Change names of Mat_XXX product contexts to MatProductCtx_XXX for code maintainability

Update destroy callback of all MatProductCtx and MatShellSetMatProductOperation() to use PetscCtxDestroyFn

Fortran: enforce lower case keywords and operators

also fixed occasional capitals in used modules with the help of @prj-

cleanup suggestions by @BarrySmith

also noticed a few stray functions not marked as external and put them
into modules

use modules instead of external

this allows for argument checking

remove labeled do loops

labeled do loops confused fprettify, so used it to rectify indentation

place all the include statements at the top

Repeated inclusion in multiple location, e.g. at the start of a
module or function is not needed. This becomes clear if all includes are
outside of the ac

place all the include statements at the top

Repeated inclusion in multiple location, e.g. at the start of a
module or function is not needed. This becomes clear if all includes are
outside of the actual Fortran code.
Added regex to check that with the help of @sbalay

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PetscDevice: remove C++ dependency when using --with-devicelanguage=C

CI: add mumps/scalapack to a __float128 job

MUMPS: add multi-precision support

Add PFLARE as an external package that can be installed by the PETSc configure with --download-pflare.

PFLARE adds new PC types, including GMRES and Neumann polynomials and AIR multigrid methods, wh

Add PFLARE as an external package that can be installed by the PETSc configure with --download-pflare.

PFLARE adds new PC types, including GMRES and Neumann polynomials and AIR multigrid methods, which are designed for solving asymmetric linear systems.

Thanks-to: Matt Knepley
Co-authored-by: Pierre Jolivet, Barry Smith

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MATIS: fix SetValuesBlocked for submatrix

Fix -Wshorten-64-to-32

Change use of void (*)(void) and void (**)(void) in the PETSc API to PetscVoidFn * and PetscVoidFn ** or PetscErrorCodeFn * or PetscErrorCodeFn **

Run fprettify

Merge branch 'barry/2025-09-04/deprecate-mpiu-bool' into 'main'

Deprecate MPIU_BOOL which used to be for PETSc's enum Bool but now is just MPI_C_BOOL

See merge request petsc/petsc!8691

Merge branch 'update_htool' into 'main'

MatHtool: update hash and add recompression option

See merge request petsc/petsc!8718

MatHtool: update hash and add recompression option

Deprecate MPIU_BOOL which used to be for PETSc' enum Bool but now is just MPI_C_BOOL so no longer needs its own name

MATIS: implement ZeroRowsLocal and ZeroRowsColumnsLocal local reference

add tests

better debugging capabilities

using MPIU wrappers where available and PetscCallMPI for all MPI(U)
functions

MAT test ex125: add failing test for superlu_dist

Merge remote-tracking branch 'origin/release'

MATIS: fix MatGetLocalSubMatrix

as some point this got broken but don't know why

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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Convert some SETERRQ() to PetscCheck()