MPI_Init: NumberOfProcessors = 1
warning: the following parameter line was not interpreted:
CRModel                     = 1 //Instantaneous Acceleration
WARNING! Setting MetaData.PPMDiffusionParameter = 0
Output to Global Dir /Users/dev/research/galaxy_particles/little_cluster
magnetic field: dim 0, 0.090895 0.000000e+00
magnetic field: dim 1, 0.090895 0.000000e+00
magnetic field: dim 2, 0.090895 0.000000e+00
CosmologySimulation: Initializing grid 0
Standard Serial I/O
CosmologySimulation: Initializing grid 1
Standard Serial I/O
CosmologySimulation: Initializing grid 2
Standard Serial I/O
Successfully read in parameter file 256amr_twonest.param.
INITIALIZATION TIME =   2.22777128e-01
Registering plugin PrintingFromPython so we have 0 plugins.
Registering PrintingFromPython for Python Event
Continuation Flag = 1
REDSHIFT dump: dumpdirname=(/Users/dev/research/galaxy_particles/little_cluster/RD0000) == unixresult=0
Continuation Flag = 1
TopGrid dt = 2.449486e-02     time = 0.81651279049634    cycle = 0    z = 99
TopGrid dt = 2.522969e-02     time = 0.84100765447225    cycle = 1    z = 97.048740918612
yt : [INFO     ] 2013-12-19 19:39:54,260 Parameters: current_time              = 0.866237347377
yt : [INFO     ] 2013-12-19 19:39:54,260 Parameters: domain_dimensions         = [64 64 64]
yt : [INFO     ] 2013-12-19 19:39:54,260 Parameters: domain_left_edge          = [ 0.  0.  0.]
yt : [INFO     ] 2013-12-19 19:39:54,261 Parameters: domain_right_edge         = [ 1.  1.  1.]
yt : [INFO     ] 2013-12-19 19:39:54,261 Parameters: cosmological_simulation   = 1
yt : [INFO     ] 2013-12-19 19:39:54,261 Parameters: current_redshift          = 95.1355559525
yt : [INFO     ] 2013-12-19 19:39:54,261 Parameters: omega_lambda              = 0.732
yt : [INFO     ] 2013-12-19 19:39:54,261 Parameters: omega_matter              = 0.268
yt : [INFO     ] 2013-12-19 19:39:54,262 Parameters: hubble_constant           = 0.704
yt : [INFO     ] 2013-12-19 19:39:54,262 Parameters: current_time              = 0.866237347377
yt : [INFO     ] 2013-12-19 19:39:54,262 Parameters: domain_dimensions         = [64 64 64]
yt : [INFO     ] 2013-12-19 19:39:54,262 Parameters: domain_left_edge          = [ 0.  0.  0.]
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: domain_right_edge         = [ 1.  1.  1.]
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: cosmological_simulation   = 1
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: current_redshift          = 95.1355559525
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: omega_lambda              = 0.732
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: omega_matter              = 0.268
yt : [INFO     ] 2013-12-19 19:39:54,263 Parameters: hubble_constant           = 0.704
yt : [INFO     ] 2013-12-19 19:39:54,265 Gathering a field list (this may take a moment.)
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_index to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_mass to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_position_z to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_position_x to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_position_y to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_velocity_z to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,265 Adding unknown field particle_velocity_x to list of fields
yt : [INFO     ] 2013-12-19 19:39:54,266 Adding unknown field particle_velocity_y to list of fields
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "./user_script.py", line 12, in main
    plot = SlicePlot(pf, 'x', "Density")
  File "/Users/dev/yt-stable/src/yt-hg/yt/visualization/plot_window.py", line 1715, in SlicePlot
    return AxisAlignedSlicePlot(pf, normal, fields, *args, **kwargs)
  File "/Users/dev/yt-stable/src/yt-hg/yt/visualization/plot_window.py", line 880, in __init__
    slc.get_data(fields)
  File "/Users/dev/yt-stable/src/yt-hg/yt/data_objects/data_containers.py", line 566, in get_data
    fluids, self, self._current_chunk)
  File "/Users/dev/yt-stable/src/yt-hg/yt/geometry/geometry_handler.py", line 531, in _read_fluid_fields
    fields_to_return = self.io._read_fluid_selection(
AttributeError: 'IOHandlerInMemory' object has no attribute '_read_fluid_selection'
TopGrid dt = 2.598657e-02     time = 0.86623734737675    cycle = 2    z = 95.135555952548
TopGrid dt = 2.676614e-02     time = 0.89222391343826    cycle = 3    z = 93.259702177077