[IPython-dev] SciPy Sprint summary

Brian Granger ellisonbg@gmail....
Sat Jul 17 23:00:19 CDT 2010


On Sat, Jul 17, 2010 at 6:23 AM, Satrajit Ghosh <satra@mit.edu> wrote:
> hi ,
>
> i've pushed my changes to:
>
> http://github.com/satra/ipython/tree/0.10.1-sge
>
> notes:
>
> 1. it starts cleanly. i can connect and execute things. when i kill using
> ctrl-c, the messages appear to indicate that everything shut down well.
> however, the sge ipengine jobs are still running.

What version of Python and Twisted are you running?

> 2. the pbs option appears to require mpi to be present. i don't think one
> can launch multiple engines using pbs without mpi or without the workaround
> i've applied to the sge engine. basically it submits an sge job for each
> engine that i want to run. i would love to know if a single job can launch
> multiple engines on a sge/pbs cluster without mpi.

I think you are right that pbs needs to use mpirun/mpiexec to start
multiple engines using a single PBS job.  I am not that familiar with
SGE, can you start mulitple processes without mpi and with just a
single SGE job?  If so, let's try to get that working.

Cheers,

Brian

> cheers,
>
> satra
>
> On Thu, Jul 15, 2010 at 8:55 PM, Satrajit Ghosh <satra@mit.edu> wrote:
>>
>> hi justin,
>>
>> i hope to test it out tonight. from what fernando and i discussed, this
>> should be relatively straightforward. once i'm done i'll push it to my fork
>> of ipython and announce it here for others to test.
>>
>> cheers,
>>
>> satra
>>
>>
>> On Thu, Jul 15, 2010 at 4:33 PM, Justin Riley <justin.t.riley@gmail.com>
>> wrote:
>>>
>>> This is great news. Right now StarCluster just takes advantage of
>>> password-less ssh already being installed and runs:
>>>
>>> $ ipcluster ssh --clusterfile /path/to/cluster_file.py
>>>
>>> This works fine for now, however, having SGE support would allow
>>> ipcluster's load to be accounted for by the queue.
>>>
>>> Is Satra on the list? I have experience with SGE and could help with the
>>> code if needed. I can also help test this functionality.
>>>
>>> ~Justin
>>>
>>> On 07/15/2010 03:34 PM, Fernando Perez wrote:
>>> > On Thu, Jul 15, 2010 at 10:34 AM, Brian Granger <ellisonbg@gmail.com>
>>> > wrote:
>>> >> Thanks for the post.  You should also know that it looks like someone
>>> >> is going to add native SGE support to ipcluster for 0.10.1.
>>> >
>>> > Yes, Satra and I went over this last night in detail (thanks to Brian
>>> > for the pointers), and he said he might actually already have some
>>> > code for it.  I suspect we'll get this in soon.
>>> >
>>> > Cheers,
>>> >
>>> > f
>>>
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>>
>
>
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>



-- 
Brian E. Granger, Ph.D.
Assistant Professor of Physics
Cal Poly State University, San Luis Obispo
bgranger@calpoly.edu
ellisonbg@gmail.com


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