<I>post</I> value = <I>no</I> or <I>yes</I> 

  <I>every</I> values = M command

    M = break the run into M-timestep segments and invoke command between them

    command = a single LAMMPS command (enclosed in double quotes if multiple words)

    command = a single LAMMPS command listed the same as if on a line by itself

              NULL means no command will be invoked 

</PRE>

run 1000000 upto

run 100 start 0 stop 1000

run 1000 pre no post yes

run 100000 start 0 stop 1000000 every 1000 "print Protein Rg = $r"

run 100000 start 0 stop 1000000 every 1000 print "Protein Rg = $r"

run 100000 every 1000 NULL 

</PRE>

<P><B>Description:</B>

to "no" for the 1st run LAMMPS performs, then it is overridden, since

the initial setup computations must be done.

</P>

<P>The <I>every</I> option provides a means of interleaving LAMMPS runs with a

command.  This can be a short-hand abbreviation to avoid listing a

long series of runs in your input script.  Or it can be useful for

invoking a command that wraps some other code (e.g. as a library) to

perform a computation periodically during a long LAMMPS run.  See

<P>The <I>every</I> option provides a means of breaking a LAMMPS run into a

series of shorter runs.  Optionally a single LAMMPS command can be

executed in between the short runs.  This is a means to avoid listing

a long series of runs and commands in your input script.  For example,

a <A HREF = "print.html">print</A> command could be invoked or a <A HREF = "fix.html">fix</A>

could be redefined, e.g. to reset a thermostat temperature.  Or it

could be useful for invoking a command you write that wraps some other

code (e.g. as a library) to perform a computation periodically during

a long LAMMPS run.  See <A HREF = "Section_modify.html">this section</A> of the

documentation for info about how to add new commands to LAMMPS.  See

<A HREF = "Section_howto.html#4_10">this section</A> of the documentation for ideas

about how to couple LAMMPS to other codes.

</P>

<P>N total steps are simulated, in shorter runs of M steps each.  After

each M-length run, the command is invoked.  If the command is

specified as NULL, no command is invoked.  Thus these lines:

<P>With the <I>every</I> option, N total steps are simulated, in shorter runs

of M steps each.  After each M-length run, the command is invoked.  If

the command is specified as NULL, no command is invoked.  Thus these

lines:

</P>

<PRE>variable q equal x[100]

run 6000 every 2000 "print Coord = $q" 

run 6000 every 2000 print "Coord = $q" 

</PRE>

<P>are the equivalent of:

</P>

print Coord = $q 

</PRE>

<P>which does 3 runs of 2000 steps and prints the x-coordinate of a

particular atom between runs.  Note that the command can contain

<A HREF = "variable.html">variables</A> of style <I>equal</I> which will be evaluated

particular atom between runs.  Note that, as in this example, the

command can contain <A HREF = "variable.html">variables</A> which will be evaluated

each time the command is invoked.

</P>

<P>IMPORTANT NOTE: For the <I>every</I> option, all remaining arguments after

the M value are considerd part of the LAMMPS command (e.g. print

"Protein Rg = $r" as in the example above).  This means that, if

specified, the <I>every</I> option must be the last keyword used.  The

command should be listed exactly as it would appear if it were on a

line by itself in the input script.

</P>

<P>If the <I>pre</I> and <I>post</I> options are set to "no" when <I>every</I> is used,

then the 1st run will do the full setup and the last run will print

the full timing summary, but these operations will be skipped for

  {post} value = {no} or {yes} 

  {every} values = M command

    M = break the run into M-timestep segments and invoke command between them

    command = a single LAMMPS command (enclosed in double quotes if multiple words)

    command = a single LAMMPS command listed the same as if on a line by itself

              NULL means no command will be invoked :pre

:ule

run 1000000 upto

run 100 start 0 stop 1000

run 1000 pre no post yes

run 100000 start 0 stop 1000000 every 1000 "print Protein Rg = $r"

run 100000 start 0 stop 1000000 every 1000 print "Protein Rg = $r"

run 100000 every 1000 NULL :pre

[Description:]

to "no" for the 1st run LAMMPS performs, then it is overridden, since

the initial setup computations must be done.

The {every} option provides a means of interleaving LAMMPS runs with a

command.  This can be a short-hand abbreviation to avoid listing a

long series of runs in your input script.  Or it can be useful for

invoking a command that wraps some other code (e.g. as a library) to

perform a computation periodically during a long LAMMPS run.  See

The {every} option provides a means of breaking a LAMMPS run into a

series of shorter runs.  Optionally a single LAMMPS command can be

executed in between the short runs.  This is a means to avoid listing

a long series of runs and commands in your input script.  For example,

a "print"_print.html command could be invoked or a "fix"_fix.html

could be redefined, e.g. to reset a thermostat temperature.  Or it

could be useful for invoking a command you write that wraps some other

code (e.g. as a library) to perform a computation periodically during

a long LAMMPS run.  See "this section"_Section_modify.html of the

documentation for info about how to add new commands to LAMMPS.  See

"this section"_Section_howto.html#4_10 of the documentation for ideas

about how to couple LAMMPS to other codes.

N total steps are simulated, in shorter runs of M steps each.  After

each M-length run, the command is invoked.  If the command is

specified as NULL, no command is invoked.  Thus these lines:

With the {every} option, N total steps are simulated, in shorter runs

of M steps each.  After each M-length run, the command is invoked.  If

the command is specified as NULL, no command is invoked.  Thus these

lines:

variable q equal x\[100\]

run 6000 every 2000 "print Coord = $q" :pre

run 6000 every 2000 print "Coord = $q" :pre

are the equivalent of:

print Coord = $q :pre

which does 3 runs of 2000 steps and prints the x-coordinate of a

particular atom between runs.  Note that the command can contain

"variables"_variable.html of style {equal} which will be evaluated

particular atom between runs.  Note that, as in this example, the

command can contain "variables"_variable.html which will be evaluated

each time the command is invoked.

IMPORTANT NOTE: For the {every} option, all remaining arguments after

the M value are considerd part of the LAMMPS command (e.g. print

"Protein Rg = $r" as in the example above).  This means that, if

specified, the {every} option must be the last keyword used.  The

command should be listed exactly as it would appear if it were on a

line by itself in the input script.

If the {pre} and {post} options are set to "no" when {every} is used,

then the 1st run will do the full setup and the last run will print

the full timing summary, but these operations will be skipped for