Merge branch 'barry/2024-04-29/add-fortran-enums' into 'main'

Major updates to Fortran interface

See merge request petsc/petsc!7517

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous ve

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous versions!
- also clean up inconsistent PETSc code detected by new Fortran generation tools
- drop use of bfort
- automatically generate all the Fortran PETSc objects, enums etc from the include files
- generate most of the Fortran interface definitions and functions from the source code
- simplify the number and organization of Fortran modules

Co-authored-by: Jose E. Roman <jroman@dsic.upv.es>

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Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2024-11-26/improve-man-pages/release' into 'release'

Improve some manual pages in KSP/SNES

See merge request petsc/petsc!8071

Improve some manual pages in KSP/SNES

Merge branch 'stefanozampini/useless-cast' into 'main'

Remove useless cast

See merge request petsc/petsc!7894

Brain dead fixes for useless casts

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

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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Merge branch 'barry/2024-04-13/fix-sowing-strings' into 'main'

Update PETSc to use sowing bfort that handles string arguments and PETSC_NULL_INT

See merge request petsc/petsc!7480

Update source code removing all unneeded /*@C and associated manual stubs and interfaces

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

clang-format version 18

See merge request petsc/petsc!6902

Remove multiple parentheses and extra semicolon

git grep -l -E "\(\([a-zA-Z0-9_]+\)\(\*[a-zA-Z0-9_]+\)[, )]" | xargs sed -r -i'' 's#\(\(([a-zA-Z0-9_]+)\)\(\*([a-zA-Z0-9_]+)\)([, )])#\(\(\1\)\*\2\3#g

Remove multiple parentheses and extra semicolon

git grep -l -E "\(\([a-zA-Z0-9_]+\)\(\*[a-zA-Z0-9_]+\)[, )]" | xargs sed -r -i'' 's#\(\(([a-zA-Z0-9_]+)\)\(\*([a-zA-Z0-9_]+)\)([, )])#\(\(\1\)\*\2\3#g'
git grep -l -E "Petsc(.)*\(\(\*[a-zA-Z0-9_]*\)," | xargs sed -r -i'' 's#Petsc([a-zA-Z0-9_]*)\(\(\*([a-zA-Z0-9_]*)\), #Petsc\1(*\2, #g'
git grep -l -E "([\!\&\~\*\(]|\)\)|\([^,\*\(]+\**\))\(([a-zA-Z0-9_]+((\.|->)[a-zA-Z0-9_]+|\[[a-zA-Z0-9_ \%\+\*\-]+\])+)\)" | xargs sed -r -i'' 's#([\!\&\~\*\(]|\)\)|\([^,\*\(]+\**\))\(([a-zA-Z0-9_]+((\.|->)[a-zA-Z0-9_]+|\[[a-zA-Z0-9_ \%\+\*\-]+\])+)\)#\1\2#g'

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checkbadSource: rules for PetscFunctionBegin and derivatives

Merge branch 'thecasterian/dmstag-general-multigrid' into 'main'

DMStag: support general multigrid scheme

See merge request petsc/petsc!7250

DMStag: implement interpolation and restriction for general cases

Removes constraints on the refinement factor and the degree of freedom
in `DMCreateInterpolation_Stag()` and `DMCreateRestriction_St

DMStag: implement interpolation and restriction for general cases

Removes constraints on the refinement factor and the degree of freedom
in `DMCreateInterpolation_Stag()` and `DMCreateRestriction_Stag()`.

Update test ex20 to test the new features.

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DMStag: support refinement factor

Add member variable `refineFactor` in `DM_Stag` so that DMStag can
support arbitrary refinement factor in `DMRefine()` and `DMCoarsen()`.

Add functions to set and

DMStag: support refinement factor

Add member variable `refineFactor` in `DM_Stag` so that DMStag can
support arbitrary refinement factor in `DMRefine()` and `DMCoarsen()`.

Add functions to set and get the refinement factor.

Add new options to set the refinement factor in
`DMSetFromOptions_Stag()`.

Update test ex16 to test the new feature.

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Merge branch 'thecasterian/dmstag-local-to-local' into 'main'

DMStag: support local-to-local operations, add ex53 to test

See merge request petsc/petsc!7145

DMStag: implement local-to-local, add ex53 to test