Merge remote-tracking branch 'origin/release'

Merge branch 'mr/1863-mpiaij-coo' into 'release'

Consolidated bugfixes for issues #1860, #1863, #1864, #1865, #1866, #1867, #1868

See merge request petsc/petsc!9059

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

Merge branch 'jolivet/cleanup-matconjugate' into 'main'

[Mat|Vec]Conjugate(): no need to check for USE_COMPLEX in implementations

See merge request petsc/petsc!8937

MatConjugate(): no need to check for USE_COMPLEX in implementations

Merge branch 'jolivet/rm-duplicate-bs' into 'main'

MatView(): do not print block size twice (when it is greater than 1)

See merge request petsc/petsc!8892

MatView(): do not print block size twice

Merge branch 'jolivet/consolidate-options' into 'main'

Consolidate MAT_HERMITIAN and MAT_SYMMETRIC options

See merge request petsc/petsc!8856

MatDiagonalScale(): consolidate test of input Vecs

Rework MAT_SYMMETRIC and MAT_HERMITIAN options

Merge branch 'jolivet/fix-nonscalable-matnorm' into 'main'

MatNorm: fix some non-scalable implementations for NORM_1

See merge request petsc/petsc!8862

MatNorm: fix some non-scalable implementations for NORM_1

Reported-by: Vincent Robert <vincent.robert@cea.fr>

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 'jczhang/2025-09-19/precision-mumps' into 'main'

Support different precisions with MUMPS

See merge request petsc/petsc!8715

Enable ScaLAPACK and MUMPS for other precisions

Merge branch 'barry/2025-09-04/deprecate-mpiu-bool' into 'main'

Deprecate MPIU_BOOL which used to be for PETSc's enum Bool but now is just MPI_C_BOOL

See merge request petsc/petsc!8691

Merge branch 'stefanozampini/submat-zerorows' into 'main'

implement ZeroRowsLocal and ZeroRowsColumnsLocal for local references

See merge request petsc/petsc!8705

Deprecate MPIU_BOOL which used to be for PETSc' enum Bool but now is just MPI_C_BOOL so no longer needs its own name

Mat: add ops for zerorowscolumnslocal

Merge branch 'jolivet/clang-format-21' into 'main'

clang-format-21

See merge request petsc/petsc!8202

Remove unnecessary braces around one-liners

git grep -lE "[ ]*(if|for|while) \(.*\) {[^;]*;[^;]*}$" -- '*.c' '*.cxx' '*.cu' '*.h' '*.hpp' '*.cpp' | xargs sed -i '' -E 's#([ ]*)(if|for|while) \((.*)\

Remove unnecessary braces around one-liners

git grep -lE "[ ]*(if|for|while) \(.*\) {[^;]*;[^;]*}$" -- '*.c' '*.cxx' '*.cu' '*.h' '*.hpp' '*.cpp' | xargs sed -i '' -E 's#([ ]*)(if|for|while) \((.*)\) {([^;]*);([^;]*)}$#\1\2 \(\3\)\4;\5#'

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Convert some SETERRQ() to PetscCheck()

Merge branch 'MarDiehl/fix-typo' into 'main'

missing "s" for isascii and issundials

See merge request petsc/petsc!8559

missing "s" for isascii and issundials