Merge branch 'jed/assembly-perf' into jed/mat-assembly-perf

Improve VecAssembly performance using BuildTwoSided

* jed/assembly-perf: (27 commits)
Vec: document when InsertMode cannot change betwe

Merge branch 'jed/assembly-perf' into jed/mat-assembly-perf

Improve VecAssembly performance using BuildTwoSided

* jed/assembly-perf: (27 commits)
Vec: document when InsertMode cannot change between reassemblies
VecAssembly BTS: allow reassembly with proper subsets of comm
BuildTwoSided: distinguish events BuildTwoSided vs BuildTwoSidedF
MPI: check for MPIX_Ibarrier (e.g., BG/Q)
VecAssembly BTS: enable by default, use -vec_assembly_bts 0 to disable
VecAssembly BTS: allow proper subsets with VEC_SUBSET_OFF_PROC_ENTRIES
VecAssembly BTS: VEC_SUBSET_OFF_PROC_ENTRIES elides global synchronization
VecAssembly BTS: elide sending empty scalar/block stashes
VecAssembly BTS: separate pending count for scalar and block stashes
VecAssembly BTS: use PetscCommBuildTwoSidedFReq and MPI_Waitsome
VecAssembly BTS: avoid copying data on receive by using pointer frames
Sys BuildTwoSidedFReq: generalization to return requests
VecAssembly: add more scalable implementation, -vec_assembly_bts
Vec_MPI: remove unused members conflated with VecStash
Sys: add PetscMergeMPIIntArray
Sys PetscMergeIntArrayPair: fix PetscFunctionBegin and comment
Sys BuildTwoSidedF_Ibarrier: less synchronous dynamic sparse data exchange
Sys BuildTwoSidedF: build two-sided network with functions in rendezvous
Sys BuildTwoSided test: extract datatype construction
Sys BuildTwoSided: update test for non-contiguous types and verbose output
...

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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 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 barry/xcode

BuildTwoSided: distinguish events BuildTwoSided vs BuildTwoSidedF

Sys: add event BuildTwoSided

Merge branch 'master' into knepley/feature-fem-dgspace

* master: (593 commits)
Bib: Added Top500 and fixed entry
fun3d: update PetscMallocValidate() usage
bib: rename ref with duplicate key

Merge branch 'master' into knepley/feature-fem-dgspace

* master: (593 commits)
Bib: Added Top500 and fixed entry
fun3d: update PetscMallocValidate() usage
bib: rename ref with duplicate key
Webpage: Corrected '-dm_mat_type cusp' to 'dm_mat_type aijcusp'.
Allow calling MatGetBlockSize[s]() before matrix preallocation
SNESLINESEARCHBT: Set the norms when exiting early due to negligible step.
SNESQN: only monitor real part of dot product (fails with C++ complex)
Corrected the #include statement in the man pages for the PetscObjectComposedDataSet/Getwhatever routines.
DMPlex: Added doc for DMPlexGetHybridBounds()
winzip: detect if winzip is used to extract petsc.tar.gz and error out.
configure: remove self.archIndependent as its not being used. [it is used to create externalpackages/package/arch dir which is unused]
configure: fix packages using package-dir/PETSC_ARCH as out-of-source-build location Perhaps this should be changed to package-dir/build?
configure: remove dead code previously used to download BuildSystem
configure: check if compilerDefines [and compilerFixes] exist in framework before using them
configure: save/restore reconfigure.py when --with-clean is used
configure: add --with-clean option to delete buildfiles/externalpackages in PETSC_DIR/PETSC_ARCH and potential externalpackages in --with-external-package-dir/PETSC_ARCH
configure: With --with-externalpackages-dir=dir store/build packages in dir/PETSC_ARCH
Add MatSeqSBAIJSetPreallocationCSR()
configure: switch to using PETSC_DIR/PETSC_ARCH/externalpackages by updating package.py to use externalpackages.py as the externalPackagesDirProvider
configure: move dead code configureExternalPackagesDir() from petscdir.py to externalpackagesdir.py Also set PETSC_DIR/PETSC_ARCH/externalpackages as the externalpackagesdir
...

