Merge branch 'barry/2025-11-30/fix-bad-ts' into 'main'

Fix bad decisions made in writing TS.

See merge request petsc/petsc!8877

Fix bad decisions made in writing TS.

Fix -ts_dt to -ts_time_step and add initial time step to TSView output

commit a5a92c11fa9681148df375b257eda4e09909b74e
Author: Barry Smith <bsmith@petsc.de

Fix bad decisions made in writing TS.

Fix -ts_dt to -ts_time_step and add initial time step to TSView output

commit a5a92c11fa9681148df375b257eda4e09909b74e
Author: Barry Smith <bsmith@petsc.dev>
Date: Mon Dec 1 14:51:27 2025 -0500

add max_snes_failures to TSView

commit 32d3e79f6fa743930b1bbf32d03b9181b5b5418a
Author: Barry Smith <bsmith@petsc.dev>
Fix wrongly named options and add to TSView

Wrong name for options database key -ts_max_reject should be -ts_max_step_rejections!

Add max_reject value to TSView

Add max_snes_failures to TSView

Add initial timestep to TSView

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 `TSTrajectorySetTransform()` to type `PetscCtxDestroyFn *`. These means the destroy function must deference the argument before operating on it

Merge branch 'jrwrigh/ts_eval_multiple_tssolve' into 'main'

ts: TSEvaluationTimes works over multiple calls to TSSolve()

See merge request petsc/petsc!8631

ts: TSEvaluationTimes works over multiple calls to TSSolve()

A few changes to make this work:
- Have multiple calls to `TSSetEvaluationTimes()` reset all index
counters in addition to `sol_times`

ts: TSEvaluationTimes works over multiple calls to TSSolve()

A few changes to make this work:
- Have multiple calls to `TSSetEvaluationTimes()` reset all index
counters in addition to `sol_times` and `sol_vecs`
- Move the allocation of `sol_vecs` into TSSolve itself
- At the top of `TSSolve()`, check if the initial condition has already
been written to `sol_times`

Also includes some minor renaming and comment changes

show more ...

Merge branch 'MarDiehl/1781-unify-type-of-setupcalled-to-petscbool' into 'main'

Use PetscBool instead of PetscInt for setupcalled

See merge request petsc/petsc!8495

Use PetscBool instead of PetscInt for setupcalled

PetscInt was used in some structs, but the underlying logic requires only Booleans. Also removed an unused variable and unified capitalization.

Merge branch 'kjansen/MRcontinue_Run_withTest' into 'main'

TS: Alternate approaches for continuing runs

See merge request petsc/petsc!7870

ts: Add -ts_run_steps and -ts_monitor_solution_skip_initial

Co-authored-by: Kenneth E. Jansen <kenneth.jansen@colorado.edu>
Co-authored-by: Jed Brown <jed@jedbrown.org>
Co-authored-by: Barry Smith <

ts: Add -ts_run_steps and -ts_monitor_solution_skip_initial

Co-authored-by: Kenneth E. Jansen <kenneth.jansen@colorado.edu>
Co-authored-by: Jed Brown <jed@jedbrown.org>
Co-authored-by: Barry Smith <bsmith@mcs.anl.gov>

show more ...

Merge branch 'jrwrigh/ts_monitor_frequency' into 'main'

refactor(ts): Remove -ts_monitor_frequency for *_interval

See merge request petsc/petsc!8473

refactor(ts): Remove -ts_monitor_frequency for *_interval

`-ts_monitor_frequency` was only respected by
`-ts_dmswarm_monitor_moments` anyways, which already had the `interval`
flag associated with i

refactor(ts): Remove -ts_monitor_frequency for *_interval

`-ts_monitor_frequency` was only respected by
`-ts_dmswarm_monitor_moments` anyways, which already had the `interval`
flag associated with it.

show more ...

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2025-05-15/docs-rm-last-of-preconditioning-matrix/release' into 'release'

Remove use of preconditioning or preconditioner matrix when it should be...

See merge request petsc/pet

Merge branch 'barry/2025-05-15/docs-rm-last-of-preconditioning-matrix/release' into 'release'

Remove use of preconditioning or preconditioner matrix when it should be...

See merge request petsc/petsc!8410

show more ...

Remove use of preconditioning or preconditioner matrix when it should be phrased as matrix used to construct preconditioner

Merge branch 'jolivet/cleanup-symbols' into 'main'

Do not expose unneeded symbols

See merge request petsc/petsc!8335

Do not expose unneeded symbols

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 'jrwrigh/tssetevaltimes' into 'main'

ts: Add TSEvaluationTimes

See merge request petsc/petsc!8144

style: Change tspan -> eval_times

This to make the backend nomenclature more consistent

ts: Create TS*EvaluationTimes() functions

Merge branch 'barry/2024-09-29/fix-function-typedef-style' into 'main'

Unify handling of context destructors

See merge request petsc/petsc!7900

Unifies all context destructors to have a form of PetscCtxDestroyFn == PetscErrorCode (*)(void **)

Changes the previous subset of destructor APIs that used PetscErrorCode (*)(void *) (mostly those t

Unifies all context destructors to have a form of PetscCtxDestroyFn == PetscErrorCode (*)(void **)

Changes the previous subset of destructor APIs that used PetscErrorCode (*)(void *) (mostly those that
used PetscContainer

- Now allows any context to be a PetscObject
- Will provide a cleaner mapping to bindings in other languages
- Simplifies the maintenance of PETSc source code; improves clarity

Not backward compatible, compiler warnings will tell users what functions need to be updated

show more ...

Merge branch 'hongzh/imex-fastslow' into 'main'

IMEX solver for fast slow systems

See merge request petsc/petsc!7722