19981130: ``npt'' run

GOAL

``npt'' run to see the variation of the cell size.

Results

I tried to adjust the time constants for temperature and pressure control:

run	$\tau_T\;(ps)$	$\tau_P\;(ps)$
A	1.0	4.0
B	0.5	0.5
C	0.1	0.1
D (core dumped)	0.002	0.002

Does not seem to have any relevant effect; am I doing any gross mistake?

(There was a big figure here, but I could not convince latex2html to digest it)