Merge branch 'jczhang/2024-09-05/feature-mat-get-vpb' into 'main'

PC: add new mat ops MATOP_GET_{BLOCK, VBLOCK}_DIAGONAL

See merge request petsc/petsc!7811

PC: add new mat ops MATOP_GET_{BLOCK, VBLOCK}_DIAGONAL

so that a shell matrix can return its own (variable) point blocks in a matrix for use in PC (V)PBJacobi

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/minor-housekeeping' into 'release'

Some documentation and visibility fixes

See merge request petsc/petsc!7696

Some documentation and visibility fixes

Merge branch 'jolivet/fix-missing-field-initializers' into 'main'

Mat: fix -Wmissing-field-initializers

See merge request petsc/petsc!7628

Mat: fix -Wmissing-field-initializers

Merge branch 'barry/2024-05-29/minor-fortran-stub-cleanup' into 'main'

More improvements to Fortran stubs and interfaces

See merge request petsc/petsc!7598

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of PETSC_NULL_INTEGER
Pass arrays (and not scalar values) when the argument is expecting an array; this means replace, for example, the argument v with [v]
Use PetscObjectIsNull(obj) to check if the object is NULL, instead of obj == PETSC_NULL_XXX

The compiler will now automatically prevent you from using the wrong argument type for the first three bullets above
This will also require an update sowing with the new sowing branch this MR is using.

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Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2024-05-27/fix-bug-baij-setvaluesblocked/release' into 'release'

Fix serious bug in MatSetValuesBlocked for SeqBAIJ when a reallocation is needed.

See merge request petsc/petsc!

Merge branch 'barry/2024-05-27/fix-bug-baij-setvaluesblocked/release' into 'release'

Fix serious bug in MatSetValuesBlocked for SeqBAIJ when a reallocation is needed.

See merge request petsc/petsc!7578

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Remove now redundant increase in mat nonzero state

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 'hongzh/sell-hip' into 'main'

Add SELLHIP

See merge request petsc/petsc!7338

Add SELLHIP

- The HIP kernels are converted directly from their CUDA version
- AMD GPUs and NVIDIA GPUs use different warp sizes. We set the warp size to 64 by default for AMD GPUs to faciliate comp

Add SELLHIP

- The HIP kernels are converted directly from their CUDA version
- AMD GPUs and NVIDIA GPUs use different warp sizes. We set the warp size to 64 by default for AMD GPUs to faciliate compile-time code optimization

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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 'adams/feature-jacobi-l1' into 'main'

Mat: GetAbsSum (l1) row norms; PCJacobi: add scaled L1 diagonal approximation

See merge request petsc/petsc!7260

Mat: GetAbsSum (l1) row norms; PCJacobi: add scaled L1 diagonal approximation

Merge branch 'jolivet/fix-ubsan' into 'main'

Pacify UBSan

See merge request petsc/petsc!7158

Sys: add PetscSafePointerPlusOffset() to pacify UBSan

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2023-12-04/fix-manpage-references/release' into 'release'

Update references in the manual pages to use Sphinx citation processing

See merge request petsc/petsc!7101