Ensure HYPRE_Initialize() is called with 2.28.0+

Add `MATDIAGONAL` and `PCMatSetApplyOperation()`

`MATDIAGONAL` (`MatCreateDiagonal()`) is an interface for
manipulating a diagonal matrix as a `Vec`, in particular supporting
no-copy modification of

Add `MATDIAGONAL` and `PCMatSetApplyOperation()`

`MATDIAGONAL` (`MatCreateDiagonal()`) is an interface for
manipulating a diagonal matrix as a `Vec`, in particular supporting
no-copy modification of the diagonal and inverse diagonal via
`MatDiagonalGetDiagonal()`, `MatDiagonalRestoreDiagonal()`,
`MatDiagonalGetInverseDiagonal()`, and
`MatDiagonalRestoreInverseDiagonal`().

`PCMatSetApplyOperation()` and `PCMatGetApplyOperation()`
support using all the linear operators currently defined by a `Mat`
(`MatMult()`, `MatMultTranspose()`, `MatMultHermitianTranspose()`,
`MatSolve()`, `MatSolveTranspose()`) as the operation of `PCApply()`
for a `PCMAT`. The advantage over a `PCSHELL` is that the other
operations (`PCApplyTranspose()`, `PCMatApply()`) are automatically
inferred.

These tools help make it easier to route operations like
`VecPointwiseMult()` and `VecPointwiseDivide()` through
`KSPSolve()` to avoid handling diagonal matrices as a special
case (a pattern that is going to be removed from `MATLMVM`).

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Merge remote-tracking branch 'origin/release'

Merge branch 'jczhang/feature-matdup-coo' into 'main'

Duplicate COO info in MatDuplicate(), but use reference counting to save memory

See merge request petsc/petsc!6459

Merge branch 'stefanozampini/hypre-minor' into 'main'

PCHYPRE: always print spgemm algorithm

See merge request petsc/petsc!6494

Merge branch 'adams/landau-file-ho-simplex' into 'main'

added support for reading mesh file into Landau and HO simplex support

See merge request petsc/petsc!6390

Fix trivial typos etc in some manual pages

Also remove manual page for SNESNGSFunction since it does not exist

PCHYPRE: always print spgemm algorithm

use hypre for non-device builds

clean up alt files

Merge remote-tracking branch 'origin/release'

Mat: duplicate COO info in MatDuplicate, but do reference counting to save memory

Thanks to Maxime Bouyges <maxime.bouyges@gmail.com> for feature requests.

Merge branch 'stefanozampini/h2opus-dmdakokkos' into 'main'

Add support for KOKKOS in H2OPUS

See merge request petsc/petsc!6408

Merge remote-tracking branch 'origin/release'

Clean up manual page for KSPFETIDP

Merge branch 'jolivet/fix-Wundef' into 'release'

Fix -Wundef

See merge request petsc/petsc!6458

Merge remote-tracking branch 'origin/release'

Update some discussions in the users manual

Also fix 32bit, 64bit, 32 bit, 64 bit throughout and blas and blas/lapack

PCH2OPUS: infer coordinates from DM if not present

Fix -Wundef

Merge branch 'barry/2023-05-04/add-pcgasm-set-subdomains' into 'main'

Add Fortran bindings for PCGASMSetSubdomains and PCGASMDestroySubdomains

See merge request petsc/petsc!6419

small bug fix in batch solver

Merge remote-tracking branch 'origin/release'

Cleanup of PCGASM manual pages

Add Fortran bindings for PCGASMSetSubdomains and PCGASMDestroySubdomains

Also fix broken Fortran binding for PCASMDestroySubdomains

Commit-type: Fortran
Reported-by: LEONARDO MUTTI <leonardo.mutti

Add Fortran bindings for PCGASMSetSubdomains and PCGASMDestroySubdomains

Also fix broken Fortran binding for PCASMDestroySubdomains

Commit-type: Fortran
Reported-by: LEONARDO MUTTI <leonardo.mutti01@universitadipavia.it>

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Merge remote-tracking branch 'origin/release'

PCHYPRE: disable fpe trapping around setup