forked from lijiext/lammps
72 lines
2.1 KiB
Plaintext
72 lines
2.1 KiB
Plaintext
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"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
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:link(lws,http://lammps.sandia.gov)
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:link(ld,Manual.html)
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:link(lc,Section_commands.html#comm)
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:line
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jump command :h3
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[Syntax:]
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jump file label :pre
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file = filename of new input script to switch to
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label = optional label within file to jump to :ul
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[Examples:]
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jump newfile
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jump in.run2 runloop :pre
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[Description:]
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This command closes the current input script file, opens the file with
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the specified name, and begins reading LAMMPS commands from that file.
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The original file is not returned to, although by using multiple jump
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commands it is possible to chain from file to file or back to the
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original file.
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Optionally, if a 2nd argument is used, it is treated as a label and
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the new file is scanned (without executing commands) until the label
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is found, and commands are executed from that point forward. This can
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be used to loop over a portion of the input script, as in this
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example. These commands perform 10 runs, each of 10000 steps, and
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create 10 dump files named file.1, file.2, etc. The "next"_next.html
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command is used to exit the loop after 10 iterations. When the "a"
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variable has been incremented for the 10th time, it will cause the
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next jump command to be skipped.
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variable a loop 10
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label loop
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dump 1 all atom 100 file.$a
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run 10000
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undump 1
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next a
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jump in.lj loop :pre
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If the jump {file} argument is a variable, the jump command can be
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used to cause different processor partitions to run different input
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scripts. In this example, LAMMPS is run on 40 processors, with 4
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partions of 10 procs each. An in.file containing the example variable
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and jump command will cause each partition to run a different
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simulation.
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mpirun -np 40 lmp_ibm -partition 4x10 -in in.file :pre
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variable f world script.1 script.2 script.3 script.4
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jump $f :pre
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[Restrictions:]
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If you jump to a file and it does not contain the specified label,
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LAMMPS will come to the end of the file and exit.
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[Related commands:]
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"variable"_variable.html, "include"_include.html, "label"_label.html,
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"next"_next.html
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[Default:] none
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