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<font face="serif">from the Doc/INPUT_PW file, so which</font><font
 face="serif"> is the best
compromise between time saving and accuracy, among these methods?<br>
Anyway I'm running some tests.<br>
</font><font face="serif"><br>
opt_scheme<br>
               CHARACTER ( default = "quick-min" )<br>
               specify the type of optimization scheme<br>
               "sd"         : steepest descent<br>
               "broyden"    : quasi-Newton Broyden's second method
(suggested)<br>
               "quick-min"  : a minimization algorithm based on<br>
                              molecular dynamics<br>
               "damped-dyn" : damped molecular dynamics. See also the<br>
                              keyword damp<br>
               "mol-dyn"    : constant temperature molecular dynamics.
See<br>
                              also the keyword temp_req.<br>
                              Note that, in order to perform such
molecular<br>
                              dynamics, spring forces are NOT projected<br>
                              along the path.<br>
               "langevin"   : finite temperature langevin dynamics of
the<br>
                              string (smd only). It is used to compute
the<br>
                              average path and the free-energy profile.</font><br>
<div class="moz-signature">-- <br>
<title>signature</title>
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<hr size="2" width="100%"><b>Dr. ROSINI MARCELLO</b><br>
<a href="mailto:rosini.marcello@unimo.it">rosini.marcello@unimo.it</a><br>
--------------------------------------------------- <br>
<a href="http://www.fisica.unimo.it">dipartimento di fisica</a><br>
Università degli studi di Modena e Reggio Emilia<br>
<br>
via campi 213/a, 41100 Modena, Italy<br>
tel +39 059 2055312  -  fax +39 059 2055616<br>
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