visibility: use PETSC_INTERN when possible

Hg-commit: 3b4bfb5c23843293f1f08790b48437080a32eb42

completed removing unneeded EXTERN_C_BEGIN/END from Mat directories and converting to PETSC_EXTERN_C for constructors
tested with and without dynamic with and without C++

Hg-commit: 7d27d7f4d9ea3bfe

completed removing unneeded EXTERN_C_BEGIN/END from Mat directories and converting to PETSC_EXTERN_C for constructors
tested with and without dynamic with and without C++

Hg-commit: 7d27d7f4d9ea3bfe6616fafdfb32d046b5db53a1

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Automerge.

Hg-commit: 2a552fd584bf855b9dc42efec9e8ab778063a84f

began removing extern "C" wrappers for functions passed to PetscObjectComposeFunction() and making appropriate ones static

Hg-commit: eef29051d7c47680850b22cd953238719c6b75fc

changed use of PetscObjectComposeFunctionDynamic() to PetscObjectComposeFunction() to allow use of static for functions for standard use in PETSc
PetscObjectComposeFunctionDynamic() is still availabl

changed use of PetscObjectComposeFunctionDynamic() to PetscObjectComposeFunction() to allow use of static for functions for standard use in PETSc
PetscObjectComposeFunctionDynamic() is still available for use if needed
also fixed calls to PetscObjectComposeFunction() to not wrap lines (per PETSc coding style)

Hg-commit: 822f9ddaac95a8ff6c2a9ad77fbf07d02d2c20d9

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PCFieldSplit: Use DM splits by default (-pc_fieldsplit_dm_splits)

This restores behavior prior to a4c26025de81ef1191090395e9a92f7db8b9e795

Hg-commit: 0d6dd37587df354bcca32cd7e84bc7e624e99bae

commit after merge

Hg-commit: d45994b710e27c421e3a611629d33b9d321ce16b

Split out petscdmdatypes.h and petscdmtypes.h

Hg-commit: 3f8f2ebaa036547d616a74a818868b81d0922c1f

Fieldsplit cannot force its algorithmic block structure on solution vectors

This problem shows up in snes ex19_8 which does

-pc_fieldsplit_block_size 2
-pc_fieldsplit_0_fields 0,1
-pc_fieldsp

Fieldsplit cannot force its algorithmic block structure on solution vectors

This problem shows up in snes ex19_8 which does

-pc_fieldsplit_block_size 2
-pc_fieldsplit_0_fields 0,1
-pc_fieldsplit_1_fields 0,1

even though the original system has data structure block
size 4. Although this particular set of options is contrived, I consider
it (and variants) to be valid and PCFieldSplit should work.

This reverts the change introduced in

398f06830ac9d0920f8d4e4d0bac972857d520d4

and modified (thus activating the error message) in

1b382c0c8a0048fa000c4641e30980e1ca800f19
Make fieldsplit only attempt to set vector block size when jac->bs > 0

Hg-commit: 85479e58af594607b0eeb3032c0aea35cfb6567e

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fieldsplit: tighten include and localize option

Hg-commit: 3c37663face6870fe5d2a905a337ab1a86f61cd0

added petscdrawtypes.h removed the typedef _xx* xx definitions from petscdraw.h and removed petscdraw.h from petscsys.h

Hg-commit: 01be7b4c0ac1e993b540535c319de45af820a255

Commit after merge.

Hg-commit: 3c23ecb14c0f43be48331e905ea49b292a15eb1b

Merge

Hg-commit: 5643807d8e581db8b9355ef7e8a511f49cff4c2a

converted in a bunch more PetscObjectComm() that I missed before

Hg-commit: a2a4fef7cd143b546baa5d5374a47a4ad76dd2d6

PCFieldSplit controls when to use DMCreateFieldDecomposition().

Hg-commit: a4c26025de81ef1191090395e9a92f7db8b9e795

added PetscObjectComm() and used it to replace (((PetscObject)obj)->comm)

Hg-commit: 3da37c458124ad48ae939f4e9823e4430ee0b8be

Make fieldsplit only attempt to set vector block size when jac->bs > 0

This fixes failing fieldpslit tests.

Original code introduced in 398f06830ac9d0920f8d4e4d0bac972857d520d4,
but did not use Vec

Make fieldsplit only attempt to set vector block size when jac->bs > 0

This fixes failing fieldpslit tests.

Original code introduced in 398f06830ac9d0920f8d4e4d0bac972857d520d4,
but did not use VecSetBlockSize, so the block size was not
validated. Barry replies:

I think this is to handle the case where the vectors were obtained
without the appropriate block size so the routines called below
cannot be work properly. Perhaps the code should be changed so that
the x and y bs are only set if the jac->bs is a legitimate value and
not when it is -1.

Hg-commit: 1b382c0c8a0048fa000c4641e30980e1ca800f19

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Merge branch 'private-impl-headers'

petsc-private/petscimpl.h and vecimpl.h are no longer included by
petscsys.h and petscvec.h. Some inline functions become normal functions
as a consequence of the

Merge branch 'private-impl-headers'

petsc-private/petscimpl.h and vecimpl.h are no longer included by
petscsys.h and petscvec.h. Some inline functions become normal functions
as a consequence of these changes.

Hg-commit: 5c59734726c7c41f493a5f5b9303cfab5c66ae21

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Add VecGetLayout() and remove some needless dependencies on vecimpl.h

Hg-commit: 0d0721e64fa8861a4e7168e2a936ca714ebeebcb

petscvec.h no longer includes petsc-private/vecimpl.h

This makes dependence on Vec internals more explicit. Almost all
impacted dependencies fall in two categories:

* reference to vec->map: could b

petscvec.h no longer includes petsc-private/vecimpl.h

This makes dependence on Vec internals more explicit. Almost all
impacted dependencies fall in two categories:

* reference to vec->map: could be eliminated by adding VecGetLayout(),
which is probably a good idea anyway.

* dependence on VecScatter_MPI_General: this is low-level anyway, so I
don't think there is much to gain by abstraction.

Hg-commit: 612ef938483b9f0137f3e95bc1d14775547d74f1

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commit after merge

Hg-commit: b866121248e9d560d266413f80c7be106860d974

Removing DMCreateDomainDecompositionDM and DMCreateFieldDecompositionDM.

Hg-commit: 5a40b47b72b8008daf1ed3dec805e07eb1831dde

removed PETSC_NULL from C and Fortran (except declaration in C for backward compatibility). Kept PETSC_NULL_xxx for Fortran
Fixed a few bugs where PETSC_NULL had been used incorrectly.

Hg-commit: 05

removed PETSC_NULL from C and Fortran (except declaration in C for backward compatibility). Kept PETSC_NULL_xxx for Fortran
Fixed a few bugs where PETSC_NULL had been used incorrectly.

Hg-commit: 054705a517d7f4388a8a084415d7478cbe95dff4

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Uncrustified src/ksp/pc/*

Hg-commit: b80b33e3b1d8943a898b18384bc7b2c1a3103a32

Reformatted: "Do not put a blank line immediately before PetscFunctionReturn;"

Hg-commit: c8a41c455986e732d0ea0513d7162a54daffaece