[yt-users] problems installing rockstar with yt+anaconda

[Matthew Turk]

Hi Brian,

You have to rebuild yt, with the rockstar.cfg file pointing at your
Rockstar source directory, to get it to build the support libs.

On Tue, Aug 11, 2015 at 7:08 AM, Brian O'Shea <bwoshea at gmail.com> wrote:
> Hi folks,
>
> I'm using Enzo on Blue Waters, and to get it working I needed to install
> anaconda and then install yt-3 from source (i.e., by 'hg clone
> https://bitbucket.org/yt_analysis/yt' and then 'python setup.py develop').
>
> This does not install rockstar by default, unfortunately, and I am having
> trouble getting rockstar working (although yt itself works great).  I've
> tried to essentially mimic the rockstar portion of the install script for
> yt-3 (https://bitbucket.org/yt_analysis/yt/raw/yt/doc/install_script.sh) by
> doing the following:
>
>> hg clone http://bitbucket.org/MatthewTurk/rockstar
>> hg pull
>> hg up -C tip
>> make lib
>> cp librockstar.so  ~/local_lib/lib/.
>
> and then pointing to ~/local_lib/lib with LD_LIBRARY_PATH (using the full
> path, not the '~/' convention).  However, even when I do this I still can't
> seem to persuade the rockstar interface code in yt to find rockstar.
> Attempting to import rockstar in a script by:
>
> from yt.analysis_modules.halo_finding.rockstar.api import RockstarHaloFinder
>
> results in this error:
>
> ImportError    : from .rockstar import RockstarHaloFinder
> cannot import name rockstar_interface
>
> and the script immediately exits.  When I look at the directory
> yt/analysis_modules/halo_finding/rockstar in a version of yt that has been
> installed from a script, there are some additional .so files
> (rockstar_groupies.so and rockstar_interface.so) that aren't in my source
> install, even when I've run 'python setup.py develop' in that directory.
>
> I feel like I'm doing something obviously wrong here.  Any suggestions?
>
> Thanks!
>
> --Brian
>
>
>
>
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