12-12-2009
Remote simulation and 'at' command
Hey,
Task seems to be quite easy, but I'm still a bit green in shell scripting. I hope you can help me a bit. I have to run some simulation at the distance by remote terminal.
Normally when I'm working on the server directly I just type:
mpirun -np 8 compressibleInterFoam -parallel > log.txt &
This command allows me to run the simulation on 8 cores working in parallel, put the output into the file log.txt and keep everything in the background. Thanks to this I'm sure that when I close the terminal window I don't stop the simulation.
Situation is similar when I'm doing this as a remote procedure. Then I just login via ssh login@server_address in terminal and then I use again above mpirun procedure. The only one difference is that when I close this terminal simply by closing window I'm not only stop the connection but either terminate the simulation ;( I ended up with idea of using 'at now' command, but I don't how to write proper procedure.
Maybe you know how to solve my problem?
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LEARN ABOUT REDHAT
openvt
OPENVT(1) Linux 1.x OPENVT(1)
NAME
openvt - start a program on a new virtual terminal (VT).
SYNOPSIS
openvt [-c vtnumber] [-s] [-u] [-l] [-v] [--] command command_options
DESCRIPTION
openvt will find the first available VT, and run on it the given command with the given command options, standard input, output and error
are directed to that terminal. The current search path ($PATH) is used to find the requested command. If no command is specified then the
environment variable $SHELL is used.
OPTIONS
-c vtnumber
Use the given VT number and not the first available. Note you must have write access to the supplied VT for this to work.
-s Switch to the new VT when starting the command. The VT of the new command will be made the new current VT.
-u Figure out the owner of the current VT, and run login as that user. Suitable to be called by init. Shouldn't be used with -c or -l.
-l Make the command a login shell. A - is prepended to the name of the command to be executed.
-v Be a bit more verbose.
-w wait for command to complete. If -w and -s are used together then openvt will switch back to the controlling terminal when the com-
mand completes.
-- end of options to openvt.
NOTE
If openvt is compiled with a POSIX (GNU) getopt() and you wish to set options to the command to be run, then you must supply the end of
options -- flag before the command.
EXAMPLES
openvt can be used to start a shell on the next free VT, by using the command:
openvt bash
To start the shell as a login shell, use:
openvt -l bash
To get a long listing you must supply the -- separator:
openvt -- ls -l
HISTORY
Earlier, openvt was called open. It was written by Jon Tombs <jon@gtex02.us.es or jon@robots.ox.ac.uk>. The -w idea is from "sam".
SEE ALSO
chvt(1), doshell(8), login(1)
19 Jul 1996 V1.4 OPENVT(1)