Merge branch 'balay/fix-format' into 'main'

fix bad format flagged by checkbadSource.out

See merge request petsc/petsc!5974

fix bad format flagged by checkbadSource.out

DMBlockingType: use DM_BLOCKING_TOPOLOGICAL_POINT to clarify meaning

Reported-by: Barry Smith

DMBlockingType: add support for field node blocking

We used point blocking in the past, meaning that all dofs on a
topological point (cell, face, edge, vertex) were densely coupled in the
point-bloc

DMBlockingType: add support for field node blocking

We used point blocking in the past, meaning that all dofs on a
topological point (cell, face, edge, vertex) were densely coupled in the
point-block diagonal. This is expensive and often unnecessary. Field
node blocking reduces PCVPBJACOBI setup and apply cost for cubic and
higher elements.

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DMPlex CGNS: fix isoperiodic coordinates when collocated DM is needed

DMPlex CGNS: enable writing a mesh with no fields defined

DMPlex zbox: fix affine coordinate index for cubic and higher order spaces

DMProjectFieldLocal: allow localU to be NULL

This is useful when a projection is defined entirely in terms of
coordinates and perhaps auxiliary fields. The implementation
DMProjectPoint_Field_Privat

DMProjectFieldLocal: allow localU to be NULL

This is useful when a projection is defined entirely in terms of
coordinates and perhaps auxiliary fields. The implementation
DMProjectPoint_Field_Private looks like it was intended to support this
case (perhaps once did), so needed a minor update for localU=NULL.

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DM libCEED: fix analyzer lints

DMPlex: expose -dm_plex_shape zbox and document zbox/isoperiodicity

DMPlex SFC: optimize Z traversals using octet skips

Z-traversal cost is now negligible in all cases I can readily measure.

DMPlex: add Generate event for all the basic/internal mesh creation steps

Does not include interpolation, which is typically much more expensive,
unless interpolation is a mandatory part of creating

DMPlex: add Generate event for all the basic/internal mesh creation steps

Does not include interpolation, which is typically much more expensive,
unless interpolation is a mandatory part of creating the initial
topology. Does not include extrusion and similar transforms since those
have their own events.

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DMPlex SFC: Isoperiodic with partitioning/distribute support

* give all edges consistent orientation
* This ensures that edges are matched consistently. It's overkill, but we
trim that work an

DMPlex SFC: Isoperiodic with partitioning/distribute support

* give all edges consistent orientation
* This ensures that edges are matched consistently. It's overkill, but we
trim that work another time.
* isoperiodic face SF is migrated during DMDistribute
* tests/ex49: add command-line diagnostic and control of tensor ordering
* quash -Wmaybe-uninitialized false positives

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DMPlex SFC: periodicity working in serial

-dm_plex_box_sfc -dm_plex_box_bd periodic,none,none

* 1-element periodicity
* Single global representation of coordinates
* DMGlobalToLocal applies offset

DMPlex SFC: periodicity working in serial

-dm_plex_box_sfc -dm_plex_box_bd periodic,none,none

* 1-element periodicity
* Single global representation of coordinates
* DMGlobalToLocal applies offset to periodic points
* periodicity is only supported in one dimension at present

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DMPlex SFC: create face periodicity

This introduces a new DMPlexSetPeriodicFaceSF(), but does not yet use it
when creating global spaces.

DMPlex SFC: document assumptions and make utility a PetscFunction

DMPlex SFC: add "Face Sets" and normalize coordinate space

libCEED fluids examples run with this

ISLocalToGlobalMappingView: change output to clarify ranges for bs>1

DM: experimental box mesh in parallel using Z-order

Adding -dm_plex_box_sfc activates this feature. The elements are equally
partitioned and Z-order is used to identify vertices. A partitioner can
b

DM: experimental box mesh in parallel using Z-order

Adding -dm_plex_box_sfc activates this feature. The elements are equally
partitioned and Z-order is used to identify vertices. A partitioner can
be used to clean up, or use -dm_distribute 0 to keep the z-order
distribution.

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Plex ex1: Tests for hypercubic lattices

Plex: Add hypercubic lattices in any dimension

Merge remote-tracking branch 'origin/release'

Fix some typos

CGNS: implement batch size when using pattern file names

DMPlex libCEED: selected backend depends how libCEED is configured