Need to test nsize requirements in subtests

Previously had tested the requires in subtests, but didn't include the
nsize checks. Given the way this works, unless there is a suffix added,
one parall

Need to test nsize requirements in subtests

Previously had tested the requires in subtests, but didn't include the
nsize checks. Given the way this works, unless there is a suffix added,
one parallel subtest will make all tests require MPI.

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Improvements for the install

The test harness has to operate in 3 modes:
1. Normal development mode
2. Test install from source dir (make allgtests)
3. Test install from install dir
See config

Improvements for the install

The test harness has to operate in 3 modes:
1. Normal development mode
2. Test install from source dir (make allgtests)
3. Test install from install dir
See config/gmakegentest.py documentation for how these differs.
This sorts out the paths for all 3 cases.

A big change is making gmakefile.test use absolute paths
rather than the relative paths used originally and in the normal
gmakefile. This simplifies a lot of the development, including the
previous method of doing a lot of modifications for the installs.

`make test` is still not hooked up to the new test system so testing was
done with allgtest.

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Merge branch 'scott/ksp-ksp-tutorials'

Merge branch 'barry/add-ftn-linfinity-conv-test' of bitbucket.org:petsc/petsc into barry/add-ftn-linfinity-conv-test

Merge branch 'master' into scott/ksp-ksp-tutorials

Merge branch 'barry/all-new-test-harness-branches'

Merge branch 'master' into scott/ksp-ksp-tutorials

Be reasonable in build requirements

datafilespath is really a runtime thing -- it does not affect
compilation at all, but if people put
```
build:
requires: datafilespath
```
then this shoul

Be reasonable in build requirements

datafilespath is really a runtime thing -- it does not affect
compilation at all, but if people put
```
build:
requires: datafilespath
```
then this should be interpreted as: All tests in this file require
datafilespath.

Includes a couple of miscellaneous improvements to gmakegentest.py

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Clean up naming scheme & debug of rebug

Removed the "run" from the targets to make for a cleaner naming scheme.

I changed a || to a && in a previous commit, but this is wrong
because of how the err

Clean up naming scheme & debug of rebug

Removed the "run" from the targets to make for a cleaner naming scheme.

I changed a || to a && in a previous commit, but this is wrong
because of how the error codes accumulate. My issue was with the
redirects and now that is cleaned up.

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Adding alt file replace functionality

Adding ALT=1 to the gmakefile.test arguments will enable passing the -M
to the shell harness which then passes it to petsc_diff which will then
replace the alt

Adding alt file replace functionality

Adding ALT=1 to the gmakefile.test arguments will enable passing the -M
to the shell harness which then passes it to petsc_diff which will then
replace the alt file. Should use with caution if multiple alt files are
present.

A bug was found while enabling this for alt files. I used a || operator
instead of a && operator.

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Merge branch 'jed/tests-cxx-linker'

Slight improvement to tree walker

Instead of testing if makefile exists, skip output and .dSYM dirs

Merge branch 'barry/more-to-new-test-harness' into barry/all-new-test-harness-branches

Merge branch 'barry/tao-to-new-test-harness' into barry/all-new-test-harness-branches

Merge branch 'barry/move-to-new-test-harness' into barry/all-new-test-harness-branches

Merge branch 'jed/tests-cxx-linker' into barry/more-to-new-test-harness

gmakegentest: extra object files are prereqs for build products, not source

Document, remove redundant prereqs (that come via pattern rules), and
place on one line.

Add another alt file; allow up to 9 alt files per test

Commit-type: portability-fix, testing-fix, feature
Reported-by: nightly tests

Converted another directory to new test harness

Added support for localrunfiles: keyword to be the name of a directory that is copied

Commit-type: testing-fix, feature

if using 'output_file: output/ex1_1.out' in ex1_2 then alt files should be ex1_1_alt etc.. [and not ex1_2_alt]

Merge branch 'barry/test-harnes-vec-tests' into balay/test

Merge branch 'master' into knepley/feature-plex-adjoint-prelim

* master: (60 commits)
petsc4py: update to use latest 3.8 snapshot
petsc4py: update to snapshot that syncs with 276c550
fix warni

Merge branch 'master' into knepley/feature-plex-adjoint-prelim

* master: (60 commits)
petsc4py: update to use latest 3.8 snapshot
petsc4py: update to snapshot that syncs with 276c550
fix warning
Plex ex26: Protect ExodusII stuff
DM: DMCreateSubDM() field argument should be const
TS ex46: Newlines and some numerical jitter
TS ex45: Newlines and some numerical jitter
TS ex11: Fixed indentation and time step numbering
SNES ex12: Update for DM view changes
Plex tests: Update to new DM output
Plex ex23: Use Nc not dim for vector fields
Plex: Default section now ignores cells hanging off boundary meshes
Plex: Viewer now reports the cell Height
Increase patchlevel to 3.8.3
Plex: Fixed DMPlexInterpolate() bugs - Do not copy associated data if we are not interpolating - Do not interpolate if we already have full depth
fix valgrind errors with using PetscObjectGetName()/SetName() with the same object - resulting in a free() before copy.
ex4: fix compile warning and update makefile
Minor fixes
Improving report_tests
PetscDS: Must initialize the default adjacency
...

Conflicts:
include/petsc/private/dmimpl.h
include/petscdm.h
include/petscis.h
src/dm/impls/plex/plexcreate.c

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gmakegentest: support multiple dependency files with 'depends:' keyword

Merge remote-tracking branch 'origin/scott/test-harness-report_tests_fix'

Merge branch 'master' into knepley/feature-plex-adjoint-prelim

* master: (251 commits)
yaml: add a backup download URL
Fix documentation of MatSetRandom function
Ignore -malloc-hbw option if m

Merge branch 'master' into knepley/feature-plex-adjoint-prelim

* master: (251 commits)
yaml: add a backup download URL
Fix documentation of MatSetRandom function
Ignore -malloc-hbw option if malloc is already set
Plex: Fixed array initialization
pgi: compile fix
knl: update test to use memkind and remove option that worked arround a bug with intel 17
Check the return value for memkind_posix_memalign
Change the default behavour for -malloc_hbw
Bib: More refs
test: remove runex13f90 as its now converted to new test suite
fix win32 crash. This test was previously run with '-n 4' - so restoring it
Fix petscsfgetgraph_ to work for all Fortran compilers by directly using array of PetscSFNodes
bugfix for MatDuplicate_MPIAIJ_PtAP Reported-by: Samuel Lanthaler <s.lanthaler@gmail.com>
strip out dead sundials usage code; change sundials test to only run 5 timesteps to prevent different number of steps on different systems.
Remove extra lines of output file
Example uses C99 constructs so must mark with requires: c99
fix const missmatch for DMDAVecRestoreArrayRead()
remove conflict between function name in example and new PETSc TS function
builds: attempt to do maint/master/next test builds in separate clones
ex62: it turned out that CHACO partioning is not deterministic. Use a prescribed partition instead
...

Conflicts:
src/dm/interface/dm.c
src/snes/examples/tutorials/ex13.c

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