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

[Christine Simpson]

Hi Munier,

Could it also be that the creation times of particles are somehow being corrupted?  The star analysis module relies on the creation times to do its summing etc.  So is it possible that the same star particle could have different creation times in different outputs.  As long as those times are greater than 0, the kind of simple sum that Stephen (and I earlier) showed you would pick them up, but the kind of time-binned analysis that the star analysis module does would show discrepancies.

Christine

On Mar 5, 2013, at 3:36 PM, Munier Azzam Salem wrote:

> Alright, I'll take a look.
> 
> 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.
> 
> 
> On Tue, Mar 5, 2013 at 3:34 PM, Stephen Skory <s at skory.us> wrote:
> Hi Munier,
> 
> >      Here is the cumulative mass, plotted from the same three data files.
> > It's clear particles are being lost ...
> 
> Aha! That is kind of what I was suspecting! So this looks like it
> might be an Enzo problem. I'd recommend trying to figure out what
> happened there. Perhaps there was an error during a restart or somehow
> two different simulations got mixed up? Good luck!
> 
> --
> Stephen Skory
> s at skory.us
> http://stephenskory.com/
> 510.621.3687 (google voice)
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> 
> 
> 
> -- 
> Munier A. Salem // 845.489.6450
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