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

CHKERRQ() -> CHKERRMPI()

See merge request petsc/petsc!3637

CHKERRQ() -> CHKERRMPI()

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2021-01-11/fix-petschelpprintf-manualpage/release' into 'release'

Remove duplicate manual page for PetscHelpPrintf() and improve the material.

See merge request petsc/petsc!3553

Remove duplicate manual page for PetscHelpPrintf() and improve the material.

Commit-type: docs-only
/spend 15m

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 remote-tracking branch 'origin/release' into master

Merge branch 'jose/release/pgi-20.9-warnings' into 'release'

Fix warnings in NVIDIA compilers (formerly PGI)

See merge request petsc/petsc!3397

Fix warnings in NVIDIA compilers (formerly PGI): unreachable statement

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 branch 'rmills/doc-misc-small-fixes' into 'master'

Rmills/doc misc small fixes

See merge request petsc/petsc!2070

Added reference to PetscFormatConvert() in the PetscPrintf() manual page.

Merged in barry/cleanup-petscconf-h (pull request #1834)

Remove testing and inserting into petscconf.h items that are not actually used by PETSc

Remove testing and inserting into petscconf.h items that are not actually used by PETSc

1) PETSC_HAVE_LIBXXXX - which was rarely used
be careful with the package libpng and libjpeg since they hav

Remove testing and inserting into petscconf.h items that are not actually used by PETSc

1) PETSC_HAVE_LIBXXXX - which was rarely used
be careful with the package libpng and libjpeg since they have lib in the name of the package
2) various system include files that are never used or always exist: for example stdlib.h
3) various system functions that are never used or always exist
4) fixes for requires for MUMPS and SuperLU_DIST when dependent packages are installed or not installed (unrelated to the rest of this pull request)
5) packages that always exist such as PETSC_HAVE_BLASLAPACK, or are not used by PETSc such as PETSC_HAVE_NETCFD
6) remove a couple of uses of HAVE_LIB* in the code that were not needed by adjusting the configure code slightly
7) remove all the #if guards for each entry in petscconf.h since petscconf.h already has a guard and
the values are never defined else where the extra guards just make the file cluttered

For a build with about 10 external packages this reduced the size of petscconf.h from 1236 lines to 828/4 around 220 entries.

Commit-type: style-fix, cleanup

Reported-by: Jed Brown <jed@jedbrown.org

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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 petsc/petsc into master

Merge branch 'master' into knepley/feature-plex-functionals

* master: (984 commits)
netcdf: set zlib as optional dependency corretly [wrt --enable-netcdf-4] - otherwise netcdf configure errors out

Merge branch 'master' into knepley/feature-plex-functionals

* master: (984 commits)
netcdf: set zlib as optional dependency corretly [wrt --enable-netcdf-4] - otherwise netcdf configure errors out
fix gcov obj path
-options_table was changed to options_view in 2014 but documentation was not updated to reflect it
configure: fix F2003 test
Dev manual: remove duplicate entry
Plex test ex5: Removed "future" test, as it resulted in issues in the nightly tests.
Some minor typos in TS
Add ADIOS2.py which I forgot to git add in the past
Plex ex5: Disable test
Doc: Added note for interface change
KSPLSQRMonitorDefault fixed for quad precision
Tao: Added alternative output for chwirut2 test.
TS ex45,ex46: Removed overly refined tests for faster nightly tests.
KSP ex72: Fixed needlessly long-running PCTFS tests.
SNES ex56: Reduced test size to speed up nightly test suite.
KSPSolve_LSQR: don't compute unused norm of rhs
SNES ex13: Reduced problem sizes for nightly tests.
PetscOptionsDeprecated(): fix for NULL prefix
PetscOptionsDeprecated(): add option to print additional info
SNES ex12: Reduced sizes for BDDC tests.
...

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Merge branch 'master' into knepley/feature-plex-elasticity-test

* master: (1553 commits)
-options_table was changed to options_view in 2014 but documentation was not updated to reflect it
config

Merge branch 'master' into knepley/feature-plex-elasticity-test

* master: (1553 commits)
-options_table was changed to options_view in 2014 but documentation was not updated to reflect it
configure: fix F2003 test
Plex test ex5: Removed "future" test, as it resulted in issues in the nightly tests.
Some minor typos in TS
Add ADIOS2.py which I forgot to git add in the past
Plex ex5: Disable test
Doc: Added note for interface change
KSPLSQRMonitorDefault fixed for quad precision
Tao: Added alternative output for chwirut2 test.
TS ex45,ex46: Removed overly refined tests for faster nightly tests.
KSP ex72: Fixed needlessly long-running PCTFS tests.
SNES ex56: Reduced test size to speed up nightly test suite.
KSPSolve_LSQR: don't compute unused norm of rhs
SNES ex13: Reduced problem sizes for nightly tests.
PetscOptionsDeprecated(): fix for NULL prefix
PetscOptionsDeprecated(): add option to print additional info
SNES ex12: Reduced sizes for BDDC tests.
PetscFileRetrieve(): Suppress output to STDERR when downloading a file.
MatMatMult: Fixed unused variable pN.
DMDestroy: Guard call to dm->ops->destroy * Similar guards are in place in many other methods (IS,Vec,Mat) and permit the DM to be destroyed even if DMSetType() was never called.
...

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