Merge branch 'barry/propagate-pcsetup-failures'

Infrastructure that allows failures in PCSetUp(), PCApply(), MatMult() etc due to, for example a zero pivot or function evaluation outside its domain, to propagate up and become a KSP_DIVERGED inste

Infrastructure that allows failures in PCSetUp(), PCApply(), MatMult() etc due to, for example a zero pivot or function evaluation outside its domain, to propagate up and become a KSP_DIVERGED instead of generating an error that stops the program. In response to Issue 96. This includes failures in MatCreateSNESMF() applications due to domain errors. The mechanism to propagate some errors is by setting Info or Nan into the output vector and using the norm or inner product reductions in SNES or KSP to propagate the error condition to all processes and then handling them immediately after the norm or inner product.

This allows, for example, ODE integrators to try again with a smaller time-step if the PCSetUp failed instead of requiring a complete restart of the run with other options.

Currently some error conditions, such as function domain error in a line search may not get progated up using the correct SNESConvergedReason

See src/snes/examples/tests/ex69.c for the handling of several conditions

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Merge branch 'master' into knepley/feature-composable-callbacks

* master: (151 commits)
PetscMalloc: Fix handling of zero-sized allocations
add note to DMGetLocal/GlobalVector() about intended s

Merge branch 'master' into knepley/feature-composable-callbacks

* master: (151 commits)
PetscMalloc: Fix handling of zero-sized allocations
add note to DMGetLocal/GlobalVector() about intended short-time usage of the vectors.
sf: use patched openmpi tarball that has a potential fix for sf example hang
SNES problems that set VI bounds must use a VI solver since the other solvers ignore the bounds
pounders viewer did not cast PetscReal to double in printf nor use %D instead of %d
fix ts ex20adj
fix ts theta
fixed another variable declaration in the middle of a code block
example main() had PetscInt return type and argument that should be int
DMDAVTKWriteAll_VTS: Fix handling of higher-dimension coordinates
fixed example that declared variables in the middle of a function
C programs do not return PetscInt nor do they take an argument that is PetscInt, fixed example that did
You cannot declare variables in the middle of functions in PETSc.
add ierr checking to PetscOptionsBegin/End() in example
configure: add error check if user specifies PETSC_ARCH=-dbg [i.e starts with a '-']
scale norm of vector difference by norm of vector to insure it is small enough to consider the two vectors equal
missing PetscViewerDestroy() added
MatNestGetISs: use custom fortranstub to handle PETSC_NULL_OBJECT
update location of open-mx website on FAQ page
If the user sets bounds and calls a solver that does not support them, throw an error.
...

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Merge branch 'pr192/Fande-Kong/scalable-matincreaseoverlap/master' of https://bitbucket.org/petsc/petsc

Merged petsc/petsc into master

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

Conflicts:
src/ksp/pc/impls/bddc/bddcprivate.c
src/ksp/pc/impls/bddc/bddcscalingbasic.c
src/mat/impls/aij/mpi/mumps/mumps.c
s

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

Conflicts:
src/ksp/pc/impls/bddc/bddcprivate.c
src/ksp/pc/impls/bddc/bddcscalingbasic.c
src/mat/impls/aij/mpi/mumps/mumps.c
src/mat/impls/is/matis.h

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Merged master into semihozmen/ksp-fcg-eigen-comp-support

Merge branch 'master' into pr192/Fande-Kong/scalable-matincreaseoverlap/master

Needed to merge master to update to new calling sequence PetscCommBuildTwoSided

Merged petsc/petsc into master

Merge branch 'barry/fix-directory-layout'

updated PETSc directory layout to match standard packaging strategies

include/petsc finclude,private,mpiuni
lib/petsc conf
bin/petsc*

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/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 'tisaac/feature-fe-geom-dim' into tisaac/plex-flexible-projection

Use the new PetscFECellGeom

Conflicts:
include/petscdmplex.h
include/petscfe.h
src/dm/impls/plex/plexfem.c

Merge branch 'master' of bitbucket.org:petsc/petsc into mark/ex49-bs

Merge branch 'barry/docs-matblocksize'

MatGetVecs() and KSPGetVecs() replaced with MatCreateVecs() and KSPCreateVecs()
since they are creators not getters

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' into shri/ts-events

Conflicts:
src/ts/interface/ts.c

Merge branch 'master' into shri/feature-dm-circuit

Conflicts:
src/dm/impls/makefile

Merge branch 'master' into prbrune/snes-fascontinuation

Conflicts:
include/petscsnesfas.h

Merge branch 'master' into barry/wirth-fusion-materials
bad manual merge needs to be fixed
this is what happens when branches hang around too long

Conflicts:
src/ts/examples/tutorials/advection-dif

Merge branch 'master' into barry/wirth-fusion-materials
bad manual merge needs to be fixed
this is what happens when branches hang around too long

Conflicts:
src/ts/examples/tutorials/advection-diffusion-reaction/ex10.c

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Merge branch 'master' into knepley/feature-dmda-section

* master: (319 commits)
SNESGS: Fix for uninitialized variable warning in gssecant.c
DMPlex: Fix for orientation in Gmsh files - Fixed tes

Merge branch 'master' into knepley/feature-dmda-section

* master: (319 commits)
SNESGS: Fix for uninitialized variable warning in gssecant.c
DMPlex: Fix for orientation in Gmsh files - Fixed test output
do not use C99 struct initialization code in PETSc
Nightly Summary: Added time taken to each of the tests in the dashboard.
ASCII printing of floating point numbers must cast to (double) to support quad precision
configure: check fortranDatatypes only when fortran is enabled [this fixes configure crash with --with-fc=0]
don't use non-portable and also dependent on floating point precision system level math constants
picky compilers
fix a couple compiler warnings/errors (depending on compiler) for Matlab engine code
DMPlex: More fixup from bad rebase, moved to DMGet/SetCoordinateSection()
DM: Added DMGet/SetCoordinateSection()
Fuckup: Fix for merge that is still untangling bad rebase from Oct. 17th 2013 - Fixed const in declarations - Fixed merge from PetscFE - Fixed 2 mallocs
replace all echo in test/tutorial makefiles with printf since echo behaves differently on different systems
DMDA: Missing header - Damn rebase
DMPlex ex3: Added 2D Q_1 and 3D P_2 tests
DMDA: Added DMDAProjectFunction() and DMDAComputeL2Diff()
DMDA: Fixed 2D geometry - Should reuse DMPlex routines
DMDA: Fix bug in 2D closure operation for cells
DMDA: Make closure operations also return the size
DMDA: Changed DMDACreateSection() to emulate DMPlexCreateSection()
...

Conflicts:
config/builder.py
include/petscdmda.h
src/dm/dt/interface/dtfe.c
src/dm/impls/da/dageometry.c
src/dm/impls/da/dalocal.c
src/dm/impls/plex/plexgeometry.c

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