MatZeroRowsColumns_MPI(B)AIJ: avoid nrows*comm_size complexity

Switch from bad "trick" to short-circuited binary search.

MatZeroRows_MPI(B)AIJ: avoid communication when MAT_NO_OFF_PROC_ZERO_ROWS

This functionality existed prior to Matt's refactor to use PetscSF and
was considered useful to PFLOTRAN.

Reported-by: Glen

MatZeroRows_MPI(B)AIJ: avoid communication when MAT_NO_OFF_PROC_ZERO_ROWS

This functionality existed prior to Matt's refactor to use PetscSF and
was considered useful to PFLOTRAN.

Reported-by: Glenn Hammond <gehammo@sandia.gov>

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MatZeroRows_MPI(B)AIJ: avoid nrows*comm_size complexity

If the rows are in reverse order, the old implementation would linear
search the ownership ranges for each row. Use binary search instead.

Merge branch 'maint'

Merge branch 'hzhang/mataxpy-bugfix' into maint

reduce code duplication for MatAXPYGetPreallocation_MPIXXX()

bugfix for MatAXPY_ for mpibaij and mpisbaij

Merge branch 'barry/improve-pcamgcreategraph' into maint

Merge branch 'barry/improve-pcamgcreategraph'

improve the memory usage of PCGAMGCreateGraph()

Merge branch 'barry/fix-dmda-1d-mirror'

Mat doc: fix mismatches between Mat name and man page

Reported-by: Sven Heinrich <s.heinrich@tu-braunschweig.de>

Merged upstream/master to feature-dmmoab

Merge remote-tracking branch 'upstream/master'

Merge branch 'master' into prbrune/snes-fascontinuation

* master: (855 commits)
fix for moab example had wrong blocksize of mapping
docs:remove src/docs/doxygen/manual [per Barry's instructions]

Merge branch 'master' into prbrune/snes-fascontinuation

* master: (855 commits)
fix for moab example had wrong blocksize of mapping
docs:remove src/docs/doxygen/manual [per Barry's instructions]
gfortran: remove 132 char limit from f90 free-form
SNES: Set up matrix-free *after* copying the user Jacobian to snes->pc
DMPlex-Gmsh: Use trueNumCells when building the coordinate section
Sys: Got guard logic reversed
Sys: The #define guard for PetscMalloc*() must match the one for PetscFree*()
PetscFV: I hate fucking complex
removed ltog scatter from DMDA since functionality can be obtained with gtol scatter and less memory
fix test of DMLocalToGlobalBegin/End and add actual test cases
improve object memory logging for DA, ISLocalToGlobal and ISBLOCK
lower high water mark of constructing parallel scatter by allocating only as much room in svalues as needed
owner in VecScatter construction is the rank, therefor can use PetscMPIInt to hold it do not PetscInt
another reuse of allocated array in 2d/3d DMDA create
improved high water mark of DMDASetups by implementing and using PETSC_USE_POINTER for ISCreateBlock()
PetscFV: Another complex fix
DMPlex+TS: Fixing types
ISIdentity() was wrong for block IS! Indices are NOT scaled by bs
PetscFV: Straighten out complex types
TS ex11: Fix casts and remove unused variable
...

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Merge branch 'master' into barry/saws-options

Merge branch 'master' into stefano_zampini/pcbddc-multilevel-improvement

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

Merge branch 'master' into stefano_zampini/pcbddc-multilevel-improvement

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

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Merge branch 'master' of bitbucket.org:petsc/petsc

Merge branch 'jose/mataxpy-state'

* jose/mataxpy-state:
MatAXPY_Elemental: increment state
Increase object state in MatAXPY for all matrix formats
Increase state in MatHeaderReplace

Increase object state in MatAXPY for all matrix formats

Merge remote-tracking branch 'origin/master' into feature-dmmoab

Merged petsc/petsc into master

Merge branch 'barry/rm-null-values-to-matsetvalues'

removed limited support for passing NULL values pointer to MatSetValues() since it was implemented only by AIJ and never used.
Now all matrix types generate suitable error when values is null

Merge branch 'master' into knepley/feature-plex-hdf5-parallel-load

* master: (125 commits)
since PETSc cannot view factored matrices, generate an error rather than display the wrong stuff (this wa

Merge branch 'master' into knepley/feature-plex-hdf5-parallel-load

* master: (125 commits)
since PETSc cannot view factored matrices, generate an error rather than display the wrong stuff (this was really bad)
outdated example that doesn't match coding style removed and buggy
petscversion.h: workaround ifort -cpp lack of referential transparency
configure: ignore AR, MAKEFLAGS [if set in env]
incorrect first entry in array being zeroed in example
sizeof.c: remove dependence on petsc [and fix syntax error]
nightlybuilds: use consistant PETSC_ARCH, machine names
TS: Allow viewing of TS solutions
DMPlex: Fix comparison for complex
change MPIVersion streams to use MPI_Wtime() to be portable to Windows do not use scalar square root on real number; it upsets Microsoft
cannot use I in PETSc code because in complex it sometimes represents imaginary number cannot pass PetscScalar * to VecNorm()
in dashboard don't warn about SSL and BOI deprecated
TS ex11: Fixed output formatting
Doc+DMPlex: Added function documentation for some refinement functions
streams: translate code from 'bash' to 'sh' [fix freebsd]
barry is an idiot who doesn't have a clue as to what he is doing (and git's unfriendlyness doesn't help matters)
don't list examples under C that don't work with complex!
forgotten output file
removed valgrind warning about sending uninitialized data
nightly builds ignore unrecognized pragma and .c file as C++ code
...

Conflicts:
include/petsc-private/dmpleximpl.h

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