TS: Refactor TSStep() and TSRollBack()

* TSStep() handles the step counter increment, and not TSStep_XXX().
* TSRollBack() handles the step counter decrement.
* Removed ``time_step_prev`` from the T

TS: Refactor TSStep() and TSRollBack()

* TSStep() handles the step counter increment, and not TSStep_XXX().
* TSRollBack() handles the step counter decrement.
* Removed ``time_step_prev`` from the TS structure. New code should use
ts->ptime - ts->ptime_prev to determine the previous time step size.
* Removed unused ``time_step_orig`` from the TS structure.
* Removed unused ``time_step_since_decrease`` from the TS structure.
* Minor update bouncing ball test examples.
* Regenerate some test examples output.

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Merged in dalcinl/fix-ts-declarations (pull request #450)

TS: Fix function declarations and visibility

TS: Fix function declarations and visibility

* Most of these fixes where spotted by GCC -Wmissing-declarations

Merged in dalcinl/fix-tsadapt (pull request #441)

TSAdapt and related improvements

TSAdapt: Rework implementation

* Simplify handling of TSAdapt in TSALPHA
* Remove broken adaptivity in TSTHETA and use the same backward difference
aproach from TSALPHA
* Update TSEULER to use TSA

TSAdapt: Rework implementation

* Simplify handling of TSAdapt in TSALPHA
* Remove broken adaptivity in TSTHETA and use the same backward difference
aproach from TSALPHA
* Update TSEULER to use TSAdapt (TODO: rejections and adaptivity)
* Update TSSSP to use TSAdapt (TODO: rejections and adaptivity)

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TS: Move calls to TSPreStep() from implementation to interface

* Make the semantics symmetric with TSPostStep()
* Handle rolled back steps appropriately
* If a callback is ever needed to run at the

TS: Move calls to TSPreStep() from implementation to interface

* Make the semantics symmetric with TSPostStep()
* Handle rolled back steps appropriately
* If a callback is ever needed to run at the begining of each TSStep()
(including rolled back steps and step rejections), we can add a new API
to support this particular need (BTW, patches welcome!)

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Merge branch 'tisaac/dmforest' into mlange/fix-plex-multi-level-overlap

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 remote-tracking branch 'origin/knepley/fix-plex-test-partitions' into tisaac/dmforest

* origin/knepley/fix-plex-test-partitions: (151 commits)
Plex ex5: Provide test partitions
Plex ex4: P

Merge remote-tracking branch 'origin/knepley/fix-plex-test-partitions' into tisaac/dmforest

* origin/knepley/fix-plex-test-partitions: (151 commits)
Plex ex5: Provide test partitions
Plex ex4: Provide test partitions
Configure: I really hate exceptions - We should rewrite this to eliminate all exceptions in favor of return codes
Configure: I hate exceptions
fix typo for 'runex19_superlu_dist_2'
Fix for freeing just what needs to be free when SuperLU_Dist factorizations reused
Updated to latest hypre pre-release with fixes for handling blas/lapack libraries
Switch back to petsc fork of SuperLU_Dist that turns of use of findMPI
PCFactorSetUpMatSolverPackage() should not crash but instead produce a useful error message if called before it is in the proper state.
Clarify that SNESGetLinearSolveIterations() does not include failed iterations.
User reported issues with downloading boost using the previous URL but not this one
Configure: Small change to log order
MatFDColoringSetUp_MPIXAIJ: fix broken initialization of colmap
Bib: Missing comma
add support for binary viewer for -ts_monitor that records time at each timestep
superlu_dist: set MPI_C_COMPILER etc options - so that superlu_dist cmake does not look for a different/incompatible mpi compiler. [and its CFLAGS].
remove reference to VecGetValuesBlocked() and VecGetValuesLocal() from manual page since they do not exist.
Stop configure if user builds with threadsafety and debugging on
Added configure option --with-viewfromoptions=0 which will speed up code with many small solves substantially
Only generate list of all PetscFunctionLists generated in debug mode since in some circumstances where many objects are created searching this list is very slow.
...

Conflicts:
src/ts/examples/tutorials/ex11.c

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Merge branch 'barry/feature-force-setting-exactfinaltime'

Cause TS_EXACTFINALTIME_MATCHSTEP to error for non-adaptive schemes
This also causes non-adapative schemes to not have a TSAdapt object (which they don't use anyway)

Funded-by: IMEX
Time: .2 hours
R

Cause TS_EXACTFINALTIME_MATCHSTEP to error for non-adaptive schemes
This also causes non-adapative schemes to not have a TSAdapt object (which they don't use anyway)

Funded-by: IMEX
Time: .2 hours
Reported-by: Ed Bueler <elbueler@alaska.edu>

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

Merge branch 'maint'

Merge branch 'emil/to-maint-fix-euler-interpolation' into maint

TS: Fix euler interpolation

Reported-by: https://bitbucket.org/petsc/petsc/issues/119/ts-unable-to-do-easiest-example-10-steps

