Added test problems and matlab code.

Updating version and testing on linux.

Merge branch 'maint'

Updated version for debugging.

tests: attempt to work around timeouts

Starting examples run on frog arch-c-exodus-dbg-builder /sandbox/petsc/petsc.maint-3 DUMMYARGUMENT=foobar at Sun, 06 May 2018 13:02:17 -0500
not ok snes_tutor

tests: attempt to work around timeouts

Starting examples run on frog arch-c-exodus-dbg-builder /sandbox/petsc/petsc.maint-3 DUMMYARGUMENT=foobar at Sun, 06 May 2018 13:02:17 -0500
not ok snes_tutorials-ex13_3d_p3_0
# Exceeded timeout limit of 600 s

Starting examples run on crank arch-linux-pkgs-opt /sandbox/petsc/petsc.maint DUMMYARGUMENT=foobar at Sun, 06 May 2018 10:28:31 -0500
not ok tao_tutorials-ex3_guess_pod
# Exceeded timeout limit of 600 s

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Merge remote-tracking branch 'origin/hongzh/fix-hessian-test'

Resolved issue with uninitialized integers used in a conditional check

Almost working version...

fix compile warnings

/usr/home/balay/petsc.next-tmp/src/tao/interface/taosolverregi.c:68:18: warning: unused variable 'ierr' [-Wunused-variable]

Version of MATLAB interface that compiles.

Change to BNTR method for eptorsion1

Using NTR gives an error because of missing MATOP_GET_DIAGONAL operation

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Project: FASTMATH adjoint
Time: 0.1 hours
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Fix the gradient test

Gradients are not always evaluated at tao->solution. Pass the vector as an additional argument to TaoTestGradient().

Funded-by:
Project: FASTMATH adjoint
Time: 0.2 hours
Repor

Fix the gradient test

Gradients are not always evaluated at tao->solution. Pass the vector as an additional argument to TaoTestGradient().

Funded-by:
Project: FASTMATH adjoint
Time: 0.2 hours
Reported-by:
Thanks-to:

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Fix the viewer for -tao_test_gradient

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Project: FASTMATH adjoint
Time: 0.2 hours
Reported-by:
Thanks-to:

Fix the viewer for Hessian test

Funded-by:
Project: FASTMATH adjoint
Time: 0.2 hours
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Fix typos in the doc notes

Fix bad alignment

Funded-by:
Project: FASTMATH adjoint
Time: 0.1 hours
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Start of the matlab mex interface to tao pounders for texting purposes.

test output update

PGD removed and buried into BNCG as a step type option

Add gradient test in TaoComputeObjectiveAndGradient

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Project: FASTMATH adjoint
Time: 0.1 hours
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Add a test for matrix-free Hessian

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Project: FASTMATH adjoint
Time: 0.2 hours
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Remove -tao_type test

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Project: FASTMATH adjoint
Time: 0.5 hours
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Add -tao_test_gradient and -tao_test_hessian

The old finite-difference tests (enabled with -tao_type test) have the following limitations:
* Can only be evaluated at three points and often fail
* No

Add -tao_test_gradient and -tao_test_hessian

The old finite-difference tests (enabled with -tao_type test) have the following limitations:
* Can only be evaluated at three points and often fail
* Not work for matrix-free Hessian

The new feature allows for on-the-fly gradient/Hessian validation, supports matrix-free Hessian and improves the output. It follows SNESTestJacobian().

Funded-by:
Project: FASTMATH adjoint
Time: 4.0 hours
Reported-by:
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Merge remote-tracking branch 'origin/denera/tao-separate-quadratic-solvers'

Bug fix for BFGS preconditioner