[yt-dev] rockstar halo finder

[Matthew Turk]

Sorry, Stephen, this looks like it might be a tricky business with
your environment; what you described works for me, or has in the past.
 I'd recommend you use the tools at your disposal -- "otool -L", ldd,
etc etc, as well as (if you're on OSX) using DYLD_DEBUG or (linux)
LD_DEBUG to figure out why it's not finding the library.  Check it
against the Cython-generated rockstar wrapper .so files.

Rockstar support is still somewhat in beta, and so shaking it out like
this is probably going to be necessary.  If we can record your
struggles with getting it running, and then figure out the best way to
use it, that will be very valuable moving forward.

-Matt

On Wed, Aug 15, 2012 at 4:27 PM, Stephen Skory <s at skory.us> wrote:
> Hi Chris,
>
>> However, I don't think we ever added a Rockstar installation option to the
>> install script, despite the docs text. Does Rockstar without modification
>> work for you?
>
> I'm trying the unmodified version, but it's not working. Perhaps I've
> done something wrong:
>
> 1. I downloaded this
> http://code.google.com/p/rockstar/downloads/detail?name=rockstar-0.99.tar.gz&can=2&q=,
> untarred it.
> 2. Inside that directory I did "make lib". There is a "librockstar.so"
> file there now.
> 3. I "export ROCKSTAR_DIR=..." to this rockstar directory, and "export
> LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ROCKSTAR_DIR".
> 4. I went into the top level dir of yt and did "python setup.py
> build_ext -i", then "python setup.py install".
> 5. I am using the sample script provided in the doc with only small
> modifications specific to my dataset.
>
> After doing this, I am getting this error: "Library not loaded:
> librockstar.so" when I try running the script. Can you see what I've
> done wrong?
>
> Thanks!
>
> --
> Stephen Skory
> s at skory.us
> http://stephenskory.com/
> 510.621.3687 (google voice)
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