should be max of all processors not sum

Buffer space used for loading dense matrix from file was too small when first process didn't have largest part of the matrix
also simplified the MatLoad_MPIDense() code slightly

Mat: in MPIdense matrices avoid having to assemble in case of user-provided array

Merge branch 'barry/optimize-matshift'

Cannot assume that MatSetUp() has been called on dense matrix which has been passed
into MatLoad()

Merge branch 'master' into knepley/feature-viewer-partial-read

* master: (48 commits)
ViennaCL: Fixes memory leak when destructing an aijviennacl matrix.
MatLoad_MPIDense() always allocated arra

Merge branch 'master' into knepley/feature-viewer-partial-read

* master: (48 commits)
ViennaCL: Fixes memory leak when destructing an aijviennacl matrix.
MatLoad_MPIDense() always allocated array space even if it was previously provided
Clarified lumping options for PCFieldSplitSchurPreType SELFP.
fixed up PetscInfo in GAMG
TSErrorWeightedNorm[2|Infinity]: API changes
MatLoad_SeqDense() always allocated new space for the data even if the user already provided it
Fixed DMCompositeGetAccessArray() to support readonly vectors
Fix obviously-wrong aspects of documentation on SNESVINEWTONRSLS and SNESVINEWTONSSLS.
fixed example to compile - demonstrates a bug
var name 'len' was F90 key word
For user provided Jacobian functions they should always assembly into the second matrix, the one from which the preconditioner is built because the first may be used as matrix-free with -snes_mf_operator
Suggest --with-64-bit-indices if users mistakenly use --with-64bit-indices
Fix configure logging of integer size.
missing underscore in #define of vecgetarrayread translation of fortran stub for VECGETARRAYREAD
updated test output files to reflect differences introduced previously in PCView output
-ksp_type preonly does not support -ksp_monitor_short so remove from test line to prevent extranious warning output
missing CHKERRQ; and ugly double declaration of ierr
Plex: Reorganized PlexPoint interface - Added DMPlexGetPointLocalField() and DMPlexGetPointGlobalField() - Now the DMPlexGetLocalOffset*_Private() functions return start and end - Uniformly use private functions
Plex: Put in explicit cast
MatSetValuesMPISBAIJ will now print correct global indices when error generated due to new nonzero location
...

# 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
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Merge branch 'master' into tisaac/dmforest

If we're going to start developing on this again, the recent changes to the
location of configuration files will make it annoying to switch to and from
thi

Merge branch 'master' into tisaac/dmforest

If we're going to start developing on this again, the recent changes to the
location of configuration files will make it annoying to switch to and from
this branch. Matt's and my fixes in DMPlex will also be relevant.

* master: (1557 commits)
MatLoad_MPIDense() always allocated array space even if it was previously provided
Clarified lumping options for PCFieldSplitSchurPreType SELFP.
fixed up PetscInfo in GAMG
TSErrorWeightedNorm[2|Infinity]: API changes
MatLoad_SeqDense() always allocated new space for the data even if the user already provided it
Fixed DMCompositeGetAccessArray() to support readonly vectors
Fix obviously-wrong aspects of documentation on SNESVINEWTONRSLS and SNESVINEWTONSSLS.
fixed example to compile - demonstrates a bug
var name 'len' was F90 key word
For user provided Jacobian functions they should always assembly into the second matrix, the one from which the preconditioner is built because the first may be used as matrix-free with -snes_mf_operator
Suggest --with-64-bit-indices if users mistakenly use --with-64bit-indices
Fix configure logging of integer size.
missing underscore in #define of vecgetarrayread translation of fortran stub for VECGETARRAYREAD
updated test output files to reflect differences introduced previously in PCView output
-ksp_type preonly does not support -ksp_monitor_short so remove from test line to prevent extranious warning output
missing CHKERRQ; and ugly double declaration of ierr
Plex ex3: For want of a semicolon, the kingdom was lost
MatSetValuesMPISBAIJ will now print correct global indices when error generated due to new nonzero location
completed basic use of MatSetValuesBlocked_SeqBAIJ_Inlined() by MatSetValuesBlocked_MPIBAIJ() to allow proper global indices being printed when error generated by new nonzero locations.
Added inline version of MatSetValuesBlocked_SeqBAIJ() to be used by MatSetValuesBlocked_MPIBAIJ() to print error message for nonzero block with global indices
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Optimized MatShift() for a completely empty matrix since this is commonly used with SLEPc to produce diagonal matrices

Reported-by: Jose Roman <jroman@dsic.upv.es>

MatLoad_MPIDense() always allocated array space even if it was previously provided

Contributed-by: Alejandro Lamas <alejandro.lamas@dsic.upv.es>

Merge branch 'master' into shri/ts-is-for-differential-variables

Conflicts:
include/petsc-private/tsimpl.h
src/ts/impls/eimex/eimex.c
src/ts/interface/ts.c

Merge branch 'master' into jed/chem
Note merging a branch with good stuff in it for a year and a half is insane!

