[IPython-dev] SciPy Sprint summary

Justin Riley justin.t.riley@gmail....
Tue Jul 20 09:53:30 CDT 2010


On 07/19/2010 12:32 AM, Brian Granger wrote:
> Without mpi being required as I understand it.

Yes, no MPI involved with SGE/PBS/LSF support

> This is not that bad of an idea.  Remember that the furl file the
> engine uses is only between the engines and controller and this
> connection is not that vulnerable.  My only question is who can see
> the script?  I don't know PBS/SGE well enough to know where the script
> ends up and with what permissions.

So I decided to test this and found that SGE spools all job scripts into
a location in the $SGE_ROOT that is readable by everyone (at least for
my installation). Given that this is the case, it's probably best not to
store the contents of the furl file directly in the job script.

> Do you know anything about what SGE/PBS does with the script?  I
> honestly think this might not be a bad idea.  But, again, maybe for
> 0.10.1 this is not worth the effort because things will change so
> incredibly much with 0.11.

It's certainly a clever way to get around needing to transfer furl files
between hosts but I'd say not worth the effort given that it's not
completely secure.

~Justin


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