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 tisaac/dmforest

* master: (177 commits)
DT ex3: The test should check the number of digits requested
DT ex3: One test fails in single precision
Plex: Do not automati

Merge branch 'master' into tisaac/dmforest

* master: (177 commits)
DT ex3: The test should check the number of digits requested
DT ex3: One test fails in single precision
Plex: Do not automatically create a default section if no fields are defined
Plex: DMPlexCopyCoordinates() needs to create the coordinate section if it is missing
superlu: no longer requires xerbla slamch dlamch ?
superlu: update to v5.1
skip MatSolve() if matrix factorization fails
replacing SETERRQ with error output info and continue execution
SNES ex12: Added parallel tests - These test parallel, unstructured interpolation/restriction using FAS
Plex+SNES: Now in DMPlexComputeJacobian_Internal(), we also form the Jacobian preconditioner matrix
FE: Now we can form either the Jacobian or the Jacobian preconditioned matrix using a flag
DS: Now have point wise function slots for the Jacobian preconditioned matrix - This will allow us to form the "right" operator for preconditioning, like M in the (2,2) block for Stokes
Plex: When swapping Plexes, also swap point SF
Plex: Fix parallel error in Injector
Mat+Plex: Added MatPreallocator which can be called with MatSetValues() and preallocates another Mat - This could have been another "mode" of Mat, but I thought this was cleaner - Use MatPreallocator to preallocator Plex interpolators
DT ex3: Change tolerance and eliminate tests which need MPFR from regular runs
superlu: fix complex build
superlu: update to using 5.0 tarball with the fix for -Werror=format-security
superlu: update to use tarball with -Werror=format-security fix
DM: Clone the coordinate DM instead of reusing in Clone()
...

Conflicts:
config/builder.py
src/dm/impls/plex/plexcreate.c

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Merge branch 'master' into hongzh/checkpointing

Manual merges for a couple of PetscOptions changes in master

Merged in emil/fix-ts-euler-generate-error-if-non-rhsfunction (pull request #385)

Generate an Error if the user calls for TS type Euler with IFunction defined

Merge remote-tracking branch 'origin/knepley/feature-plex-add-time' into tisaac/dmforest

Both branches changeds DM projection behavior, so I wanted to sort it
out before merging

* origin/knepley/fe

Merge remote-tracking branch 'origin/knepley/feature-plex-add-time' into tisaac/dmforest

Both branches changeds DM projection behavior, so I wanted to sort it
out before merging

* origin/knepley/feature-plex-add-time: (59 commits)
SNES ex69: Updated to new function API, fixed test output
SNES ex75: Fixed for new function API
add fortran stub for TSMonitorLGSetTransform() and fix TSMonitorLG for multiple fields but no names provided for fields
add -binary_write_double so __float128 precision can save as double to binary files
TSClone() did not clone Fortran function pointers hence some TS methods would fail if functions provided in Fortan
petsc4py: update to snapshot with 'barry/petscoptions-object' changes
fix bad merge that introduced 2 copies of the MPI_Comm_free()
update example to use MAT_INPLACE_MATRIX, not REUSE
incorrect addition of float to PetscInt
update for new PetscOptions API
TS ex18: Fixed function API and test output
Function now takes PetscOptions as first argument, this was missed during the first round of updates
bugfix for MatSetOption_Elemental()
fix test example no change output that was missing a line
fixes for new PetscOptions.. API that are needed based on problems with nightly build
Plex ex3: Use new function API
SNES ex62: Use new function API
SNES ex12: Use new function API
Plex: Fixed unused options in examples
Plex+DMDA: Add time to signatures
...

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

Merge branch 'master' into knepley/feature-plex-add-time

* master: (57 commits)
add fortran stub for TSMonitorLGSetTransform() and fix TSMonitorLG for multiple fields but no names provided for fie

Merge branch 'master' into knepley/feature-plex-add-time

* master: (57 commits)
add fortran stub for TSMonitorLGSetTransform() and fix TSMonitorLG for multiple fields but no names provided for fields
add -binary_write_double so __float128 precision can save as double to binary files
TSClone() did not clone Fortran function pointers hence some TS methods would fail if functions provided in Fortan
petsc4py: update to snapshot with 'barry/petscoptions-object' changes
fix bad merge that introduced 2 copies of the MPI_Comm_free()
update example to use MAT_INPLACE_MATRIX, not REUSE
incorrect addition of float to PetscInt
update for new PetscOptions API
Function now takes PetscOptions as first argument, this was missed during the first round of updates
bugfix for MatSetOption_Elemental()
fix test example no change output that was missing a line
fixes for new PetscOptions.. API that are needed based on problems with nightly build
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
fixes for merge from Jed's branch that should have been merged into master months ago!
Add to changes dev.html file the change to the PetscOptions routines
...

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Merge branch 'master' of bitbucket.org:petsc/petsc

Merge remote-tracking branch 'petsc/master' into moved-partitioning-to-pcgasmsetup

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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