Memory allocation for vector and matrices, debugging through ex3.cxx.

1) Fixes for matrix allocation, especially for refined levels of the mesh.
2) Small fix for a bug when user provides Tag

Make use of the ParallelComm object and prepare it to generate the mesh
hierarchy in parallel

* Modifications to both examples and tests to conform to API changes
+ ex35: Refactoring to allow both

Make use of the ParallelComm object and prepare it to generate the mesh
hierarchy in parallel

* Modifications to both examples and tests to conform to API changes
+ ex35: Refactoring to allow both TRI and QUAD to be used for the problem of interest.
+ Several changes to clean up the MOAB based inhomogeneous Laplacian solver in
2-D (based on ATPESC 2014 version).
* Adding a new test for verifying the uniform mesh refinement capability exposed by DMMoab.
* Fix some memory corruption and leaks -- when user does not set fieldNames. Found through tests/ex3
* Reduction in memory footprint in DOF number storage. Can eventually remove usage of llmap,lgmap.
* Cleanup and more optimizations for DOF evaluations.

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Merge branch 'master' into knepley/feature-plex-pragmatic-parallel

* master: (1379 commits)
Minor fixes for tchem examples due to changes in PETSc infrastructure
update webpage about API changes

Merge branch 'master' into knepley/feature-plex-pragmatic-parallel

* master: (1379 commits)
Minor fixes for tchem examples due to changes in PETSc infrastructure
update webpage about API changes
add help menu for MatCreateSubMatricesMPI()
rename struct Mat_SubMat -> Mat_SubSppt
add a little information to the manual about using tchem
rename MatCreateSubMatrixComposite -> MatCreateSubMatrixVirtual; Mat_SubMatrix -> Mat_SubVirtual
need to protect the \ passed on the makefile on my Mac
Bib: Updated ref
update src/mat/examples/tests/output/ex23_#.out
rename MatGetSubMat -> MatCreateSubMat
Mark MatCreateMPIAIJWithSplitArrays() and MatMPIAIJSetPreallocationCSR() with MAT_NO_OFF_PROC_ENTRIES
superlu: libray is installed in PREFIX/lib64 - fix this to use PREFIX/lib
backport fixes cc105cc3 2b35c90a - required for 3bf428d - that was backported from master - 80c96bb
'echo -n' fails on opensolaris/osx - so avoid using it.
fix diffs in nightlybuilds due to options in ~/.petscrc
add Kelley03 to src/docs/tex/petsc.bib
build: determine moudles, mpi.h used during buildtime and print in 'info'
fix analyzer warnings
fix build failure on opensolaris - where -lm from flibs is removed due to -lm in cxxlibs. But then - only flib gets used for some configure tests [blaslapack, parms]
config: prefer __restrict over C99 restrict keyword
...

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Merge branch 'barry/minor-cleanup'

remove PETSC_NULL from moab interface. Add definition of PETSC_NULL back in since external packages use it.

Reported-by: nightly tests

Merge branch 'barry/remove-funct'

Remove the use and definition of __FUNCT__ throughout the code

Since all modern C/C++ compilers provide this functionality we no longer need to provide it manually in PETSc
Time: 1.5 hours
Thanks-t

Remove the use and definition of __FUNCT__ throughout the code

Since all modern C/C++ compilers provide this functionality we no longer need to provide it manually in PETSc
Time: 1.5 hours
Thanks-to: Andreas Mang <andreas@ices.utexas.edu>

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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 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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Merge branch 'barry/housekeeping-2'

replace uses of PetscMalloc() with PetscNew() or PetscMalloc1() where appropriate

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

Conflicts:
src/ksp/pc/impls/bddc/bddc.c
src/ksp/pc/impls/bddc/bddcgraph.c
src/ksp/pc/impls/bddc/bddcprivate.c
src/ksp/pc/imp

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

Conflicts:
src/ksp/pc/impls/bddc/bddc.c
src/ksp/pc/impls/bddc/bddcgraph.c
src/ksp/pc/impls/bddc/bddcprivate.c
src/ksp/pc/impls/bddc/bddcscalingbasic.c
src/ksp/pc/impls/bddc/bddcschurs.c
src/mat/impls/is/matis.c

