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 'barry/2025-10-18/optimize-aij-ops' into 'main'

Refactor handling of diagonal marking in *AIJ and SELL matrices

See merge request petsc/petsc!8797

- Replace MatMissingDiagonal() and MatMarkDiagonals_SeqXXX() with MatGetDiagonalMarkers_SeqXXX()

- Mat_SeqXXX->diag is not automatically created during MatAssemblyEnd() saving memory and time

- Replace MatMissingDiagonal() and MatMarkDiagonals_SeqXXX() with MatGetDiagonalMarkers_SeqXXX()

- Mat_SeqXXX->diag is not automatically created during MatAssemblyEnd() saving memory and time

- Accessing Mat_SeqXXX->diag now requires the use of MatGetDiagonalMarkers_SeqXXX() except when the current values are known to be correct; for example during numerical factorizations and solves

- Mat_SeqXXX->diag is now never shared among matrices; hence the free_diag flag is gone. That was always a risky proposition since any of the owning matrices could chang the values thus making them incorrect for other owners.

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Merge branch 'jolivet/feature-matproduct_atb-seqbaij' into 'main'

MatSeqBAIJ: add MatProduct_AtB implementation (B of type MatSeqDense)

See merge request petsc/petsc!8848

MatSeqBAIJ: add MatProduct_AtB implementation (B of type MatSeqDense)

Merge branch 'barry/2025-10-24/fix-dmshellsetdestroyctx' into 'main'

Finish converting the function prototypes of destroy for contexts to use PetscCtxDestroyFn

See merge request petsc/petsc!8810

Change names of Mat_XXX product contexts to MatProductCtx_XXX for code maintainability

Update destroy callback of all MatProductCtx and MatShellSetMatProductOperation() to use PetscCtxDestroyFn

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 'stefanozampini/useless-cast' into 'main'

Remove useless cast

See merge request petsc/petsc!7894

Brain dead fixes for useless casts

Merge branch 'barry/2024-09-29/fix-function-typedef-style' into 'main'

Unify handling of context destructors

See merge request petsc/petsc!7900

Unifies all context destructors to have a form of PetscCtxDestroyFn == PetscErrorCode (*)(void **)

Changes the previous subset of destructor APIs that used PetscErrorCode (*)(void *) (mostly those t

Unifies all context destructors to have a form of PetscCtxDestroyFn == PetscErrorCode (*)(void **)

Changes the previous subset of destructor APIs that used PetscErrorCode (*)(void *) (mostly those that
used PetscContainer

- Now allows any context to be a PetscObject
- Will provide a cleaner mapping to bindings in other languages
- Simplifies the maintenance of PETSc source code; improves clarity

Not backward compatible, compiler warnings will tell users what functions need to be updated

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Merge branch 'jolivet/housekeeping-before-release-ci' into 'main'

Housekeeping before 3.22.0

See merge request petsc/petsc!7873

Use PetscObjectContainerCompose() when applicable

Merge branch 'jolivet/clang-format-19' into 'main'

clang-format-19

See merge request petsc/petsc!7644

Remove unneeded parentheses

Merge branch 'barry/2023-09-15/fix-log-pcmpi' into 'main'

add optimized shared memory PCMPI and add users manual section on comparing STREAMS performance to PETSc application performance

See merge

Merge branch 'barry/2023-09-15/fix-log-pcmpi' into 'main'

add optimized shared memory PCMPI and add users manual section on comparing STREAMS performance to PETSc application performance

See merge request petsc/petsc!6903

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Add shared memory support for PCMPI using both shmget() and MPI_Win_allocate_shared()

Merge branch 'stefanozampini/firedrake-1' into 'main'

Updates for Firedrake: first batch

See merge request petsc/petsc!7358

asan fixes

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

Pacify UBSan

See merge request petsc/petsc!7158