Merge branch 'barry/2024-07-01/improve-docs-cflags/release' into 'main'

Add support for CFLAGS+=flags and friends

See merge request petsc/petsc!7662

Fix handling of initialization of number of BLAS threads

configure: update CMake/hwloc/MPICH

Add support for CFLAGS+=flags and friends

Merge branch 'release'

MUMPS: AVOID_MPI_IN_PLACE should be set in OPTF not CDEFS

MUMPS: update to version 5.7.2

Merge remote-tracking branch 'origin/release'

Kokkos: add PETSC_HAVE_KOKKOS_WITHOUT_GPU

CUDA: rename PETSC_HAVE_CUDA_MIN_ARCH to PETSC_PKG_CUDA_MIN_ARCH

Config: get rid of PETSC_HAVE_{I_MPI, MVAPICH2}_NUMVERSION and use the PETSC_PKG_ prefix

Config: get rid of PETSC_HAVE_MPICH_NUMVERSION and use petscpkg_version.h

Config: get rid of PETSC_HAVE_OMPI_MAJOR_VERSION and include it in petscpkg_version.h

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of PETSC_NULL_INTEGER
Pass arrays (and not scalar values) when the argument is expecting an array; this means replace, for example, the argument v with [v]
Use PetscObjectIsNull(obj) to check if the object is NULL, instead of obj == PETSC_NULL_XXX

The compiler will now automatically prevent you from using the wrong argument type for the first three bullets above
This will also require an update sowing with the new sowing branch this MR is using.

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Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2024-06-05/fix-mpich-configure-option-cuda-arch-all/release' into 'release'

MPICH configure is not happy if one passes '--with-cuda-sm=all

See merge request petsc/petsc!7613

MPICH configure is not happy if one passes '--with-cuda-sm=all

Reported-by: "Nelson, Lucas Horace" <lucas.k.nelson@und.edu>

configure: SLEPc 3.21.1

sprng requires K and R compiler options so add self.requirekandr = 1 to sprng.py.
Reported-by: Juerg Hauser

Merge branch 'jolivet/cleanup' into 'main'

Remove unneeded files and update CMake

See merge request petsc/petsc!7585

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing and fortranimpl.h to use PETSC_NULLPTR instead of NULL

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configure: CMake 3.29.3

configure: SuperLU_DIST 9.0.0

Merge remote-tracking branch 'origin/release'

Merge branch 'jed/ptscotch-7.0.4' into 'main'

PTScotch: update to version 7.0.4

See merge request petsc/petsc!7118