Hi Stephen,

I agree that this information, specifically the current number of star particles, should be easy to get at.  Maybe the solution should be on the enzo side instead of the yt side, as in maybe enzo should be carrying that around as a variable that can easily be made an attribute to the pf or put in the pf.parameters dict.  I'm just wondering if that may just be easier.  Just a thought.

Britton

On Fri, Dec 10, 2010 at 7:28 PM, Stephen Skory <stephenskory@yahoo.com> wrote:
Hi all,

after my conversation on -users with Matt, and the recent investigations of inline yt, a thought occurs to me. The whole point of the conversation was that I would like to do some inline analysis of a simulation with star(s). As a zero-order test, the analysis shouldn't run if there are no stars, so I wanted to find out how many stars there are. But as the conversation revealed, it isn't simple/blindingly obvious to do that kind of calculation in a way that works in serial, parallel, and inline, e.g. with derived quantities.

How do we feel about my writing a set of convenience functions that make these simple calculations easy? This shouldn't be comprehensive, just things that might come up often. Thoughts?

 Stephen Skory
stephenskory@yahoo.com
http://stephenskory.com/
510.621.3687 (google voice)
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