Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetC

Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetCtx ctx)

See merge request petsc/petsc!8956

show more ...

Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now t

Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now the standard for passing in contexts
- PetscCtxRt ctx is the standard for passing out contexts, including context destroy routines based on PetscCtxDestroyFn

Both of these are typedef to void*

Also removed most use of user and userctx for context arguments now consistently named ctx

Improved documentation on PetscCtx and PetscCtxRt and on how to use contexts (including getting them) from Fortran

show more ...

Merge branch 'deprecate-snes-enum' into 'main'

Mark SNES_DIVERGED_FNORM_NAN as deprecated.

See merge request petsc/petsc!8949

Mark SNES_DIVERGED_FNORM_NAN as deprecated.

I noticed this when recompiling IBAMR today. This was removed in !8914
but it should be deprecated first.

Merge branch 'barry/2025-12-24/improve-snes-domain-error-handling' into 'main'

Improve the propagation of function domain error handling in SNES, especially...

See merge request petsc/petsc!8914

Improve the propagation of function domain error handling in SNES, especially in the line search routines.

Due to the object layering of SNESLineSearch under SNES there is some code duplication incl

Improve the propagation of function domain error handling in SNES, especially in the line search routines.

Due to the object layering of SNESLineSearch under SNES there is some code duplication include both SNESLineSearchReason and SNESConvergedReason and SNESCheckFunctionNorm() and SNESLineSearchCheckFunctionNorm() and Jacobian friends

Reported-by: david.knezevic@akselos.com

show more ...

Merge branch 'barry/2025-10-24/fix-dmshellsetdestroyctx' into 'main'

Finish converting the function prototypes of destroy for contexts to use PetscCtxDestroyFn

See merge request petsc/petsc!8810

Change the `destroy()` function argument of `SNESSetConvergenceTest()` to type `PetscCtxDestroyFn *`

Development Tools: Vim, Emacs, Eclipse

Merge branch 'knepley/fix-snes-l2-deprecation' into 'main'

SNES: Deprecate l2 line search as secant

See merge request petsc/petsc!8667

SNES: Deprecate l2 line search as secant

Merge branch 'sneslinesearch-improvements' into 'main'

SNESLinesearch: Minor improvements

See merge request petsc/petsc!8630

SNESLinesearch: Minor improvements

- add missing configuration options in the documentation of the line searches (some of the available options were not listed), and consistently list their respecti

SNESLinesearch: Minor improvements

- add missing configuration options in the documentation of the line searches (some of the available options were not listed), and consistently list their respective default values

- add proper convergence criteria for the secant method in the L2 line search based on ltol and atol (otherwise, the secant method is mostly running for the maximum number of iterations)

- fix a small bug in the CP line search, where steptol * lambda was used to check for convergence based on the change of lambda instead of the ltol parameter

- rename sneslinesearch->maxstep to sneslinesearch->maxlambda in the options database to be consistent with its purpose in the algorithms

- rename SNESLineSearchL2 to SNESLineSearchSecant to better represent its underlying approach

show more ...

Merge branch 'knepley/fix-plex-orient-sf' into 'main'

Plex: Fix handling of NULL locals in PlexOrient

See merge request petsc/petsc!8443

SNES: Make SNESTestJacobian() report the norms

Merge branch 'barry/2025-05-15/fix-func-typedef-names' into 'main'

All typedef for functions are of the form (XXXXFn)(...) not (*XXXXyyyy)(....)

See merge request petsc/petsc!8408

Added missing deprecated macro for some SNESXXXFn

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>

show more ...

Merge branch 'jonas-heinzmann/fix-sneslinesearch-vi-directionalderivative' into 'main'

SNESLineSearch: fix computation of directional derivative in the case of the VI solvers

See merge request pets

Merge branch 'jonas-heinzmann/fix-sneslinesearch-vi-directionalderivative' into 'main'

SNESLineSearch: fix computation of directional derivative in the case of the VI solvers

See merge request petsc/petsc!8137

show more ...

SNESLineSearch: fix computation of directional derivative in the case of the VI solvers

The two line search algorithms bisection and critical point work with the directional derivative, assuming tha

SNESLineSearch: fix computation of directional derivative in the case of the VI solvers

The two line search algorithms bisection and critical point work with the directional derivative, assuming that F(x) = grad G(x).
However, when working with the variational inequality solvers, the constraints were not correctly considered when computing the directional derivative.
This commit introduces a new linesearch->ops->vidirderiv function which correctly considers the constraints (similar to linesearch->ops->viproject and linesearch->ops->vinorm).

show more ...

Merge branch 'knepley/feature-vi-example' into 'main'

VI Example

See merge request petsc/petsc!8135

SNES: Initialize local coordinates with grid sequencing, Automate bounds creation
- Add DMPlexSetSNESVariableBounds()
- Set bounds in PetscConvEst
- Added error viewer in PetscConvEst

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2024-11-26/improve-man-pages/release' into 'release'

Improve some manual pages in KSP/SNES

See merge request petsc/petsc!8071

Improve some manual pages in KSP/SNES