[yt-users] Greeting and questions.

[Martín Mestre]

Dear yt community,

a week ago I knew about this project and after reading a small part of the
manual, the mission statement and the code of conduct I got encouraged to
try to learn yt (and python). I would be very glad if I could use yt to
study the structure of some disrupted satellites that I evolved with
Gadget-2 (dark matter only).

I have installed yt and made a simple halo catalog but I am not sure if I
have proceeded correctly. I have written some questions below. Thank you
very much in advance for any answer or suggestion.

Best regards from La Plata, Argentina,

Martín Mestre


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INSTALLATION

The Host information is: Linux seminare 2.6.37.1-mosix #2 SMP Tue Apr 19
12:57:51 ART 2011 x86_64 GNU/Linux.
I installed yt 3.2.3 as a simple cluster user in my home directory with the
installation script. I have run the script a second time setting the
option: INST_ROCKSTAR=1.

The installation log is too large for the pastebin. I have only pasted
the lines with the words "error" and "Error" respectively in the links:
http://paste.yt-project.org/show/6657/ and
http://paste.yt-project.org/show/6658/ .

The first/last 400 lines of the log are here:
http://paste.yt-project.org/show/6659/ and
http://paste.yt-project.org/show/6660/ .

How could I proceed to eliminate these errors ?


-----------------------------------------------------------
LOADING GADGET-2 SNAPSHOT IN BINARY FORMAT
AND COMPUTATION OF HALO CATALOG

I have run the following scritp:
http://paste.yt-project.org/show/6661/
and the log files was:
http://paste.yt-project.org/show/6662/
I would like to know if everything looks right in the log file.

I wasn't able to upload the image file (36KB), saying:
ERROR HTTP Error 404: Not Found

I will be willing to send it by email because I have
a question to do about the use of the halo finder.
It found 8 halos, one of them many orders of magnitude more
 massive than the rest. This was expected because it identifies
the stream progenitor. The location of this halo is much closer
to the centre of mass of the whole ensemble than to the point
of maximum density (which I had previusly found through the
method of the "shrinking spheres").
Is there any scale parameter of the halo finder that allows me
to identify halo centres as the points of local maxima of the
volumetric density ?
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