[Yt-dev] possible bug?

Eric Hallman hallman13 at gmail.com
Mon Apr 5 12:57:19 PDT 2010


I'll try those.  Not sure how to tell bisect which version is "good"  
though.  How do I specify versions?  How do I know which one worked?


On Apr 5, 2010, at 3:01 PM, Britton Smith wrote:

> I'm a bit more confused that it's also happening in serial, but that  
> will make debugging easier.  Let us know when you track down the  
> last working version.  In fact, if you just want to insert a couple  
> print statements into the write_filtered_list routine in  
> HaloProfiler.py, you might be able to figure out just where it's  
> hanging up.
>
> Britton
>
> On Mon, Apr 5, 2010 at 12:43 PM, Eric Hallman <hallman13 at gmail.com>  
> wrote:
> Guys,
>   thanks for the help.  I was stuck on where to go next.
>
> This is breaking in the same way in serial or parallel.  Don't know  
> if that helps in diagnosing or not.  It is apparently writing the  
> virial_filter.out file.
>
> I will go back to a working version.  For sure it was working as  
> recently as about a month ago.
>
>
> On Apr 5, 2010, at 1:49 PM, Britton Smith wrote:
>
>> Hi Eric,
>>
>> Matt's suggestion would be helpful.  If you were running the code  
>> successfully at any time recently, it should be simple to track  
>> down the revision where it breaks.
>> Does the halo filter list actually get written out?  I assume this  
>> is only hanging when running in parallel, but correct me if I'm  
>> wrong on that.  Looking at the light cone and halo profiler code,  
>> the function where the hang occurs is called from functions that  
>> have various parallel decorators around them, which are probably  
>> adding a number of barriers.
>>
>> Britton
>>
>> On Mon, Apr 5, 2010 at 11:35 AM, Matthew Turk  
>> <matthewturk at gmail.com> wrote:
>> Eric, if you can run "hg bisect" (see the hg book online) to  
>> identify the revision this started at, that would be very handy. I  
>> would start b going back only a dozen or so. Does this problem  
>> occur on smaller datasets on, say your laptop or desktop?
>>
>>
>>
>>
>> On Apr 5, 2010, at 10:14 AM, Eric Hallman <hallman13 at gmail.com>  
>> wrote:
>>
>> I am getting a hang when I run the lightcone tools on ranger, and  
>> no debug info is coming out at the hang. this is in the hg version  
>> (current) of yt.
>>
>> The routines I'm running is called test_vel_mask.py, which is  
>> creating a lightcone with a halo map that includes the bulk line of  
>> sight halo velocity.  It includes  a slight modification of  
>> HaloMask.py to include velocities.  However, I removed my changes,  
>> and ran again with the same hang. The routine below is copied  
>> nearly directly from the yt docs, with minor changes.
>>
>> Routine is attached as test_wo_vel.py
>> <test_wo_vel.py>
>>
>>
>>
>> Hang occurs with text line:
>> yt.lagos   INFO       2010-04-05 12:06:15,657 Writing filtered halo  
>> list to /scratch/00688/tg458377/box_size_study/50Mpc_1024/ 
>> run_12_cl_5D/RD0004/virial_filter.out.
>>
>> traceback is attached as test_vel_traceback.out
>>
>> <test_vel_traceback.out>
>>
>>
>>
>>
>> Thanks for any help...
>>
>> cheers
>>
>> Eric Hallman
>> Google Voice: (774) 469-0278
>> hallman13 at gmail.com
>>
>>
>>
>>
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>
> Eric Hallman
> Google Voice: (774) 469-0278
> hallman13 at gmail.com
>
>
>
>
>
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Eric Hallman
Google Voice: (774) 469-0278
hallman13 at gmail.com




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