[yt-users] halos

[gso at physics.ucsd.edu]

When working with Robert's data in his readable but not write-able
directories, I usually store the data this way:

for i in range(1, 5, 1):
    pf = load(basename[i]+filename[i], storage_filename =filename[i]+".yt")

    halo_list = parallelHF(pf, threshold=80.0, dm_only=True, resize=False,
        rearrange=True, safety=1.5, premerge=True)

    halo_list.write_out(filename[i]+"ParallelHopAnalysis.out")

the storage_filename I can specify so the .yt file can be in another
directory than where the data sits, and the
filename[i]+"ParallelHopAnalysis.out" lets me output to another directory
than where the data sits... worked for me on Triton at least.

--------------------------------------------

Stephen, I would like to be able to calculate the a, b, c in the eqn of an
ellipsoid for the stars/dm particles in a Halo, and see how much mass is
in particles, and how much is in baryons.  If I have the prescription to
do the calculation, can this be easily achieved if I have access to the
halo data if it was stored as binary in the .yt file?  Or would this be
better done while it is still  in memory with the halo profiler running?

From
G.S.


> Molly,
>
>> Right ... I spoke too soon, sorry.  Now the halo profiler isn't
>> crashing, per se, but since I'm analyzing output in one of Matt's
>> directories, it's trying to save the HopAnalysis.out file to that
>> directory and can't,
>
>
> I think that unfortunately the HaloProfiler is hard-coded to save the
> HopAnalysis file to the data directory (Britton, am I wrong?). You can set
> the other output directories (look for profile_output_dir and
> projection_output_dir in
> http://yt.enzotools.org/doc/analysis_modules/halo_profiling.html), but I
> don't see a parameter for the HopAnalysis file.
>
>
>
> Stephen Skory
> stephenskory at yahoo.com
> http://stephenskory.com/
> 510.621.3687 (google voice)
>
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