[yt-users] Trouble with SFR plots of enzo data

[Matthew Turk]

Using the Enzo parameter ParticleTypeInFile sidesteps this, but I believe
it is only inconsistently used in yt.
On Mar 5, 2013 12:49 PM, "Munier Azzam Salem" <msalem at astro.columbia.edu>
wrote:

> Okay, this is very interesting:
>
> I printed dd["creation_time"] for the 10th data dump (last before
> restarting enzo) and the 11th and 12th (just after restarting). The former
> has all non-zero creation times. The other two have many, many zeroed out
> creation times. My theory is this IS enzo's fault, and that it's zeroing
> out the creation time when it loads in data for a restart run.
>
> My ham-fisted method of opening each file and summing all particle masses
> got around this because I wasn't checking creation time > 0.0. I can get
> away with this because I do not have live dark matter, but in general this
> should be fixed (in enzo).
>
>
> On Tue, Mar 5, 2013 at 3:41 PM, Stephen Skory <s at skory.us> wrote:
>
>> > But, I should emphasize that when I open each individual data file, sum
>> the
>> > particle masses, and plot, the total mass increases monotonically over
>> time,
>> > and agrees well with the decrease in gas mass. It's only when I analyze
>> via
>> > the star formation module that I see the jump.
>>
>> Ah, maybe I'm jumping the gun on blaming Enzo. You can do your own
>> simple tests for the star particle mass like this outside of the star
>> particle analysis module:
>>
>> dd = pf.h.all_data()
>> ct = dd['creation_time']
>> sel = (ct > 0)
>> pm = dd['ParticleMassMsun'][sel]
>> total_pm = pm.sum()
>>
>> Can you tell me if total_pm makes sense across your datasets?
>>
>>
>> --
>> Stephen Skory
>> s at skory.us
>> http://stephenskory.com/
>> 510.621.3687 (google voice)
>> _______________________________________________
>> yt-users mailing list
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>>
>>
>
>
> --
> Munier A. Salem // 845.489.6450
>
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