Hi Sam, Sorry for the delay. It's been a while since I had the time to work on this. Changing the center and width didn't work. Interestingly, changing the number of mpi processes did. I was originally using 24 processes, and it was failing when the value of bottom_id in the function get_reduce_owners() in amr_kdtree.py reached 32. I did some testing, and it always worked when I used 16 processes or less. Sometimes higher numbers would work, but that depended on the input file. For instance, with one input file, it worked on 18 processes, but with a different input file, it didn't. Both the input files I tested were Flash hdf5 files, but with different levels of refinement. Also, I'm not sure if this is related, but when I'm using the ipython notebook and I try to do if yt.is_root() cam.show() or if yt.is_root() cam.snapshot() these both cause the engines to hang. I can call cam.show() or cam.snapshot(), and they work just fine, as long as I'm calling it on all processes. But as soon as I restrict to to just root, it hangs. I appreciate any help you could give me. For now, I'm just making sure to only use 16 processes, but that doesn't seem like a good long-term solution. Thanks, Daniel 2014-11-03 15:42 GMT-05:00 Sam Skillman <samskillman@gmail.com>:

Hi Daniel,

Could you try a different center and width argument? Something like: c = ds.domain_center W = ds.domain_width.max()

Sam

On Fri Oct 31 2014 at 5:49:23 AM Daniel Fenn <dsfenn@gmail.com> wrote:

...

Hi,

I'm trying to do the simple volume rendering from the cookbook. The data is FLASH HDF5 data, and I'm using version 3.0.2 of yt. The script I'm running is here:

http://paste.yt-project.org/show/5183/

However, I'm getting the following error:

http://paste.yt-project.org/show/5184/

I guess it has something to do with the AMR tree, but unfortunately I don't know a lot about the specifics of that.

Could anyone offer any insight into this problem?

Thanks,

Daniel _______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

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