[yt-users] Star particles error

[Fernando Becerra]

Thank you very much Stephen. I'll be waiting for Matt's reply.
Also, thanks for solving the bug using SFR. Actually it was the next question I'll ask once I solve the "creation-time" problem.

Regards,
Fernando.


On Jan 3, 2012, at 8:50 PM, Stephen Skory wrote:

> Fernando and Matt,
> 
> Fernando sent me one of his datasets and I think I know what's going
> on. The dataset I'm looking at (g1e10s1e11dm1e12_0088) has 1449 grids,
> but only 21 of them have (star) particles in them. Normally, when yt
> first opens an enzo dataset and there is no .yt file in the directory,
> it opens 20 semi-randomly chosen grids to see what fields exist in the
> dataset. The assumption is that if these 20 grids are well-spaced
> enough over all the levels, it should see all the fields in the
> collective set of grids. From this, it builds a list of fields
> (pf.h.field_list) and derived fields (pf.h.derived_field_list).
> 
> If I force yt to check all the grids (by modifiying
> yt/frontends/enzo/data_structures.py) for fields on Fernando's
> dataset, the particle fields work, and I got Fernando's SFR script at
> the very top to work (modulo a bug I discovered in the cylinder object
> volume calculation. I just pushed a fix and it should be in the
> development copy of yt soon. Perhaps the same time as a fix for this
> field list issue is also made available).
> 
> Matt - what do you think is the best solution for this? Add a ytcfg
> parameter so users with datasets like this can simply tell yt to check
> all grids for fields?
> 
> --
> Stephen Skory
> s at skory.us
> http://stephenskory.com/
> 510.621.3687 (google voice)
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