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 branch 'jolivet/fix-incorrect-chkerrq' into 'master'

CHKERRQ() -> CHKERRMPI()

See merge request petsc/petsc!3637

CHKERRQ() -> CHKERRMPI()

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 'release'

Merge branch 'barry/2020-11-10/add-matlab-engine-host' into 'master'

Barry/2020 11 10/add matlab engine host

See merge request petsc/petsc!3443

Merge branch 'barry/2020-11-22/add-draw-set-save-fortran/release' into 'release'

Add Fortran PetscDrawSetSaveFinalImage PetscDrawSetSave

See merge request petsc/petsc!3430

Add better error handling for PETSC_VIEWER_XXX_(), results in clearer error messages

Commit-type: error-checking
/spend 30m

Pass PetscDrawSetSave() and PetscDrawSetSaveFinalImage() to PetscViewerGetSubViewer_Draw()

Otherwise MatView() on parallel matrices, for example, will not generate an image file

Commit-type: bug-fi

Pass PetscDrawSetSave() and PetscDrawSetSaveFinalImage() to PetscViewerGetSubViewer_Draw()

Otherwise MatView() on parallel matrices, for example, will not generate an image file

Commit-type: bug-fix
/spend 30m
Reported-by: Frank Bramkamp <bramkamp@nsc.liu.se>

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Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc

Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc!3064

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Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

Commit-type: portability-fix, testing-fix, style-fix, feature, maintainability
/spend 1.5h

Merge branch 'jolivet/fix-more-typos' into 'master'

Fix more typos and add missing examples

See merge request petsc/petsc!2511

Fix more typos and add missing examples

Merge branch 'dalcinl/fix-null' into 'master'

Sys: Replace 0 -> NULL for pointers

See merge request petsc/petsc!2482

Sys: Replace 0 -> NULL for pointers

Merge remote-tracking branch 'origin/barry/add-petscarrayxxx-ops' [PR #1771]

Add PetscArraycmp(), PetscArraycpy(), PetscArrayzero(), PetscArraymove(), update code to use new forms

Replace a couple multi-mallocs with a single malloc
Replace backwards loops in MatSetValues_*()

Add PetscArraycmp(), PetscArraycpy(), PetscArrayzero(), PetscArraymove(), update code to use new forms

Replace a couple multi-mallocs with a single malloc
Replace backwards loops in MatSetValues_*() with PetscArraymove()

Commit-type: style-fix, feature

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Merged in barry/update-collective-on (pull request #1744)

Update the use of Collective on in the manual pages to reflect the new style

Update the use of Collective on in the manual pages to reflect the new style

Commit-type: style-fix, documentation
Thanks-to: Patrick Sanan <patrick.sanan@gmail.com>

Merge remote-tracking branch 'origin/psanan/docs-remove-manconcepts' [PR #1733]

Man pages: remove Concepts: fields

These fields were previously stripped from the man pages by logic removed in
21a59cba2737d49dc2f0bd12c08db0d2a3f3f209

Remove these fields from all man pages (but

Man pages: remove Concepts: fields

These fields were previously stripped from the man pages by logic removed in
21a59cba2737d49dc2f0bd12c08db0d2a3f3f209

Remove these fields from all man pages (but not from examples).

This is accomplished with GNU sed (gsed on OS X), with the following commands.
*Warning* that this type of command can corrupt a .git directory,
so be cautious in reusing or modifying these commands. They first look
for and delete matching lines with a following line consisting of only whitespace,
and then delete any remaining matching lines.

find src -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/ {N; /\n\s*$/d}' {} +
find src -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/d' {} +
find include -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/ {N; /\n\s*$/d}' {} +
find include -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/d' {} +

Hints on the sed command obtained from: https://unix.stackexchange.com/questions/100754/how-to-delete-a-specific-line-and-the-following-blank-line-using-gnu-sed

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Merged in barry/minor-getsubviewer-docs (pull request #1624)

Minor updates PetscViewerGetSubViewer(), error checking, docs

Approved-by: Václav Hapla <vaclav.hapla@erdw.ethz.ch>

Minor updates PetscViewerGetSubViewer(), error checking, docs

Commit-type: testing-fix, documentation

Merge branch 'master' into jpusztay/feature-swarm-symplectic-example