forked from lijiext/lammps
49 lines
1.2 KiB
HTML
49 lines
1.2 KiB
HTML
<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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<HR>
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<H3>timestep command
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</H3>
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<P><B>Syntax:</B>
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</P>
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<PRE>timestep dt
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</PRE>
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<UL><LI>dt = timestep size (time units)
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</UL>
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<P><B>Examples:</B>
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</P>
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<PRE>timestep 2.0
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timestep 0.003
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</PRE>
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<P><B>Description:</B>
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</P>
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<P>Set the timestep size for subsequent molecular dynamics simulations.
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See the <A HREF = "units.html">units</A> command for a discussion of time units.
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Note that using the units command also sets the timestep to its
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default value in the chosen units.
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</P>
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<P>When the <A HREF = "run_style.html">run style</A> is <I>respa</I>, dt is the timestep for
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the outer loop (largest) timestep.
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</P>
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<P><B>Restrictions:</B> none
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</P>
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<P><B>Related commands:</B>
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</P>
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<P><A HREF = "fix_dt_reset.html">fix dt/reset</A>, <A HREF = "run.html">run</A>,
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<A HREF = "run_style.html">run_style</A> respa, <A HREF = "units.html">units</A>
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</P>
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<P><B>Default:</B>
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</P>
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timestep = 0.005 tau for units = lj<BR>
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timestep = 1.0 fmsec for units = real<BR>
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timestep = 0.001 psec for units = metal <BR>
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</HTML>
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