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 '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 remote-tracking branch 'origin/release'

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

MatSeqBAIJ: add MatProduct_AtB implementation (B of type MatSeqDense)

See merge request petsc/petsc!8848

Merge branch 'jolivet/fix-matbaij-issymmetric' into 'release'

MatIsTranspose_SeqBAIJ(): fix for nonzero tolerance

See merge request petsc/petsc!8855

MatIsTranspose_SeqBAIJ(): fix for nonzero tolerance

MatSeqBAIJ: add MatProduct_AtB implementation (B of type MatSeqDense)

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

implement ZeroRowsLocal and ZeroRowsColumnsLocal for local references

See merge request petsc/petsc!8705

Mat: add ops for zerorowscolumnslocal

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

clang-format-21

See merge request petsc/petsc!8202

Convert some SETERRQ() to PetscCheck()

One-liners from petsc/petsc!5344 and petsc/petsc!5557

Slightly reworked regular expression

git ls-files -z -- '*.c' '*.cxx' '*.cu' '*.h' '*.hpp' '*.cpp' | while IFS= read -r -d '' file; do
cat

One-liners from petsc/petsc!5344 and petsc/petsc!5557

Slightly reworked regular expression

git ls-files -z -- '*.c' '*.cxx' '*.cu' '*.h' '*.hpp' '*.cpp' | while IFS= read -r -d '' file; do
cat $file | tr '\n' '\r' | sed -E 's/\r([ ]*)(for|if|while|else) ([^\r]*)\{\r[ ]*Petsc([a-zA-Z]*)\(([^\r]*)\);\r[ ]*\}\r/\r\1\2 \3Petsc\4(\5);\r/g' | tr '\r' '\n' > ${file}.joe; mv ${file}.joe ${file}
done

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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

Merge branch 'lindad/hypre-control-through-pmat' into 'main'

Change hypre PC option defaults based on hypre matrix memory location

See merge request petsc/petsc!8505

Make MatGetCurrentMemType first class API

Merge branch 'jolivet/cleanup' into 'main'

Housekeeping

See merge request petsc/petsc!8392

MatOps cleanup

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

Do not expose unneeded symbols

See merge request petsc/petsc!8335

Do not expose unneeded symbols

Merge branch 'stefanozampini/bs' into 'main'

PetscLayout: set default block size to 1

See merge request petsc/petsc!8226