[CIG-MC] ssh and autocombine.py

Eh Tan tan2 at geodynamics.org
Wed Nov 4 12:57:14 PST 2009

Hi Robert,

At some point the script was renamed but the manual was not updated. The
correct name of the script should be visual/batchcombine.py. Seems you
have figure it out by yourself.

Regarding the error message, do you need to type password when ssh into
the nodes? If so, you will need to setup password-less login first.
Execute the command "ssh-keygen", and when asked for passphrase, just
press |<ENTER>| twice. Then try autocombine.py again.


Robert Moucha wrote:
> Hi All,
> Our cluster uses ssh instead of rsh. I followed the 3.1.1 manual instructions:
> "If your Beowulf cluster uses ssh (rather than rsh) to access the
> computation nodes, you must manually edit
> visual/batchpaste.sh and replace ‘rsh’ with ‘ssh’ in the script."
> However there is no batchpaste.sh in this directory.  I only have:
> getcoord.sh  getlog.sh  getsurf.sh
> I went into these and changed rsh to ssh, I also went into
> batchcombine.py and changed it to ssh.
> Now when I run autocombine.py I get logged into the first node on the
> list and nothing happens. I type exit and I get an error
> Traceback (most recent call last):
>   File "/home/moucha/software/cig/bin/pasteCitcomData.py", line 172, in ?
>     run(datadir, datafile, fields, rank, step, save_dir)
>   File "/home/moucha/software/cig/bin/pasteCitcomData.py", line 53, in run
>     paste(datadir, datafile, fields, rank, step, f)
>   File "/home/moucha/software/cig/bin/pasteCitcomData.py", line 68, in paste
>     f = open_file(datadir, datafile, infix, rank, step)
>   File "/home/moucha/software/cig/bin/pasteCitcomData.py", line 115,
> in open_file
>     f = open(filename, 'r')
> IOError: [Errno 2] No such file or directory:
> '/state/partition1/moucha2/citcoms/cookbook6.coord.0'
> and I log into the next node on list,  this goes on and on through all
> the nodes in my machine list.  By the way, the files do exist on these
> nodes.
> Thanks, again,
> Rob

Eh Tan
Staff Scientist
Computational Infrastructure for Geodynamics
California Institute of Technology, 158-79
Pasadena, CA 91125
(626) 395-1693

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