[yt-users] Hop in parallel?

Matthew Turk matthewturk at gmail.com
Fri Feb 24 17:17:36 PST 2012


Hi Mike,

This just leaves the parallelHF too-short-iterator, right?  That error
in this context means that an exception was thrown in the iterator.  I
wasn't able to reproduce it on your dataset ... if you change it to be
expaned rather than an iterator, it should show where and what the
exception is.

-Matt

On Fri, Feb 24, 2012 at 8:10 PM, Michael Kuhlen <mqk at astro.berkeley.edu> wrote:
> Same here. Thanks for the quick fix.
>
> Mike
>
>
> On Fri, Feb 24, 2012 at 4:31 PM, Geoffrey So <gsiisg at gmail.com> wrote:
>> That fixed it for me, I get identical haloes now running HOP in serial and
>> parallel from the 64 cube test dataset.
>>
>> From
>> G.S.
>>
>>
>> On Fri, Feb 24, 2012 at 4:20 PM, Stephen Skory <s at skory.us> wrote:
>>>
>>> Hi Mike,
>>>
>>> I think I've fixed the original HOP problem you had. It's in my yt branch
>>> here:
>>>
>>> https://bitbucket.org/sskory/yt/overview
>>>
>>> could you try with the HOP (HaloFinder) with the new changes? Let me
>>> know, and if it works for you, it will go into the main branch.
>>>
>>> With regards to your new problem, I tried the same swap of methods of
>>> calculating "total_mass" that we did in the HaloFinder, but I think
>>> there's something screwy going on with  .quantities, and I haven't
>>> been able to track it down yet.
>>>
>>> With regards to speed, in general HaloFinder will be faster on all
>>> datasets than parallelHF for datasets that HaloFinder can handle. But
>>> HaloFinder is limited by the size of the dataset and by the cosmology
>>> of the dataset (small cosmologies mean that a large padding is needed
>>> when running in parallel, and this will defeat the point of
>>> parallelism).
>>>
>>>
>>> --
>>> Stephen Skory
>>> s at skory.us
>>> http://stephenskory.com/
>>> 510.621.3687 (google voice)
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
>>
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>
>
>
> --
> *********************************************************************
> *                                                                   *
> *  Dr. Michael Kuhlen              Theoretical Astrophysics Center  *
> *  email: mqk at astro.berkeley.edu   UC Berkeley                      *
> *  cell phone: (831) 588-1468      B-116 Hearst Field Annex # 3411  *
> *  skype username: mikekuhlen      Berkeley, CA 94720               *
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