On Fri, Nov 27, 2009 at 2:43 PM, Britton Smith <
brittonsmith@gmail.com> wrote:
> Hey everyone,
>
> The following error pertains to the yt branch of the hg repo.
>
> I'm getting a particle io error when using the various yt halo finders in
> parallel. It doesn't appear to have anything to do with the halo finders,
> but I don't know what else uses ParticleIO.py. This only happens when
> running in parallel.
>
> P000 yt INFO 2009-11-27 15:16:59,775 Getting ParticleMassMsun
> using ParticleIO
> Setting period equal to 1.000000
> Setting period equal to 1.000000
> Setting period equal to 1.000000
> Traceback (most recent call last):
> File "do_hop.py", line 5, in <module>
> h = FOFHaloFinder(pf)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/HaloFinding.py", line
> 1024, in __init__
> self._parse_halolist(1.)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/HaloFinding.py", line
> 747, in _parse_halolist
> this_max_dens = halo.maximum_density_location()
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/ParallelTools.py", line
> 130, in single_proc_results
> return func(self, *args, **kwargs)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/HaloFinding.py", line
> 322, in maximum_density_location
> return self.center_of_mass()
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/ParallelTools.py", line
> 130, in single_proc_results
> return func(self, *args, **kwargs)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/HaloFinding.py", line
> 306, in center_of_mass
> pm = self["ParticleMassMsun"]
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/ParallelTools.py", line
> 130, in single_proc_results
> return func(self, *args, **kwargs)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/HaloFinding.py", line
> 136, in __getitem__
> return self.data.particles[key][self.indices]
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/ParticleIO.py", line
> 46, in __getitem__
> self.get_data(key)
> File "/Users/britton/Documents/work/yt-hg/yt/lagos/ParticleIO.py", line
> 104, in get_data
> if len(to_add) != 1: raise KeyError
> KeyError
>
> I checked the contents of to_add, and it was a list with two items (hence
> the exception):
> ['particle_mass', 'particle_mass']
>
> I was able to get around this by removing non-unique entries in to_add, but
> I don't think that really fixes the underlying problem. Anyone have any
> ideas?
>
> Regards,
>
> Britton
>