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Merge branch 'master' into barry/saws

Conflicts:
src/ksp/pc/impls/gamg/gamg.c
src/sys/classes/viewer/impls/ams/ams.c
src/sys/objects/pinit.c

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

* master: (397 commits)
PetscSynchronizedFGets: fix deadlock at EOF
Compiler: Fix warnings from MPI impls which do not initialize outputs

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

* master: (397 commits)
PetscSynchronizedFGets: fix deadlock at EOF
Compiler: Fix warnings from MPI impls which do not initialize outputs
Increase patchlevel to 3.4.3
SNES: Now work vectors come from the DM
SNES ex62: Remove code generation
SNES: Move setup involving snes->vec_sol from SNESSetUp() to SNESolve()
Compiler: Fix warnings from MPI impls which do not initialize outputs
DMPlex ex7: Added missing test output
SNES ex52: Removed old Jacobian stuff, and fixed call to DMPlexProjectFunction() - Fixed calls for new element handling
SNES ex12: Added a performance profiling mode
DMPlex ex8: Fixed leak
PetscSection: Must reset the section when changing the number of fields
DMPlex ex7: Fixed test output - Corrected orientations in interpolation
DMPlex ex1: Fixed test output - Uniform refinement for quads changed
DMPlex: Fix overagressive checks
PC: Removed support graph PC
configure: both downloadonWindows and worksonWindows refer to MS compilers. Also fix isWindows() -> isWindows(CC).
MatXAIJSetPreallocation: use array[] notation to help out Fortran
__float128: when blas/lapack is not found instruct using f2cblaslapack
Configure: Package.downloadonWindows is supposed to mean that Windows compilers work. not Cygwin - Also changed doc for Package.worksonWindows, which does refer to Cygwin
...

Conflicts:
src/dm/impls/da/dalocal.c

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Merge branch 'master' into prbrune/mat-matcolor

Conflicts:
src/snes/interface/snesj2.c

Merge branch 'master' into knepley/feature-plex-refine-3d

* master: (149 commits)
Bib: Added papers referencing PETSc from ResearchGate
Bib: Fixed urls for some refs Suggested-by: Michele De Ste

Merge branch 'master' into knepley/feature-plex-refine-3d

* master: (149 commits)
Bib: Added papers referencing PETSc from ResearchGate
Bib: Fixed urls for some refs Suggested-by: Michele De Stefano
fixed bug that has appeared recently of false positive errors when there are zero local equations on coarse grids in gamg-agg.
MatSchurComplement: Must initialize KSP package
bib: fix inbook citation
Bib: Updated some refs
SNES: fix copy/paste in man page
fortran: fix KSPCONVERGEDDEFAULT and SNESCONVERGEDSKIP in fortran includes
Mat SBAIJ: avoid invalid memory read in MatSOR_SBAIJ
Revert "MatMPIBAIJSetPreallocationCSR() handled the input matrix entries incorrectly, it treated them as if each row of values"
PCGAMG: fix corruption for multiple solves when MatSetNearNullSpace is used
PCGAMG: remove distracting comment
KSP ex49: restrict near-null space for elasticity example with sym BC
MatMPIBAIJSetPreallocationCSR() handled the input matrix entries incorrectly, it treated them as if each row of values was provided ordered by row within the block rows instead of by block as it was originally designed to be. Also added more discussion to the manual pages on the expected order of the values
Fix accidental creation of the matrices in SNESNCG used for linear analogue LS.
PCGAMG: add man page for PCGAMGType
fortran: fix snesconvergedskip_() kspconvergedskip_() kspconvergeddefault*_()
rm //
Sys: new_ir changed from PetscInt to PetscObjectState - so fix mallocs to use the new type
SNES: Fixed package init in SNESLineSearchCreate()
...

Conflicts:
include/petscdmplex.h
src/dm/impls/plex/examples/tests/ex5.c
src/dm/impls/plex/plex.c
src/dm/interface/dm.c

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Merge branch 'jed/remove-dynamic-loading-option'

Option --with-dynamic-loading has been removed. Similar functionality
is available via the run-time option -dynamic_library_preload.

* jed/remove-d

Merge branch 'jed/remove-dynamic-loading-option'

Option --with-dynamic-loading has been removed. Similar functionality
is available via the run-time option -dynamic_library_preload.

