Re: galaxy collision demo

From: Douglas/Lesli Summerstay <dsummerstay_at_gmail.com>
Date: Mon, 21 Sep 2009 11:06:05 -0400

Jay,
I imagine it may be, as you say, some kind of compilation error on my part.
 It is running, using up CPU, but not generating even the first snapshot in
galaxy/ . Any idea the nature of the error you had? Or suggestions on how to
track it down? Unfortunately I need the 3D position data, not just the
video.
Thanks again.

Douglas

On Mon, Sep 21, 2009 at 10:51 AM, Jay Billings <jayjaybillings_at_gmail.com>wrote:

> Douglas,
>
> You are correct that you should see a snapshot at t=0 for the test problem.
> Did you look in the galaxy/ directory? The snapshots are stored there.
>
> The test problem with default settings only outputs six or seven snapshot
> files from t=0 to t=3.0. I'm a bit concerned that it has taken "days"
> without creating any snapshot files; that test problem runs in 15 minutes on
> my quad core machine and in about an hour on my old P4. When I first started
> working with Gadget2 I encountered a similar problem to yours and it turned
> out to be a compile error.
>
> If you are only interested in videos, you might check out my youtube page:
> http://www.youtube.com/jayjaybillings . These are videos of a different
> simulation.
>
> Jay
>
> On Mon, Sep 21, 2009 at 10:39 AM, Douglas/Lesli Summerstay <
> dsummerstay_at_gmail.com> wrote:
>
>> I am trying to run the galaxy collision sample and had a few questions:I
>> am trying to run it on a single processor. How long should I expect to
>> wait before seeing any output snapshot files? (I am using the default
>> parameter file.) I left it running for days without seeing any snapshot
>> files created. This seems odd because the first snapshot is supposed to be
>> created at time 0. Any idea why no snapshot files are being
>> created? Alternately, could anyone run this simulation and make the snapshot
>> files available to me?
>> Are the pictures of colliding galaxies on the Gadget site (
>> http://www.mpa-garching.mpg.de/gadget/collision/index.html ) from this
>> simulation?
>>
>> Thanks for your help.
>>
>> --
>> http://dsummerstay.googlepages.com
>>
>>
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>
>
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-- 
http://dsummerstay.googlepages.com
Received on 2009-09-21 17:06:26

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