Conflicts:
src/ts/examples/tutorials/makefile
src/ts/interface/ts.c

Merge branch 'master' into barry/clean-gamg

Need updates to KSPCHEBYSHEV since I will be adding to them

MatLoad_ and VecLoad_ routines that use options database information from the binary file .info files need to PetscViewerSetUp() before accessing the options database because the "lazy" setup of bina

MatLoad_ and VecLoad_ routines that use options database information from the binary file .info files need to PetscViewerSetUp() before accessing the options database because the "lazy" setup of binary viewers defered the opening of the files until binary reading was first done which was after the calls to determine matrix and vector block sizes.

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Merge branch 'master' into stefano_zampini/pcbddc-adaptive-selection

Merge branch 'master' into knepley/feature-harmonic-advection

* master: (205 commits)
Bib: Added bio refs
Don't print SAWs URL since it disturbs all the test output
missing (double) cast in pr

Merge branch 'master' into knepley/feature-harmonic-advection

* master: (205 commits)
Bib: Added bio refs
Don't print SAWs URL since it disturbs all the test output
missing (double) cast in print statement
don't output to test file all 12 digits of values
fixes and additions to SNESQM manual pages
PetscViewerBinaryGetDescriptor() is now a collective and must be treated as such fixed some calls to PetscViewerBinarySetUseMPIIO() removed some test runs that take too long
removed dead routine
ViennaCL: Added MCS download mirror URL for version 1.6.2
shift order of processing options for TS to be compatiable with SAWs Fix options handling for SAWs to duplicate array that previously was deleted too soon for SAWs processing
remove some dead code for AD and old AMS java and Matlab utilities
add missing PetscFunctionBegin; that messed up displaying of stack
Viewer: Fixed PetscViewerBinarySetUseMPIIO() in some examples
removed unused variables, removed dead code from AMS
git is so freaking annoying I accidently made a bunch of updates in next which I pushed lets see if this diff makes the same changes in my branch Why can't git just forbid me to make changes or next or set up some utility to prevent it!
moved saws directory to proper share directory location updated source to point to it.
rm checkboxes at top of pcoptions.html (ugly and not useful) and centered display of solver
PetscOptionsObject->prefix was freed before using in SAWs post processing hence SAWs was unable to change any type which had a prefix
display URL to point to to access SAWs server
missing break in case for handling string arguments better description for Options database option handling
removed extern PC_CLASSID and KSP_CLASSID that don't belong in petscoptions.h
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MatAssembly: move check for InsertMode consistency into MatStashScatter impls

The BTS implementation now encodes InsertMode in-band to avoid another
set of messages for MAT_SUBSET_OFF_PROC_ENTRIES.

MatAssembly: move check for InsertMode consistency into MatStashScatter impls

The BTS implementation now encodes InsertMode in-band to avoid another
set of messages for MAT_SUBSET_OFF_PROC_ENTRIES. It does the reduction
in debug mode for better error reporting.

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Merge branch 'knepley/fix-mpiio-flag'

PetscViewerBinaryGetDescriptor() is now a collective and must be treated as such
fixed some calls to PetscViewerBinarySetUseMPIIO()
removed some test runs that take too long

Merge branch 'master' into stefano_zampini/pcbddc-adaptive-selection

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

Merge branch 'master' into barry/saws-options-merge-master

Totally confusing manual merge, could be wrong

Conflicts:
include/petscoptions.h
src/dm/impls/da/dacreate.c
src/sys/objects/aoptions.c

Merge branch 'master' into barry/saws-options-merge-master

Totally confusing manual merge, could be wrong

Conflicts:
include/petscoptions.h
src/dm/impls/da/dacreate.c
src/sys/objects/aoptions.c
src/sys/threadcomm/interface/threadcomm.c

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Merge branch 'master' into pr252/dmay/PetscViewerBinarySkipHeaderVecViewLoad
Manual merge of makefile

Conflicts:
src/sys/classes/viewer/examples/tutorials/makefile

Merge branch 'hzhang/elemental-matconvert'

Conflicts:
src/mat/examples/tests/makefile

trivial cleanup

bugfix for MatConvert_MPIDense_Elemental(); add ex173.c for testing Matload()+MatCovnert()

Merge branch 'barry/remove-unneeded-paren-petscmalloc'

Conflicts:
src/mat/impls/baij/seq/baij.c