Merge branch 'stefano_zampini/feature-convert-matnest-matis' into stefano_zampini/feature-pcbddc-saddlepoint

I have to merge it here, since there's an API addition for MatIS in stefano_zampini/featu

Merge branch 'stefano_zampini/feature-convert-matnest-matis' into stefano_zampini/feature-pcbddc-saddlepoint

I have to merge it here, since there's an API addition for MatIS in stefano_zampini/feature-pcbddc-saddlepoint
that prevents me to smoothly merge stefano_zampini/feature-convert-matnest-matis into next.

This will also facilitate merging stefano_zampini/feature-pcbddc-saddlepoint into master

Conflicts:
src/docs/website/documentation/changes/dev.html

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Improvements to KSPGetConvergedReason() and SNESConvergedReason() manual pages

Time: .1 hours
Reported-by: Sebastien Gilles <sebastien.gilles@inria.fr>

Merge branch 'tisaac/sys-fix-realloc' into tisaac/petscfe-matching-quadrature-order

* tisaac/sys-fix-realloc: (71 commits)
Sys: fix PetscTrReallocDefault() and PetscReallocAlign()
clearify when

Merge branch 'tisaac/sys-fix-realloc' into tisaac/petscfe-matching-quadrature-order

* tisaac/sys-fix-realloc: (71 commits)
Sys: fix PetscTrReallocDefault() and PetscReallocAlign()
clearify when MatMkl_CPardisoSetCntl() can be used in the manual pages
Fixed manual page for -snes_anderson_beta
Update zfftf.c
remove Hermitian information from output since it is only produced in complex case and thus produces different test output
fixes for 64 bit integers in test example, fix uninitialized variable in test example
tests: move runex49 to TESTEXAMPLES_C_NOTSINGLE
add a PCView_SVD to show parameters
-petscpartitioner_type simple was not being picked up by options thus generating test error
missing CHKERRQ(ierr) on PetscPrintf() statements in newly added test example
PetscViewerVTK: Move DM reference increment into the VTK viewer and out of the DM implementation, as suggested by Jed Brown
missing crosslinks between manual pages
Updated 3.7 release notes to clearly indicate how to update usage of KSP/SNES/TS/SetMonitor(xxx,XXXMonitorDefault,NULL,NULL);
Fix for commit b6480e041dd2293a65f96222772d68cdb4ed6306 that broke this example
Example of factorization of a singular matrix may actually work due to round off
removed unused variables
matshell: clean up and add some new MATOPs to Fortran.
Remove unneeded checks for use of the compressed row for diagonal block of matrices in GAMG
ptscotch: update to version 6.0.4
ptscotch: fix buggy pthread detection code on Mac/Linux
...

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Merge branch 'maint'

Merge branch 'master' into barry/fix-successful-numerical-factorization-after-failure/master

The maint patch for the given problem cannot merge cleanly into next due to changes
in the same code in m

Merge branch 'master' into barry/fix-successful-numerical-factorization-after-failure/master

The maint patch for the given problem cannot merge cleanly into next due to changes
in the same code in master (the introduction of MatFactorGetError()) therefor need
to merge in master and use the new construct before merging to next

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Merge branch 'master' into psanan/pc-telescope-nearnullspace

clarify SNES solvers that default to left or only support left in manual pages

fix SNESSetNPCSide() manual page to indicate the right, not left is the default for most SNES solvers

Reported-by: Lul

clarify SNES solvers that default to left or only support left in manual pages

fix SNESSetNPCSide() manual page to indicate the right, not left is the default for most SNES solvers

Reported-by: Lulu Liu <lulu.liu@kaust.edu.sa>

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Merge branch 'master' into mark/snes-ex56

* master: (93 commits)
Web: Added a tutorial
typo
rename X -> U
sowing: update to version that creates manpage URLs for 'enum' types/values
Increa

Merge branch 'master' into mark/snes-ex56

* master: (93 commits)
Web: Added a tutorial
typo
rename X -> U
sowing: update to version that creates manpage URLs for 'enum' types/values
Increase patchlevel to 3.7.3
move runex3_3 to NOTSINGLE [ partial backport 9ed0bd76d5c329eb91401ebabfbd851446214e20 ]
DMPlex: local coordinate vector should be a sequential vector
DM: Name coordinate vectors in subdomain and restrict hooks
tests: disable a couple of TS examples from single precision tests
reduce TS ex12_2 output
fix PetscFormatRealArray() to cast PetscReal in print statement to double so works for __float128 precision
Vec: enable Fortran interfaces for VecGetLocalVectorRead and VecRestoreLocalVectorRead
Bib: Added refs
PCShell: man page fixes
update handling of latex in example code to use https
fix typo in isltog comment
test: Avoid conversion of object <-> function pointer type [-Wpedantic]
fortran: enable interface for VecGetLocalVector(), VecRestoreLocalVector()
update citation for cmz2016
PCBDDC: silent compilation warnings from nightlybuilds
...

