Adding Gonzalez term to DG

Merge branch 'release'

Increase patchlevel to 3.16.2

Merge remote-tracking branch 'origin/release'

Plex+Doc: Add more section information

Docs: DMPlex manual: add missing inline code formatting

Docs: DMPlex manual: remove duplicated link text

Merge branch 'jwallwork23/docs' into 'main'

Docs: Metric-based mesh adaptation

See merge request petsc/petsc!4583

docs plex: hook up bibtex

docs plex: metric-based mesh adaptation

Merge remote-tracking branch 'origin/release'

Docs: use .. code-block instead of :: for C code blocks

This is more consistent with our style suggestions for console blocks,
hopefully makes it more obvious that these blocks can be specialized
fo

Docs: use .. code-block instead of :: for C code blocks

This is more consistent with our style suggestions for console blocks,
hopefully makes it more obvious that these blocks can be specialized
for non-C languages and with additional Sphinx options.

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dm adapt: preserve cell tags

TAO: unify options for bounded Newton-Krylov

Fix typos here and there

Docs: remove PETSc configuration on clean

Fixes errors in "pages" job in .gitlab-ci.yml which executes this
"clean" target between builds of main and release.

doc/docs/changes: mention public API changes for DMPlexCreateFromFile() and DMPlexCoordinatesLoad()

plex adapt: finish integration of Mmg and ParMmg

Note that the interfaces for Pragmatic, Mmg
and ParMmg now exist in their own subdirectories

plex metric: make DMPlexMetricSetFromOptions public

also create a sub-list for plexmetric changes

Merge remote-tracking branch 'origin/release'

Merge branch 'adams/landau-cuda-opt' into 'main'

Landau optimizations + GPU assembly bug fix

See merge request petsc/petsc!4358

Merge branch 'ksagiyam/dmplex_path_change' into 'main'

Ksagiyam/dmplex path change

Closes #956 and #896

See merge request petsc/petsc!4441

add hook for CPU cusparse solves

Merge branch 'jczhang/feature-kokkos-spgemm' into 'main'

Add initial MatProduct support for MATAIJKOKKOS

See merge request petsc/petsc!4303

plexhdf5: Introduce storage versioning and version 2.0.0;

* introduce DMPlexStorageVersion x.y.z
* if no version specified in file => 1.0.0
[original version before the project - that in petsc rel

plexhdf5: Introduce storage versioning and version 2.0.0;

* introduce DMPlexStorageVersion x.y.z
* if no version specified in file => 1.0.0
[original version before the project - that in petsc release 3.16.0]
* check version in both file and option -dm_plex_view_hdf5_storage_version
* version 2.0.0 changes paths to topology, labels, coordinates
* support both versions 1.0.0 and 2.0.0 for writing
* use sizeof in PetscSNPrintf() calls

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Docs: use :eq: instead of :any: to refer to equations

The use of :any: doesn't seem to work with the LaTeX builder
and leads to undefined references.