#       main topics:
UP      arb.hlp
UP      glossary.hlp
UP      pa_optimizer.hlp

#       sub topics:
SUB     mode_optimize.hlp

# format described in ../help.readme


TITLE		Global Optimization

OCCURRENCE	ARB_PARSIMONY/Tree/Tree Optimization/Heuristic optimizer
                ARB_PARSIMONY/<NNI+K.L.-mode-button>

DESCRIPTION     Globally optimizes (parts of) the current tree.

		The global optimization consists of two steps:

                1. LINK{pa_locopti.hlp}
                2. LINK{pa_kernlin.hlp}

                First step 1. is repeated until no further improvement is found.

                Then step 2. is performed. If an improvement was found, it restarts at step 1.
                Otherwise the optimization stops.

NOTES		None

EXAMPLES	None

WARNINGS	None

BUGS		No bugs known