add boolean guards to check if tao default options have been changed
Set the options prefix correctly on tao->ksp and tao->linesearch.
add accessors to tao iteration counter, tao total iteration count
fixed missing CHKERRQ() detected by clang's --analyze
updated PETSc directory layout to match standard packaging strategiesinclude/petsc finclude,private,mpiunilib/petsc confbin/petsc*
simplify option object names
updated new XXXSetFromOptions_YYY() methods to take PetscOptionsObjectType
manual merge of conflict
added toggle and getter for PCJacobiSetUseAbs()changed PCJacobiSetUseRowMax/Sum to SetType() and added a getterfixed some test output
Merge branch 'barry/fix-options-default'Conflicts: src/ksp/ksp/examples/tutorials/ex52.c
cleanup of use of PetscOptionsInt and friends including use of flag final argument
tao->ksp_its is per iteration, tao->ksp_tot_its is per solve
removed Tao use of antediluvian PETSC_C_BEGIN/END with PETSC_EXTERN for Tao implementation class constructors
separate total TAO ksp count from per-iter count
docs: fix errors of type:manualpages in: /sandbox/petsc/petsc.clone/src/tao/unconstrained/impls/nlsmake[7]: [manualpages] Error 1 (ignored)
tao: documentation update
add a tao solver page to man pages for each solver (could be filled in a bit more)
add tao solver table and start to write solver man pages
removed MatStructure arguments from Tao
KSPSetOperators() no longer has the MatStructure argument. The Mat objects now track that information themselves. Use KPS/PCSetReusePreconditioner() to prevent the recomputation of the preconditioner
KSPSetOperators() no longer has the MatStructure argument. The Mat objects now track that information themselves. Use KPS/PCSetReusePreconditioner() to prevent the recomputation of the preconditioner if the operator changed in the way that SAME_PRECONDITIONER did with KSPSetOperators()SNES/TS still need to be cleaned up to better utilize the new interfaces
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completed cleanup of removal of matrix pointers to compute jacobian routinesupdate changes filefixed tao examples to no longer use Mat* arguments for Jacobian/Hessian etc computations
fix Tao unconventional naming of TAOLINESEARCH_XXX_CTX TAOLINESEARCH_MT etc
changed TaoTerminationReason TaoConvergedReasonchanged TaoLineSearchTerminationReason to TaoLineSearchConvergedReasonreason: consistency with the rest of PETSc
remove wierd handling of options and options prefixes in Tao
set tao tolerances for single precisionBTW: there are all kinds of crazy tolerances all over the place; needs to be rationalized
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