git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@7038 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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<H3>dihedral_style multi/harmonic command
</H3>
<H3>dihedral_style multi/harmonic/omp command
</H3>
<P><B>Syntax:</B>
</P>
<PRE>dihedral_style multi/harmonic
@ -37,6 +39,30 @@ or <A HREF = "read_restart.html">read_restart</A> commands:
<LI>A4 (energy)
<LI>A5 (energy)
</UL>
<HR>
<P>Styles with a <I>cuda</I>, <I>gpu</I>, <I>omp</I>, or <I>opt</I> suffix are functionally
the same as the corresponding style without the suffix. They have
been optimized to run faster, depending on your available hardware,
as discussed in <A HREF = "Section_accelerate.html">this section</A> of the manual.
The accelerated styles take the same arguments and should produce the
same results, except for round-off and precision issues.
</P>
<P>These accelerated styles are part of the USER-CUDA, GPU, USER-OMP and OPT
packages, respectively. They are only enabled if LAMMPS was built with
those packages. See the <A HREF = "Section_start.html#start_3">Making LAMMPS</A>
section for more info.
</P>
<P>You can specify the accelerated styles explicitly in your input script
by including their suffix, or you can use the <A HREF = "Section_start.html#start_6">-suffix command-line
switch</A> when you invoke LAMMPS, or you can
use the <A HREF = "suffix.html">suffix</A> command in your input script.
</P>
<P>See <A HREF = "Section_accelerate.html">this section</A> of the manual for more
instructions on how to use the accelerated styles effectively.
</P>
<HR>
<P><B>Restrictions:</B>
</P>
<P>This dihedral style can only be used if LAMMPS was built with the