Examine how to configure Secure Shell on IBM System p and System x computers to run commands in parallel in a cluster without being prompted for a password. This will allow you to perform activities more easily and quickly, and gives you flexibility to perform activities in parallel on more machines.
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Member since:
2005-07-06
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This article is taking two simple tools(ssh-keygen and dsh) and making it seem like some insane powerful parallel clustering tool.
In fact, the computers do not need to be System x or System p, or even IBM.
I use them all the time, for my non-clustered computers to do things like upgrading and installing new packages in parallel.
Member since:
2006-09-12
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I don't see anything happening in parellel in this article. Sequential, yes. Parallel, no. To do things in parallel, you would need to background the processes, keep a list of jobs, and then as each job completes, you would probobly want to format the output so that each host's output is tagged with the host name.
Member since:
2006-09-13
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Download dsh from http://www.netfort.gr.jp/~dancer/software/dsh.html and it can run the commands in parallell.
Another nice application is c-term( http://www.debian.st/~victor/index.php?page=projects ) which can duplicate your input to several terminals(using XSendEvent)