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Full Discussion: Parallel Execution on Multiple System
Special Forums UNIX and Linux Applications High Performance Computing Parallel Execution on Multiple System Post 302297853 by 123an on Monday 16th of March 2009 02:33:05 AM
Old 03-16-2009
Further Information about parallel execution
Quote:
Originally Posted by 123an
Hi Neo and otheus,

Thanks for ur valuable replies....

I am currently exploring all options suggested here....


Thanks...

123an

Hi,

Thanks for ur replies...

I am trying to simulate the environment whatever has been discussed here using ssh.
I am facing following problem while using ssh. The same is explained below..

case1: ssh -f <machine_ip> <executable1> <arguments>
Here, arguments are listed in file and those wil be read during execution. In this scenario, the parallel execution works fine.

case2: ssh -f <machine_ip> <cp file1 file2> <executable2>
Here, the executable in 'case 2' won't take command line arguments as in case of 'case 1', i.e. executable wil always read input arguments from file with name "args".
so what i tried here is i have created multiple text files with different arguments, during ssh i tried to copy these text files to file "args" and tried to execute "executable 2". But i am receving an error saying "Cannot fork into background without a command to execute.".

Can anybody suggest me the solution for this???

Thanks,
123an
 

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LEARN ABOUT DEBIAN

gnome-ssh-askpass

GNOME-SSH-ASKPASS(1)					      General Commands Manual					      GNOME-SSH-ASKPASS(1)

NAME

       gnome-ssh-askpass - prompts a user for a passphrase using GNOME

SYNOPSIS

       gnome-ssh-askpass

DESCRIPTION

       gnome-ssh-askpass  is  a GNOME-based passphrase dialog for use with OpenSSH.  It is intended to be called by the ssh-add(1) program and not
       invoked directly.  It allows ssh-add(1) to obtain a passphrase from a user, even if not connected to a terminal (assuming that an X display
       is  available).	This happens automatically in the case where ssh-add is invoked from one's ~/.xsession or as one of the GNOME startup pro-
       grams, for example.

       In order to be called automatically by ssh-add, gnome-ssh-askpass should be installed as /usr/bin/ssh-askpass.

ENVIRONMENT VARIABLES

       The following environment variables are recognized:

       GNOME_SSH_ASKPASS_GRAB_SERVER
	      Causes gnome-ssh-askpass to grab the X server before asking for a passphrase.

       GNOME_SSH_ASKPASS_GRAB_POINTER
	      Causes gnome-ssh-askpass to grab the mouse pointer using gdk_pointer_grab() before asking for a passphrase.

       Regardless of whether either of these environment variables is set, gnome-ssh-askpass will grab the keyboard using gdk_keyboard_grab().

AUTHOR

       This manual page was written by Colin Watson <cjwatson@debian.org> for the Debian system (but may be used by others).  It was based on that
       for x11-ssh-askpass by Philip Hands.

															      GNOME-SSH-ASKPASS(1)
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