add PetscAssert() and PetscAssertFalse()

Merge branch 'jacobf/2021-12-09/attribute-format-mat' into 'main'

Feature: Attribute Format - Mat

See merge request petsc/petsc!4634

remove trailing newline from SETERRQ

Merge remote-tracking branch 'origin/jose/fix-manpages'

Fix manpages to avoid errors reported by doctext

See merge request petsc/petsc!4309

Fix manpages: more errors reported by doctext

Merge branch 'jose/spelling-errors' into 'main'

Fix many spelling errors in manpages and comments

See merge request petsc/petsc!4283

Fix spelling errors in manpages and comments

Merge branch 'bourdin/plexnatural-memory-leak' into 'main'

plexnatural: fixed 2 memory leaks

See merge request petsc/petsc!3785

plexnatural: fixed 2 memory leaks

Merge branch 'jczhang/sf-change-api' into 'main'

Change some SF APIs mentioned in the ECP paper

See merge request petsc/petsc!3659

SF: add an MPI_Op argument to SFBcast

Merge branch 'amarboeuf/dmplex-createglobaltonaturalsf' into 'master'

ComponentName: modification of DMPlexCreateGlobalToNaturalSF

See merge request petsc/petsc!3572

ComponentName: modification of DMPlexCreateGlobalToNaturalSF

The modification of DMPlexCreateGlobaltoNaturalSF allows to pass NULL as an argument
for the sequential section when calling the routine.

ComponentName: modification of DMPlexCreateGlobalToNaturalSF

The modification of DMPlexCreateGlobaltoNaturalSF allows to pass NULL as an argument
for the sequential section when calling the routine. The interface hasn't change. It takes
into account that a DM can be distributed with DMPlexDistribute just after its creation.
In that case, sfNatural cannot be computed in DMPlexDistribute since no section is defined on the DM
at that moment. The user should then call DMPlexCreateGlobaltoNaturalSF after a section is set to the
parallel DM in order to compute the sfNatural. Instead of computing the sequential section needed for
DMPlexCreateGlobaltoNaturalSF, he can now pass NULL as an argument for the section and it is reconstructed
from the parallel section in the routine.
Error messages are slightly modified in all routines of plexnatural.c when the naturalSF is not present and
useNatural is set to TRUE. It mentioned now that a section has to be defined for the naturalSF to be computed.
TODO: since DMPlexCreateGlobaltoNaturalSF is not typically called by the user, automatically call it as soon
as useNatural is TRUE, the DM has been distributed and a section is present.
No failed test when running all dm tests locally after the modification.

Reported-by: Blaise Bourdin <bourdin@lsu.edu>
Thanks-to: Blaise Bourdin <bourdin@lsu.edu>

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Merge branch 'knepley/fix-plex-g2n' into 'master'

Plex: Fixed serial fallback for GlobalToNatural

See merge request petsc/petsc!3560

Plex: Fixed serial fallback for GlobalToNatural

Merge branch 'barry/2020-10-08/fix-mpi-error-codes' into 'master'

Convert MPI error type to PETSc error with string message for all MPI calls

See merge request petsc/petsc!3326

Convert MPI error type to PETSc error with string message for all MPI calls

Now PETSc examples will ONLY return PETSc error codes and never MPI error codes directly so we can understand and post-pro

Convert MPI error type to PETSc error with string message for all MPI calls

Now PETSc examples will ONLY return PETSc error codes and never MPI error codes directly so we can understand and post-process their
errors better.

The test harness will now automatically retry tests that fail with MPI, this may help with Intel MPI that produces
seemingly random failures.

Commit-type: error-checking
/spend 30m

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Merge branch 'knepley/fix-dm-g2n-serial' into 'master'

DM: Handle serial case for Global-to-Natural mapping

See merge request petsc/petsc!2474

DM: Handle serial case for Global-to-Natural mapping

Merge branch 'master' into 'stefanozampini/sfwin-reuse-win'

# Conflicts:
# config/BuildSystem/config/packages/MPI.py

Merge remote-tracking branch 'origin/maint'

Merge branch 'jolivet/fix-double-chkerrq' into 'maint'

Double CHKERRQ

See merge request petsc/petsc!2427

Double CHKERRQ

Merge branch 'jed/deprecate-dmgetdefaultsection' [PR #1969]

* jed/deprecate-dmgetdefaultsection:
DMGetDefaultSection et al: add PETSC_DEPRECATED_FUNCTION
These functions were deprecated in v3.9, but

Merge branch 'jed/deprecate-dmgetdefaultsection' [PR #1969]

* jed/deprecate-dmgetdefaultsection:
DMGetDefaultSection et al: add PETSC_DEPRECATED_FUNCTION
These functions were deprecated in v3.9, but no PETSC_DEPRECATED_FUNCTION was added at that time so many uses crept back into the source code. Here we mark it deprecated and fix all existing uses in PETSc.

DMGetLocalSection/DMSetLocalSection: add explicit names for DMGetSection/DMSetSection
These names are for symmetry with DMGetLocalVector() versus DMGetGlobalVector().

DMGetSection: replace all internal usage with DMGetLocalSection
Same for DMSetSection -> DMSetLocalSection. We retain the interface for DMGetSection/DMSetSection without deprecation warnings (for now).

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DMGetSection: replace all internal usage with DMGetLocalSection

Same for DMSetSection -> DMSetLocalSection. We retain the interface
for DMGetSection/DMSetSection without deprecation warnings (for n

DMGetSection: replace all internal usage with DMGetLocalSection

Same for DMSetSection -> DMSetLocalSection. We retain the interface
for DMGetSection/DMSetSection without deprecation warnings (for now).

Suggested-by: Barry Smith <bsmith@mcs.anl.gov>

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