Merge branch 'jacobf/2021-03-26/clang-static-linter' into 'main'

Feature: libClang PETSc Macro Static Analyzer

See merge request petsc/petsc!3773

Linter using libClang that checks PetscValidHeaderSpecifcType, PetscValidHeaderSpecific, PetscValidHeader, PetscValid[XXX]Pointer, PetscValidType, PetscCheckSameComm, PetscValidLogicalCollectiveXXX f

Linter using libClang that checks PetscValidHeaderSpecifcType, PetscValidHeaderSpecific, PetscValidHeader, PetscValid[XXX]Pointer, PetscValidType, PetscCheckSameComm, PetscValidLogicalCollectiveXXX for validity. Automatically generates diff files for problems with a known solution.

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Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2021-04-02/docs-unknown-nonzero-pattern/release' into 'release'

Update docs for MatStructure enum values and add missing support to petsc4py...

See merge request petsc/petsc!3809

Merge remote-tracking branch 'origin/release'

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

Documentation fixes

See merge request petsc/petsc!3851

Documentation fixes

Merge remote-tracking branch 'origin/barry/2021-03-28/fix-mpiu-allreduce-mpi-failure'

Fix capture of MPI error code in MPIU_Allreduce()

See merge request petsc/petsc!3777

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-minor-improvements' into 'release'

Minor improvements

See merge request petsc/petsc!3829

Minor improvements

All MPIU_ functions except MPIU_File return MPI error codes for checking

Update checkbadSource to find use of CHKERRQ with MPIU_ functions

Commit-type: i.e. error-checking, optimization, bug-fix, p

All MPIU_ functions except MPIU_File return MPI error codes for checking

Update checkbadSource to find use of CHKERRQ with MPIU_ functions

Commit-type: i.e. error-checking, optimization, bug-fix, portability-fix, testing-fix, style-fix, feature, documentation, example
Funded-by:
Project:
Time: hours
Reported-by:
Thanks-to:
Development Tools: Vim, Emacs, Eclipse

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Update docs for MatStructure enum values and add missing support to petsc4py for UNKNOWN_NONERO_PATTERN

Commit-type: documentation, enhancement
/spend 35m

Merge branch 'barry/2021-03-16/mat-factor-get-can-use-ordering' into 'main'

Change MatFactorGetUseOrdering() to MatFactorGetCanUseOrdering()

See merge request petsc/petsc!3739

Introduce PCFactorSetDefaultOrdering_Factor() to allow each factorization package
to indicate its preferered ordering, which may be external (its own) or one of PETSc.

This also affects factorizatio

Introduce PCFactorSetDefaultOrdering_Factor() to allow each factorization package
to indicate its preferered ordering, which may be external (its own) or one of PETSc.

This also affects factorization like dense PETsc where the ordering passed in by PETSc is ignored and not needed.

Also fixed options for MUMPS and SuiteSparse where users needed to pass a particular options database option
to the package (MUMP or KLU) indicating they should use the PETSc provided ordering. Now if the PETSc provided ordering is provided
these packages automatically use them without need a special option. This simplifies ordering usage for external packages

Commit-type: optimization, bug-fix, testing-fix, style-fix
/spend 6h

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Change MatFactorGetUseOrdering() to MatFactorGetCanUseOrdering()

We need to distinquish whether the package can use an external ordering and if that is desirable (the internal ordering may be faster

Change MatFactorGetUseOrdering() to MatFactorGetCanUseOrdering()

We need to distinquish whether the package can use an external ordering and if that is desirable (the internal ordering may be faster).

Commit-type: style-fix
/spend 15m

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doc fixes

Merge branch 'jczhang/fix-fortran-object-reinit' into 'main'

Fortran: re-init destroyed petsc objects so that they are different from null objects

See merge request petsc/petsc!3786

Fortran: re-init destroyed petsc objects so that they are different from null objects

Reported-by: Jose E. Roman <jroman@dsic.upv.es>

Merge branch 'knepley-main-patch-18403' into 'main'

Fixed loop bound

See merge request petsc/petsc!3768

Fixed loop bound
Reported-by: Lawrence Mitchell <lawrence.mitchell@durham.ac.uk>

Merge branch 'jolivet/feature-before-release-fixes' into 'main'

fixes and updates before new release

See merge request petsc/petsc!3712

MatPermute(): check for the same communicator

Merge branch 'stefanozampini/pcmg-matapply' into 'main'

PCMG matapply

See merge request petsc/petsc!3717

PCMG: add support for PCMatApply