Merge branch 'jolivet/petsctrytypemethod' into 'main'

Use Petsc[Use|Try]TypeMethod when possible

See merge request petsc/petsc!7213

DM: protect type callbacks with PetscUseTypeMethod

Use PetscTryTypeMethod when possible

Plex: Rework coordinate maps
- Add DMPlexCoordMap and some default maps
- Allow mapping to be done from DMSetFromOptions()
- Reimplemented DMPlexShearGeometry()
- Added affine fallback to DMPlexRemap

Plex: Rework coordinate maps
- Add DMPlexCoordMap and some default maps
- Allow mapping to be done from DMSetFromOptions()
- Reimplemented DMPlexShearGeometry()
- Added affine fallback to DMPlexRemapGeometry()

show more ...

Merge remote-tracking branch 'origin/release'

DMCopyAuxiliaryVec: must take reference on the vectors

Merge branch 'jeremy/ceed-basis-update' into 'main'

ceed - use CEED_BASIS_NONE over CEED_BASIS_COLLOCATED

See merge request petsc/petsc!7125

DM: Correct misspelling

Plex: Fix coordinate space creation for submeshes with attached cells

LIBBASE is no longer used in make so remove it

ceed - use CEED_BASIS_NONE over CEED_BASIS_COLLOCATED

Plex: Should set DS from options after creation

Backport from main (cf1363e4f1a257c8e2d557b3d09599624a61d010)

Merge branch 'jed/libceed-i64-support' into 'main'

libceed: Add support for 64-bit indices

See merge request petsc/petsc!7076

libceed: Add support for 64-bit indices

Fix PetscOptionsGetViewer() so it works in a thread-safe way

When PetscOptionsGetViewer() returns, for example, PETSC_VIEWER_STDOUT_SELF the same object is shared
by all threads that call PetscOptio

Fix PetscOptionsGetViewer() so it works in a thread-safe way

When PetscOptionsGetViewer() returns, for example, PETSC_VIEWER_STDOUT_SELF the same object is shared
by all threads that call PetscOptionsGetViewer(). In the previous code PetscObjectReference() and
dereference (via PetscViewerDestroy() where called on the viewer by multiple threads after the viewer
was accessed thus corrupting the object.

This branch introduces a PetscOptionsRestoreViewer() that allows not doing the referencing and dereferencing
on persistant viewers, thus removing the specific race condition above.

Other possible solutions include

Use a lock on each PetscObjectReference/Dereference() just in case they are shared. Could be time consuming so one
could mark each object as either threadshared or independent and only do the locks on threadshared objects. This lowers
the cost but would require more extensive changes to PETSc infrastructure. And I do not know if this shared/not shared model
is what we need in the long run, though it might be.

show more ...

Merge remote-tracking branch 'origin/release'