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/remove-cast' into 'main'

Use NULL or nullptr instead of casted 0

See merge request petsc/petsc!7857

Use NULL or nullptr instead of casted 0

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 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

Merge branch 'barry/2022-08-21/clang-format-source' into 'main'

format repository with clang-format

See merge request petsc/petsc!5541

clang-format: convert PETSc sources to comply with clang-format

Merge branch 'barry/2022-07-23/add-petscbeginuser' into 'main'

Add PetscFunctionBeginUser to all PETSc C/C++ examples

See merge request petsc/petsc!5470

Add PetscFunctionBeginUser to all PETSc C/C++ examples

Now the stack frames will contain the main program and the correct line numbers in them

git ls-files | egrep "(tutorials|tests)" | xargs sed -

Add PetscFunctionBeginUser to all PETSc C/C++ examples

Now the stack frames will contain the main program and the correct line numbers in them

git ls-files | egrep "(tutorials|tests)" | xargs sed -i "s?\(PetscCall(PetscInitialize(&argc\)?PetscFunctionBeginUser;\n \1?g"

Commit-type: error-checking, testing-fix
/spend 15m

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Merge branch 'jolivet/feature-alen' into 'main'

Add PETSC_STATIC_ARRAY_LENGTH

See merge request petsc/petsc!5055

Add PETSC_STATIC_ARRAY_LENGTH

Merge branch 'jczhang/fix-petscsfcount-type' into 'main'

Use MPI native types MPI_Count/Aint instead of PetscInt64 for count/disp args of MPI routines

See merge request petsc/petsc!5050

CI: update osx-m1 to test cxx/64-bit-indices/mpich-4.0.1

And silence warning:

/Volumes/Scratch/svcpetsc/glci-builds/KTiqhtGQ/0/petsc/petsc/src/mat/tests/ex140.c:71:40: error: expression does not co

CI: update osx-m1 to test cxx/64-bit-indices/mpich-4.0.1

And silence warning:

/Volumes/Scratch/svcpetsc/glci-builds/KTiqhtGQ/0/petsc/petsc/src/mat/tests/ex140.c:71:40: error: expression does not compute the number of elements in this array; element type is 'MatOperation', not 'PetscInt' (aka 'long long') [-Werror,-Wsizeof-array-div]
PetscInt matop, nop = sizeof(optenum)/sizeof(PetscInt);
~~~~~~~ ^

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Merge branch 'jacobf/2022-02-23/variadic-chkerr' into 'main'

Variadic CHKERRQ()

See merge request petsc/petsc!4889

The great renaming:

- CHKERRQ() -> PetscCall()
- CHKERRV() -> PetscCallVoid()
- CHKERRMPI() -> PetscCallMPI()
- CHKERRABORT() -> PetscCallAbort()
- CHKERRCONTINUE() -> PetscCallContinue()
- CHKERRXX

The great renaming:

- CHKERRQ() -> PetscCall()
- CHKERRV() -> PetscCallVoid()
- CHKERRMPI() -> PetscCallMPI()
- CHKERRABORT() -> PetscCallAbort()
- CHKERRCONTINUE() -> PetscCallContinue()
- CHKERRXX() -> PetscCallThrow()
- CHKERRCXX() -> PetscCallCXX()
- CHKERRCUDA() -> PetscCallCUDA()
- CHKERRCUBLAS() -> PetscCallCUBLAS()
- CHKERRCUSPARSE() -> PetscCallCUSPARSE()
- CHKERRCUSOLVER() -> PetscCallCUSOLVER()
- CHKERRCUFFT() -> PetscCallCUFFT()
- CHKERRCURAND() -> PetscCallCURAND()
- CHKERRHIP() -> PetscCallHIP()
- CHKERRHIPBLAS() -> PetscCallHIPBLAS()
- CHKERRHIPSOLVER() -> PetscCallHIPSOLVER()
- CHKERRQ_CEED() -> PetscCallCEED()
- CHKERR_FORTRAN_VOID_FUNCTION() -> PetscCallFortranVoidFunction()
- CHKERRMKL() -> PetscCallMKL()
- CHKERRMMG() -> PetscCallMMG()
- CHKERRMMG_NONSTANDARD() -> PetscCallMMG_NONSTANDARD()
- CHKERRCGNS() -> PetscCallCGNS()
- CHKERRPTSCOTCH() -> PetscCallPTSCOTCH()
- CHKERRSTR() -> PetscCallSTR()
- CHKERRTC() -> PetscCallTC()

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PetscInitialize() and PetscFinalize() wrapped:

- ierr = PetscInitialize();if (ierr) return ierr;
+ CHKERRQ(PetscInitialize());

- ierr = PetscFinalize();
- return ierr;
+ CHKERRQ(PetscFinalize());
+

PetscInitialize() and PetscFinalize() wrapped:

- ierr = PetscInitialize();if (ierr) return ierr;
+ CHKERRQ(PetscInitialize());

- ierr = PetscFinalize();
- return ierr;
+ CHKERRQ(PetscFinalize());
+ return 0;

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chkerr and friends wrapped

Merge branch 'stefanozampini/petsc4py' into 'main'

Some work on petsc4py

See merge request petsc/petsc!4644

MATPYTHON: implement MatHasOperation_Python

add tests