[yt-users] Problems reading GADGET 2 Binary datafile using yt

[Alankar Dutta]

Hello YT-community,

I have been trying to use yt for analysis of the output from a GADGET 2
simulation stored as an Unformatted Fortran Binary. It consists of files
named as snapshot_068 which is divided into 1024 subfiles named as
snapshot_068.0, snapshot_068.1 and so on. Whenever I am loading this with
yt I am getting the following error message and I have got no idea as to
how to fix this. I have also tried reading only one subfile of this multi
part snapshot but with no success. I am relying on the community to help me
in this regard.

My code:

fname = 'snapdir_068/snapshot_068'
ds = yt.load(fname)

Error displayed:

yt : [ERROR    ] 2017-02-22 21:55:34,587 None of the arguments provided to
load() is a valid file
yt : [ERROR    ] 2017-02-22 21:55:34,587 Please check that you have used a
correct path
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File
"/home/alankar/anaconda3/lib/python3.5/site-packages/yt/convenience.py",
line 76, in load
    raise YTOutputNotIdentified(args, kwargs)
yt.utilities.exceptions.YTOutputNotIdentified: Supplied ('snapshot_068',)
{}, but could not load!




#Trying to read only one of the multi part file
My code:

fname = 'snapdir_068/snapshot_068.0'
ds = yt.load(fname)

Error displayed:

yt : [ERROR    ] 2017-02-22 21:57:17,625 Couldn't figure out output type
for /media/alankar/Seagate Expansion
Drive/mb2/snapshots/snapdir_068/snapshot_068.0
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File
"/home/alankar/anaconda3/lib/python3.5/site-packages/yt/convenience.py",
line 98, in load
    raise YTOutputNotIdentified(args, kwargs)
yt.utilities.exceptions.YTOutputNotIdentified: Supplied ('snapshot_068.0',)
{}, but could not load!


Cheers,
Alankar
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