[yt-users] Problems with RAMSES output

[Matthew Turk]

Hi Sam,

On Mon, Apr 25, 2011 at 10:29 AM, Sam Geen <samgeen at astro.ox.ac.uk> wrote:
> Ah, looks like I misinterpreted this - I guess "load" works for Ramses now?

I think it ought to; it worked for me.  I'm actually experimenting
with a test dataset right now, the Aquarius output00193 dataset that
Pymses provides.  It's relatively small (1.2e7 total cells after
regridding, 64 processors) but I am able to slice in 3 seconds and
project in 14; the regridding takes almost no time at all.

Perhaps adding particles and optimizing things might be more
approachable than I expected.  Are you signed up for yt-dev?  We
should perhaps flesh this out over there.  (I had on my schedule today
a reply to our off-list email exchange from a few weeks ago, by the
way, but this came up before I had the opportunity to continue it.)

My test script, for what it's worth, is here:
http://paste.enzotools.org/show/1595/

Best,

Matt

>
> On 25/04/2011 15:26, Sam Geen wrote:
>
> Hi Matteo,
>
> I had this problem - try using RAMSESStaticOutput instead of load. In my
> experience, YT needs some optimisation with Ramses in any case, but if your
> simulation is only DM then it might load faster than mine did (no idea about
> the halos, but I think Matt has answered this).
>
> And yes, I'm definitely interested in writing some decent simulation
> collection classes in C++ that can be plugged into YT once my current
> project is winding down. You might want to check out Pymses
> (http://irfu.cea.fr/Projets/PYMSES/intro.html) for something that makes a
> very good start at this natively in Python.
>
> Cheers,
> Sam
>
> On 25/04/2011 15:11, Matteo Tomassetti wrote:
>
> Hi there,
> after installing yt I tried to import the result of my Ramses simulation
> with this code:
> from yt.mods import *
> pf = load("output_00007/info_00007.txt")
> print pf.h.field_list
> print pf.h.derived_field_list
> but ... it doesn't work! My simulation consists only of DM for now and yt is
> searching for hydro files that of course does not exists. I just wanted to
> find DM halos but it seems that yt does not support this function for RAMSES
> data yet, does it?
> cheers,
> Matteo
>
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