[astro] Re: conjugate gradient descent stuff

[Travis Desell]

Not quite sure yet, but at least i know where it is.  When i'm done 
converting the salsa line search to
c i should know what was wrong.

--Travis


Nathan Cole wrote:
> what was the problem?
>
> ~Nate~
>
> ==============Original message text===============
> On Thu, 21 Jun 2007 18:12:57 EDT Travis Desell wrote:
>
> I've figured out the problem with the CGD not converging as fast as it 
> should, and it's a problem with the
> line search function.  I have sum of squares working in salsa, and it's 
> finishing in under 30 iterations every
> time, while gradient descent takes 70-100.  Once we can figure out why 
> the astronomy stuff in the MPI
> version is hanging i can start to get some results on the bluegene.
>
> --Travis
>
>
>
> Nathan Cole wrote:
>   
>> yes I can still use the machines in the wcl, just not the cluster machines.
>>
>> ~Nate~
>>
>> ==============Original message text===============
>> On Thu, 21 Jun 2007 13:41:30 EDT Heidi Newberg wrote:
>>
>>
>> Nate,
>>
>>        Are you still able to work on the 16 machines?
>>
>> Heidi
>>
>> Nathan Cole wrote:
>>   
>>     
>>> ==============Original message text===============
>>> From: NATS <labstaff at cs.rpi.edu>
>>> Date: Thu, 21 Jun 2007 13:07:29 EDT
>>> Subject: [TICKET #15849] Can't log into CVS
>>>
>>> This is an automated email notification of an updated ticket:
>>>
>>>
>>> From: lindss2 at cs.rpi.edu, 2007-06-21 13:07:28.637707
>>> The machines in the CII will be down for about a week due to cooling work 
>>> being done.  We don't have a firm date for when they'll be back in service 
>>> but they'll let us know when they're done.
>>>
>>> Steven Lindsey               Research Programmer / Systems Administrator
>>> lindss2 at cs.rpi.edu           Department of Computer Science
>>> Lally 301                    Rensselaer Polytechnic Institute
>>>
>>>
>>>
>>>
>>>  - labstaff at cs.rpi.edu
>>>
>>>
>>>   
>>>     
>>>       
>>   
>>     
>
>
>   


-- 
----------------------------------------------------------------------------------------------------------
Travis Desell
<deselt @ cs.rpi.edu>
1-518-878-7424
Worldwide Computing Laboratory ( http://wcl.cs.rpi.edu/ )
Rensselaer Polytechnic Institute, 110 8th Street, Troy NY 12180, USA
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