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

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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

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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

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Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/typos' into 'release'

Fix typos

See merge request petsc/petsc!8753

Fix typos

Merge branch 'barry/2025-09-28/fix-petscerrorcodefn-cxx' into 'main'

Fix the definition of PetscErrorCodeFn; this reverts API change in !8615

See merge request petsc/petsc!8745

Fix the definition of PetscErrorCodeFn; this reverts API change in !8615

Co-authored-by: Pierre Jolivet <pierre@joliv.et>
Reported-by: Lisandro Dalcin <dalcinl@gmail.com>

Merge branch 'MarDiehl/fix-typo' into 'main'

missing "s" for isascii and issundials

See merge request petsc/petsc!8559

missing "s" for isascii and issundials

Merge branch 'knepley-main-patch-e088' into 'main'

SNES: Fix crash in line search

See merge request petsc/petsc!8657

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

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Update file linesearch.c

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2025-03-29/docs-fortran/release' into 'release'

Fix manual pages related to Fortran

See merge request petsc/petsc!8257

Fix manual pages related to Fortran

Remove a couple of dead Fortran bindings

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2025-03-11/fix-minor-snes-docs/release' into 'release'

Improve some SNES documentation especially with regard to nonlinear preconditioning

See merge request petsc/petsc!8189

Improve some SNES documentation especially with regard to nonlinear preconditioning

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

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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).

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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