Merge branch 'jolivet/more-petscdefined' into 'main'

Minor housekeeping

See merge request petsc/petsc!9058

Switch some defined(PETSC_ to PetscDefined(

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

Consolidate MAT_HERMITIAN and MAT_SYMMETRIC options

See merge request petsc/petsc!8856

Rework MAT_SYMMETRIC and MAT_HERMITIAN options

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

clang-format version 18

See merge request petsc/petsc!6902

CI: update to clang-format-18

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/rm-first-empty-line' into 'main'

Remove first and last empty lines

See merge request petsc/petsc!6892

Remove first and last empty lines

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2023-04-21/fix-scalability-matconvert-aij-baij/release' into 'release'

Fix the scalability bug in MatConvert_SeqAIJ_SeqSBAIJ_Preallocate and MatConvert_SeqAIJ_SeqSBAIJ_Preallloca

Merge branch 'barry/2023-04-21/fix-scalability-matconvert-aij-baij/release' into 'release'

Fix the scalability bug in MatConvert_SeqAIJ_SeqSBAIJ_Preallocate and MatConvert_SeqAIJ_SeqSBAIJ_Prealllocate

See merge request petsc/petsc!6360

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Fix the scalability bug in MatConvert_SeqAIJ_SeqSBAIJ_Preallocate and MatConvert_SeqAIJ_SeqSBAIJ_Prealllocate

Commit-type: performance bug
Reported-by: Stefano Zampini

aij->sbaij preallocation fix

Merge branch 'jacobf/2022-12-10/petscerrorcode-nodiscard' into 'main'

Feature: Non-discardable PetscErrorCode

See merge request petsc/petsc!5923

Make PetscErrorCode a non-discardable enum

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2022-11-29/barry/2022-11-29/fix-matconvert-baij-aij/release' into 'release'

fix matconvert aij to baij to correctly check for any nonzero in a block. fix matincreaseoverlap aij t

Merge branch 'barry/2022-11-29/barry/2022-11-29/fix-matconvert-baij-aij/release' into 'release'

fix matconvert aij to baij to correctly check for any nonzero in a block. fix matincreaseoverlap aij to respect bs in IS

See merge request petsc/petsc!5897

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Fix for preallocation with incomplete blocks for MatConvert_AIJ_SBAIJ

Commit-type: bug-fix
/spend 2h
Reported-by: Pierre Jolivet

Merge branch 'jacobf/2022-09-21/2-bike-2-shed' into 'main'

Feature: Bicycle Storage Facility 2

See merge request petsc/petsc!5661

source code format changes due to .clang-format changes