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pair_none.html

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<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
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<H3>pair_style none command
</H3>
<P><B>Syntax:</B>
</P>
<PRE>pair_style none
</PRE>
<P><B>Examples:</B>
</P>
<PRE>pair_style none
</PRE>
<P><B>Description:</B>
</P>
<P>Using a pair style of none means pair forces are not computed.
</P>
<P>With this choice, the force cutoff is 0.0, which means that only atoms
within the neighbor skin distance (see the <A HREF = "neighbor.html">neighbor</A>
command) are communicated between processors. You must insure the
skin distance is large enough to acquire atoms needed for computing
bonds, angles, etc.
</P>
<P>A pair style of <I>none</I> will also prevent pairwise neighbor lists from
being built. However if the <A HREF = "neighbor.html">neighbor</A> style is <I>bin</I>,
data structures for binning are still allocated. If the neighbor skin
distance is small, then these data structures can consume a large
amount of memory. So you should either set the neighbor style to
<I>nsq</I> or set the skin distance to a larger value.
</P>
<P><B>Restrictions:</B> none
</P>
<P><B>Related commands:</B> none
</P>
<P><B>Default:</B> none
</P>
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