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Topic: Re: [mg4623] Background jobs
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John Fultz

Posts: 736
Registered: 12/7/04
Re: [mg4623] Background jobs
Posted: Aug 22, 1996 3:29 AM
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> Dear All,
> I would like to start a Mathematica job as a background process.
> I assumed this would be easy, despite the fact that I couldn't find
> anything about this in the manual. However, the -run option doesn't seem
> to work. I'm using version 2.2.
> Any help would be very much appreciated.
> Loris
> --
> ================================================================
> Loris Bennett Tel.: (+49) 30 314 23762
> http://wwwitp.physik.TU-Berlin.DE:80/~loris/
> TU Berlin, PN7-1, Hardenbergstr. 36, 10632 Berlin, FRG
> ================================================================

There is nothing inherent to Mathematica to make it run as a background
process. This is the operating system's job. So, the question you need
to ask is, "how would I make *any* program run as a background process?".

The -run argument has nothing to do with the background simply
instructs Mathematica what to do when it first starts up. Thus, you could
pass it a command through -run which tells it to run a package. If you
want Mathematica to quit gracefully at the end, then you'd put a Quit[]
command at the end of your package.

On a Unix-based system, you could run Mathematica in the background by
simply attaching an & after your command-line. For example:

math < infile > outfile &

(note that in Unix, you can also use redirection as I did for input and output
files...I find that somewhat easier to remember than the -run argument).


John Fultz
Applications Group
Wolfram Research, Inc.

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