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jump command


jump file label 


jump newfile
jump in.run2 runloop 


This command closes the current input script file, opens the file with the specified name, and begins reading SPPARKS commands from that file. The original file is not returned to, although by using multiple jump commands it is possible to chain from file to file or back to the original file.

Optionally, if a 2nd argument is used, it is treated as a label and the new file is scanned (without executing commands) until the label is found, and commands are executed from that point forward. This can be used to loop over a portion of the input script, as in this example. These commands perform 10 runs, each of 10000 steps, and create 10 dump files named file.1, file.2, etc. The next command is used to exit the loop after 10 iterations. When the "a" variable has been incremented for the tenth time, it will cause the next jump command to be skipped.

variable a loop 10
label loop
run 5.0
next a
jump in.lj loop 

If the jump file argument is a variable, the jump command can be used to cause different processor partitions to run different input scripts. In this example, SPPARKS is run on 40 processors, with 4 partitions of 10 procs each. An in.file containing the example variable and jump command will cause each partition to run a different simulation.

mpirun -np 40 lmp_ibm -partition 4x10 -in in.file 
variable f world script.1 script.2 script.3 script.4
jump $f 


If you jump to a file and it does not contain the specified label, SPPARKS will come to the end of the file and exit.

Related commands:

variable, include, label, next

Default: none