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

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Merge branch 'barry/add-snes-divtol'

Merge branch 'maint'

Merge branch 'barry/fix-multiple-identical-monitors/maint' into maint

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

Conflicts:
src/docs/website/documentation/changes/dev.html
src/ksp/ksp/examples/tutorials/ex59.c
src/ksp/pc/impls/bddc/bddc.c

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

Conflicts:
src/docs/website/documentation/changes/dev.html
src/ksp/ksp/examples/tutorials/ex59.c
src/ksp/pc/impls/bddc/bddc.c
src/ksp/pc/impls/bddc/bddcfetidp.c
src/ksp/pc/impls/bddc/bddcprivate.c
src/ksp/pc/impls/bddc/bddcschurs.c
src/mat/impls/is/matis.c
src/mat/impls/is/matis.h

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add a divergence checker for SNES

Reported-by: Andrew Ho <andrewh0@uw.edu>

-xxx_monitor would result in multiple output of the same data if xxxSetFromOptions() was called multiple times

Time: 1 hour
Reported-by: Fande Kong <fande.kong@inl.gov>

Merge branch 'pr495/mapdes/snes-compute-final-residual-flag/master'

SNES: reset alwayscomputesfinalresidual in SNESReset

SNES: Add flag indicating if final residual is always computed

Although SNESSolve_XXX always updates the solution variable, it may not
be the case that the residual in vec_func is the residual at th

SNES: Add flag indicating if final residual is always computed

Although SNESSolve_XXX always updates the solution variable, it may not
be the case that the residual in vec_func is the residual at the new
solution. Track this behaviour explicitly for all concrete
implementations. We will use this in SNESSolve_FAS to determine if the
residual must be computed before transferring it between levels.

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Merge branch 'tisaac/ts-ex11-amr'

We now have an example (ts/examples/tutorials/ex11.c) where we can
use either DMPlex or DMP4est to handle adaptivity when time stepping.
We have tried to minimize t

Merge branch 'tisaac/ts-ex11-amr'

We now have an example (ts/examples/tutorials/ex11.c) where we can
use either DMPlex or DMP4est to handle adaptivity when time stepping.
We have tried to minimize the amount of code that is specialized to the
different DMs, and in the future more work can be done to improve this
interface.

* tisaac/ts-ex11-amr: (62 commits)
DMP4est: type fix
Plex: Fixes for analyzer
DMP4est: update snes ex12 regressions
DMPlex: fix parent/child interpolation with numFields > 0
DMP4est: also compute anyChange for uniformly refined/coarsened meshes
TS ex11: fix command line for AMR without computed gradients
TS ex11: remove gradient reconstruction from adaptivity requirements
DMPlexTree: some compilers want this var initialized
Plex: Changed Get/RestoreFaceFields() and Get/RestoreFaceGeometry() to return the number of active faces - This fixes a long-standing bad access in FV, although the values were never actually used.
DMPlexTS: removed unused variables
DMPlex/DMP4est: small fixes for next warnings and errors
SNES ex36 and ex52: These do not work anymore
DMPforestGetTransferSF_Point(): try to match parents
PetscViewerHDF5: destroy old file data if setting new filename
DMPlex + FV: remove leaky references in projection functions
Plex: Fixed incredibly stupid bug in Jacobian computation
PetscViewer HDF5: added get name method
DMPlexTree: do not skip out of child matrix loops early
PetscFV: correct field offsets when limiting gradients
DMP4estTree: ignore negative values when getting/setting vector values for transfer
...

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KSP, SNES: copy DM data regardless of dmAuto, like ts

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

Conflicts:
src/ksp/pc/impls/bddc/bddc.c
src/ksp/pc/impls/bddc/bddcprivate.c
src/mat/impls/aij/seq/mkl_pardiso/mkl_pardiso.c

Merge branch 'master' into barral/feature-dmplex-adapt

Merge branch 'jose/maint/tabs-print-class' into maint

Merge branch 'master' into knepley/feature-parallel-mesh-load

* master: (59 commits)
Increase patchlevel to 3.7.1
Fix manual page for MatGetTransposeNullSpace()
remove unneeded use of PetscCon

Merge branch 'master' into knepley/feature-parallel-mesh-load

* master: (59 commits)
Increase patchlevel to 3.7.1
Fix manual page for MatGetTransposeNullSpace()
remove unneeded use of PetscContainer to hold iscoloring in SNESComputeNGSDefaultSecant()
added SNESView for ngs, added options database to ngs manual page, removed dead routine
gcov: enable in mpiuni test
incorrect capitalization of an even name
force same number of iterations for output of ml example
changed output for ml example to not be machine dependent
DMP4est: access data after setup
SNESLineSearch_Apply was labeled with PETSC_EXTERN in one place but when declared this was not visible hence library build failed under Microsoft.
Example had print statements of complex numbers
Fix more errors in agmres for 64 bit integers
builds: fix nampespase conflict with 'analyzer-buid' and checkBuilds.py
gcov: add more packages to test
add a couple of KSP that were not represented in testing
gcov: enable more externalpackages for this test
fixes for agmres for 64 bit indices, fix for findvisibleprivatefunctions to be portable for Mac and Linux
get GAMG to get null space (more)
fix c++ compile errors
Add test example for kacmarz preconditioner since gcov indicated there was NONE
...

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Merge branch 'master' of bitbucket.org:petsc/petsc into mark/gamg-nullspacefix

Merge branch 'barry/fix-source-clang'