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 'jrwrigh/tspseudo_improvements' into 'main'

ts(pseudo): Various updates and improvements

See merge request petsc/petsc!8857

ts(pseudo): Grab and use fnorm from ComputeFunction

Mostly to make it more clear why this function is being called where it
is.

ts(pseudo): Use PetscCallBack() for adapt functions

ts(pseudo): Reuse Function evaluation even for IFunction

Previous implementation recomputed the IFunction everytime even if the
result was already available.

ts(pseudo): Remove update Vec

This means that every use of `TSPseudoGetSteadyResidual()` gets the
`ts->vec_sol` Vec and so the Xstate is consistent.

ts(pseudo): Remove TSPseudoComputeTimeStep() and TSPseudoVerifyTimeStep()

ts(pseudo): Remove unused `TSPseudoVerifyTimeStepDefault()`

ts(pseudo): Update TSPseudo to standard while loop

This also fixes behavior where, on SNES failure, the step repeats
without changing the simulation (i.e. it ignores the
TS_DIVERGED_NONLINEAR_SOLVE

ts(pseudo): Update TSPseudo to standard while loop

This also fixes behavior where, on SNES failure, the step repeats
without changing the simulation (i.e. it ignores the
TS_DIVERGED_NONLINEAR_SOLVE set by TSAdaptCheckStage()).

show more ...

ts(pseudo): Add TSPseudoComputeFunction()

ts(pseudo): Move to TSAdapt-based timestepping

Merge branch 'stefanozampini/fixes-before-release' into 'main'

small fixes before release

See merge request petsc/petsc!8717

TSPSEUDO: update needs to be copied inside the loop

Use Vec API to compute xdot
Remove redundant computation of xdot in Jacobian

Merge branch 'barry/2025-08-29/improve-ts-pseudo-performance' into 'main'

Optimize TSStep_Pseudo() for most common use case

See merge request petsc/petsc!8675

Avoid duplicate TSComputeIFunction() computation when possible in TSStep_Pseudo()

Improve the performance of TSPseudo by removing unneeded recalculations of the same function

Reported-by: aldo.bonfiglioli@unibas.it

This first commit removes the recalculation of the norm of F(u_f

Improve the performance of TSPseudo by removing unneeded recalculations of the same function

Reported-by: aldo.bonfiglioli@unibas.it

This first commit removes the recalculation of the norm of F(u_final) from the previous SNESSolve

show more ...

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/typos' into 'release'

Docs: typos

See merge request petsc/petsc!8636

Docs: typos

Merge remote-tracking branch 'origin/release'

Merge branch 'jrwrigh/tspseudo_docs' into 'release'

ts: Update TSPSEUDO documentation to mention adaptive timestepper

See merge request petsc/petsc!8534

ts: Update TSPSEUDO documentation to mention adaptive timestepper

Original documentation would have you believe the method is just a
simple increment on the timestep, but it's actually doing quite a

ts: Update TSPSEUDO documentation to mention adaptive timestepper

Original documentation would have you believe the method is just a
simple increment on the timestep, but it's actually doing quite a bit
more than that.

Co-authored-by: Barry Smith <bsmith@mcs.anl.gov>

show more ...

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2025-04-17/rm-dollar-sign-formated-manualpages/release' into 'release'

Remove the last of the uses of $ in the first line of formatted manual pages

See merge request petsc/petsc

Merge branch 'barry/2025-04-17/rm-dollar-sign-formated-manualpages/release' into 'release'

Remove the last of the uses of $ in the first line of formatted manual pages

See merge request petsc/petsc!8332

show more ...