Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/typos' into 'release'

Fix typos

See merge request petsc/petsc!8753

Fix typos

Merge branch 'tisaac/fix-mpidenseintconversion' into 'main'

Small MatLMVM fixes

See merge request petsc/petsc!8315

MatLMVM: Avoid typedef enum for values that will be used for arithmetic

Arithmetic on enums in c++ requires either overloading operators or
casting the output to the enumerated type. I had tried to

MatLMVM: Avoid typedef enum for values that will be used for arithmetic

Arithmetic on enums in c++ requires either overloading operators or
casting the output to the enumerated type. I had tried to satisfy these
requirements with `#if defined(__cplusplus) #endif` code, but there is
interest in PETSc compiling cleanly with `-Wc++-compat` as well.

In c, we lose almost nothing in terms of type safety doing

```
enum { A, B, C };
typedef PetscInt MyEnum;
```

instead of
```
typedef enum { A, B, C } MyEnum;
```

I suppose we lose `-Wswitch` warnings, but I am applying these changes
to enumerations that will never appear in switch statements.

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Merge branch 'tisaac/feature-lmvm-rework' into 'main'

MatLMVM rework

See merge request petsc/petsc!6401

MatLMVM: Complete rework of internals to use LMBasis and LMProducts

I don't think there is a good way to break this up into smaller commits: once I
use LMBasis and LMProducts in Mat_LMVM, all of the

MatLMVM: Complete rework of internals to use LMBasis and LMProducts

I don't think there is a good way to break this up into smaller commits: once I
use LMBasis and LMProducts in Mat_LMVM, all of the implementations that depend on
it are broken until they are changed to also use these new objects. It is probably
better to review all of the MatLMVM implementations (except for denseqn) as new code
rather than trying to review using a diff tool.

This rework achieves:

- Implementations of three classes of algorithms for limitd memory quasi-Newton updates
- MAT_LMVM_MULT_RECURSIVE: Recursive, level 1 BLAS algorithms that closely match
the typical way the methods are presented mathematically.
- MAT_LMVM_MULT_DENSE: level 2 BLAS algorithms that, when possible,
avoid any need for recomputation when the reference Jacobian J0 changes.
- MAT_LMVM_MULT_COMPACT_DENSE: level 2 BLAS algorithms that construct rank-m (or rank-2m)
update representations of the operators, for the best-performance on MatMult() and MatSolve(),
but at the cost of additional setup, and requiring more recomputation when J0 changes
than MAT_LMVM_MULT_DENSE
- Every quasi-Newton method has a dual method (e.g. BFGS and DFP): we exploit this duality
to use only one code path for a dual pair, reducing the numer of implementaitons to maintain
- Special handling of the case J0 = gamma * I, avoiding products that are unnecessary in this case
- Instead of including a MatLMVMDiagBrdn as the J0 matrix when J0 is
variable (which means that both B and J0 of basis vectors to maintain),
a SymBroydenRescale object is shared by MatLMVMDiagBrdn and other formats that use rescaling
- Improved correctness of when internal products need to be recomputed: if the user externally
changes J0, this will be detected

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Merge branch 'barry/2024-04-29/add-fortran-enums' into 'main'

Major updates to Fortran interface

See merge request petsc/petsc!7517

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous ve

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous versions!
- also clean up inconsistent PETSc code detected by new Fortran generation tools
- drop use of bfort
- automatically generate all the Fortran PETSc objects, enums etc from the include files
- generate most of the Fortran interface definitions and functions from the source code
- simplify the number and organization of Fortran modules

Co-authored-by: Jose E. Roman <jroman@dsic.upv.es>

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Merge branch 'jacobf/2023-08-17/header-guard-check' into 'main'

Check header guards

See merge request petsc/petsc!6822

Convert all header guards to pragma once

Fix some malformed if !defined() header guards

Merge branch 'stefanozampini/matlmvm' into 'main'

some optimizations for MATLMVM

See merge request petsc/petsc!6034

MATLMVM: Some optimizations

Use VecMDot when possible
Use VecDotNorm2
replace copy + scale with AXPBY

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/2022-06-28/add-petsccallmethod' into 'main'

Introduce PetscTryTypeMethod and PetscUseTypeMethod to replace ad hoc use of (*obj->ops->method) in source

See merge request petsc/

Merge branch 'barry/2022-06-28/add-petsccallmethod' into 'main'

Introduce PetscTryTypeMethod and PetscUseTypeMethod to replace ad hoc use of (*obj->ops->method) in source

See merge request petsc/petsc!5376

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Convert setfromoptions methods over to PetscTryTypeMethod() approach

Flipped the order of the arguments for the function pointers (*setfromoptions)(PetscOptionItem*,obj); and friends to make them co

Convert setfromoptions methods over to PetscTryTypeMethod() approach

Flipped the order of the arguments for the function pointers (*setfromoptions)(PetscOptionItem*,obj); and friends to make them consistent with PetscTryTypeMethod() and all the other methods

Commit-type: refactorization
/spend 4h

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Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc

Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc!3064

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Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

Commit-type: portability-fix, testing-fix, style-fix, feature, maintainability
/spend 1.5h

Merge branch 'denera/snes-qn-harmonization' into 'master'

SNESQN harmonization with MATLMVM objects

See merge request petsc/petsc!2620

refactored LMVM matrix names for Broyden-class methods

SNESQN harmonization with MATLMVM objects

Merge remote-tracking branch 'origin/barry/add-petscarrayxxx-ops' [PR #1771]

Resolved issues brought up in PR

Commit-type: bug-fix, style-fix
Reported-by: Patrick Sanan <patrick.sanan@gmail.com>