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Merge branch 'master' into barry/add-pcfieldsplit-logevent

Merge branch 'master' into barry/add-pcreset-hypre-for-master

Needed to move PCDestroy_HYPRE() added to master to PCReset_HYPRE() since that was introduced
as a bug fix for maint

Merge branch 'master' into hongzh/checkpointing

Manual merges for a couple of PetscOptions changes in master

Merge branch 'master' into pr391/zianekhodja/lilia/tsirm/master

Merge branch 'tisaac/dm-label-promote' into tisaac/dmforest

* tisaac/dm-label-promote: (319 commits)
snes tutorial ex69: give mesh a name for regression purposes
DM: make DMLabel labels a part o

Merge branch 'tisaac/dm-label-promote' into tisaac/dmforest

* tisaac/dm-label-promote: (319 commits)
snes tutorial ex69: give mesh a name for regression purposes
DM: make DMLabel labels a part of all DMs
builder: update regression tests
builder: update some missing package requirements
DM: set coordinate vector name
ts tutorials ex11_sa: make it compile
mark variable as unused so compiler doesn't warn about unused value
configure: use 'git cat-file -e' to check for existance of a commit in localrepo. ['git rev-parse' does not give error for a hash thats not in repo]
petsc4py: revert to manually syncing petsc4py with petsc master changes
configure: revert gitcommit default value to Null. If a pacakge using giturl does not change this value - raise an error
fix: revert change in a44bcdf that breaks with pgf90
update test output for fixed to hypre interface that now actually pass the interp vectors to BoomerAMG
Error message should say use negative threshold value to prevent filtering out zeros
Calls to HYPRE_BoomerAMGSetInterpVectors() did not actually copy the vector data pointer from the PETSc vector to the hypre vector thus resulting in the hypre interp vectors being identically zero and hence not affecting the quality of the AMG hierarchy produced/
DMPlex: Silence overzealous compiler warnings
add row/col orientation to MatConvert_Elemental_Dense
fix formatting error in previous commit [broke nightlybuilds]
fix formating of TSTHETA manual page and add missing command line option
run hwloc with MPIEXEC and binding so it runs on the correct machine
fix: memory leaks [in valgrind test]
...

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Merge branch 'master' into barry-allow-vecset-nan-3.6

Merge branch 'stefano_zampini/feature-pardiso-schur' of https://bitbucket.org/petsc/petsc into stefano_zampini/feature-pardiso-schur

Merge remote-tracking branch 'petsc/master' into fix-pcgasm-reuse

Merge branch 'master' into knepley/fix-examples-plex

* master: (112 commits)
correct expression for implict ODE/DAE in table 11 of users manual
remove warning about deprecated MPI call in exampl

Merge branch 'master' into knepley/fix-examples-plex

* master: (112 commits)
correct expression for implict ODE/DAE in table 11 of users manual
remove warning about deprecated MPI call in examples
rm variables declared in middle of subroutine
tolerance for equality in PETSc test should depend on machine epsilon
tolerance for acccuracy in test example should depend on machine epsilon
increase convergence tolerance to get same result in single precision as double for convergence history
update no change output for gasm test which had not been properly updated
remove C++ // comment
example mistakenly used MPI_COMM_WORLD as if it was rank in print statement thus producing output only with MPI Uni
grep out name of DM object since on some systems the address printed has extra zeros thus producing a false difference in output
increase tolerance for test example
build: revert el6-4 build to cg - as el6 compilers give link errors
fix error type
insure similar convergence history for single, double, quad
fix ex104.c based on Barry's suggestion
increase example convergence tolerance to get matching convergence history in single and double precision
increase convergence tolerance so that test example has similar convergence history in single and double precisions
changed from cg to gmres for eigenestimator since in single precision cg produced a possible indefinite matrix report
change test example tolerance to depend on machine epsilon so as to give correct results in various precisions
loosen convergence tolerance to have similar convergence history with single, double, quad precisions
...

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Merge branch 'master' into shri/add-tsevent-to-powergrid-examples

Merge branch 'master' into stefano_zampini/feature-pardiso-schur

Branch got out of sync with master

Merge branch 'barry/add-mpiu_allreduce'

Merge branch 'master' into pr263/PierreBdR/ts-domain-error-in-stage/master