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/2025-07-30/fix-matshellsetoperationarg' into 'main'

Complete usage of PetscVoidFn and PetscErrorCodeFn and introduce PetscFortranCallbackFn

See merge request petsc/petsc!8615

Change use of void (*)(void) and void (**)(void) in the PETSc API to PetscVoidFn * and PetscVoidFn ** or PetscErrorCodeFn * or PetscErrorCodeFn **

Merge branch 'knepley/feature-ts-landau-moments' into 'main'

TS Hamiltonian ex4: Preliminary moment equations

See merge request petsc/petsc!8573

DM: Allow creation of a gradient matrix between spaces
- This is like the mass matrix, but with a gradient on the continuous space
- We use this for conservation laws in moments of particle systems
-

DM: Allow creation of a gradient matrix between spaces
- This is like the mass matrix, but with a gradient on the continuous space
- We use this for conservation laws in moments of particle systems
- Add projection to DMSwarm to implement this

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Merge branch 'barry/2025-05-17/fix-ksp-typedef-function-prototypes' into 'main'

Clean up the use of typedef function prototypes for KSP

See merge request petsc/petsc!8431

Clean up the use of typedef function prototypes for KSP

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-typos' into 'release'

Fix typos

See merge request petsc/petsc!8259

Fix typos

Merge branch 'knepley/feature-swarm-remap' into 'main'

Swarm: Adding remapping

See merge request petsc/petsc!8059

Swarm: Move remapping into the library and changed Swarm setup
- I changed the meaning of DMSetUp() for Swarm. Now it sets up the fields and cell DMs, but not particles. This has to be true to allow

Swarm: Move remapping into the library and changed Swarm setup
- I changed the meaning of DMSetUp() for Swarm. Now it sets up the fields and cell DMs, but not particles. This has to be true to allow
user intervention in particle setup.
- Add DMSwarmRemapType, DMSwarmRemap(), and DMSwarmDuplicate()
- Add DMSwarmGetType()
- Add DMSwarmGetCellDMByName() and DMSwarmGetCellDMNames()

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Merge branch 'knepley/feature-swarm-remap' into 'main'

Knepley/feature swarm remap

See merge request petsc/petsc!8054

DSwarm: Add DMSwarmCellDM type
- Vectors can be created from several fields
- Each cell DM has a separate cellid field and sort context
- Mass matrix can now handle multiple fields
- Add DMSwarmCellD

DSwarm: Add DMSwarmCellDM type
- Vectors can be created from several fields
- Each cell DM has a separate cellid field and sort context
- Mass matrix can now handle multiple fields
- Add DMSwarmCellDMCreate(), DMSwarmCellDMDestroy(), DMSwarmCellDMView(), DMSwarmCellDMGetDM(), DMSwarmCellDMGetFields(), DMSwarmCellDMGetCoordinateFields(), DMSwarmCellDMGetCellID(), DMSwarmCellDMGetSort(), DMSwarmCellDMSetSort(), and DMSwarmCellDMGetBlockSize()
- Add DMSwarmAddCellDM(), DMSwarmSetCellDMActive(), and DMSwarmGetCellDMActive()
- Add DMSwarmCreateGlobalVectorFromFields(), DMSwarmDestroyGlobalVectorFromFields(), DMSwarmCreateLocalVectorFromFields(), and DMSwarmDestroyLocalVectorFromFields()
- Add DMSwarmSortDestroy()

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DM: Removed unnecessary transpose

Merge branch 'knepley/feature-hamiltonian-ex2-opt' into 'main'

Fix Hamiltonian ex2 for Landau Damping

See merge request petsc/petsc!7937

DMSwarm: Allow multiple fields to define the DM field and multiple cellDM, allow different coordinate fields, and compute moments
- Changed interface for DMSwarmVectorDefineField() and DMSwarmVectorG

DMSwarm: Allow multiple fields to define the DM field and multiple cellDM, allow different coordinate fields, and compute moments
- Changed interface for DMSwarmVectorDefineField() and DMSwarmVectorGetField() to allow multiple fields
- Add DMSwarmReplace_Internal()
- Add coordinate name to Swarm
- Add DMSwarmGetCoordinateField() and DMSwarmSetCoordinateField()
- Add DMSwarmComputeMoments()
- In DMLocatePoints_Plex(), ignore extra coordinates in input vector
- Add CellDMInfo struct
- Add DMSwarmPushCellDM() and DMSwarmPopCellDM()

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Merge branch 'jose/deprecate-petsc-default' into 'main'

Fix usage of deprecated PETSC_DEFAULT

See merge request petsc/petsc!7707

Fix usage of deprecated PETSC_DEFAULT

Merge branch 'jolivet/clang-format-18' into 'main'

clang-format version 18

See merge request petsc/petsc!6902

checkbadSource: rules for PetscFunctionBegin and derivatives

Merge branch 'knepley/fix-swarm-project-fv' into 'main'

DM: Fix Swarm projection for FV

See merge request petsc/petsc!7282

Swarm: Generalize projection to multiple components
- Generalize mass matrix to multiple components
- Add DMSwarmGetFieldInfo()
- Add DMSwarmVectorGetField()

Swarm: Add continuous DM argument to DMSwarmProjectFields()