* jed/remove-dynamic-loading-option:
Sys: PetscContainerCreate must call PetscSysInitializePackage
Remove --with-dynamic-loading / PETSC_USE_DYNAMIC_LIBRARIES

Conflicts:
src/dm/impls/mesh/mesh.c
src/dm/interface/dlregisdmdm.c
src/docs/website/documentation/changes/dev.html

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Merge branch 'master' into barry/wirth-fusion-materials

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

Remove --with-dynamic-loading / PETSC_USE_DYNAMIC_LIBRARIES

This option was mostly redundant because normal shared libraries satisfy
all the same needs. This commit adds the run-time option
-dynami

Remove --with-dynamic-loading / PETSC_USE_DYNAMIC_LIBRARIES

This option was mostly redundant because normal shared libraries satisfy
all the same needs. This commit adds the run-time option
-dynamic_library_preload that can be used to load/initialize all the
packages in advance, as used to be done when --with-dynamic-loading.

The PetscDLLibraryRegister_petscxxx functions have been kept, but are
not called unless -dynamic_library_preload is used. The petsc-dev
discussion, "Why --with-dynamic-loading?" did not reach consensus about
whether this was ever useful, so it may also be removable.

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Merged petsc/petsc into rmills/petsc master

Merge branch 'barry/rm-xxxregisterdynamic'

* barry/rm-xxxregisterdynamic:
Registration: remove stale 'XXRegisterDynamic)' entries in man pages
TS examples: fix use of PetscFunctionList and add t

Merge branch 'barry/rm-xxxregisterdynamic'

* barry/rm-xxxregisterdynamic:
Registration: remove stale 'XXRegisterDynamic)' entries in man pages
TS examples: fix use of PetscFunctionList and add to nightlies
Changes: Note updates to XRegisterDynamic/PetscObjectComposeFunctionDynamic
PetscObjectComposeFunctionDynamic: remove stale docs and usage
developers.tex: remove complications from function composition with dlls
removed string version of function name for XXXRegister(), PetscFunctionListAdd() and PetscObjectComposeFunction()
changes: document PetscFunctionListAdd() API change
developers.tex: update documentation of PetscObjectComposeFunction
removed path and MPI_Comm arguments from PetscFunctionListFind/Add()
removed path argument to XXXInitializePackage() and XXXRegister()
removed XXXRegisterDynamic() but kept the APIs for everything else underneath the same phase I of the update to handling registering function pointers

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Merge branch 'barry/rm-xxxregisterdynamic' into jed/ts-eimex

PetscObjectComposeFunctionDynamic() and TSRegisterDynamic() were
replaced by PetscObjectComposeFunction() and TSRegister(), both of which

Merge branch 'barry/rm-xxxregisterdynamic' into jed/ts-eimex

PetscObjectComposeFunctionDynamic() and TSRegisterDynamic() were
replaced by PetscObjectComposeFunction() and TSRegister(), both of which
drop the string name argument.

* barry/rm-xxxregisterdynamic: (82 commits)
...

Conflicts:
src/ts/interface/tsregall.c

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removed path argument to XXXInitializePackage() and XXXRegister()

Merge branch 'master' into jed/ts-eimex

Sync to include Git conversion, PETSC_EXTERN, and minor API changes.

Conflicts:
src/ts/interface/tsregall.c

Automerge.

Hg-commit: b6659d546870fb013f3da5bcd5066d1dc0dc329c

Merge branch 'master' of gitifyhg::ssh://hg@bitbucket.org/BarryFSmith/petsc-dev-simp

Symbol visibility and namespacing.

C++ builds always set extern "C" and can be called from plain C. Most
users w

Merge branch 'master' of gitifyhg::ssh://hg@bitbucket.org/BarryFSmith/petsc-dev-simp

Symbol visibility and namespacing.

C++ builds always set extern "C" and can be called from plain C. Most
users will only want --with-clanguage=C++ for std::complex.


Hg-commit: f848d02318cae92d7b32037c7ee88f92dbe46347

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Change all PETSC_EXTERN_C to PETSC_EXTERN

Hg-commit: 8d2ebbb193fb583bccc64015e35640c4e08c3426

Change all PETSC_EXTERN_C to PETSC_EXTERN


Hg-commit: ba0cf153561ff2dc521f42e94b7164fbe7b5d798

updated from EXTERN_C_BEGIN/END through sys directory

Hg-commit: ee6b7ef2f48ce66402e7e807302de19506ce15df