fisheye error

script:

from yt.mods import *

pf = load('DD0018/output_0018')

N = 512 # Pixels (1024^2)

v, c = pf.h.find_max("Density")
radius = 150/pf['kpc']


#c = (pf.domain_right_edge + pf.domain_left_edge)/2. # Center
#radius = (pf.domain_right_edge - pf.domain_left_edge)/2.

fov = 180.0

field='Density'
mi,ma = pf.h.all_data().quantities['Extrema']('Density')[0]
mi,ma = na.log10(mi), na.log10(ma)

# You may want to comment out the above lines and manually set the min and max
# of the log of the Density field. For example:
# mi,ma = -30.5,-26.5

# Another good place to center the camera is close to the maximum density.
# v,c = pf.h.find_max('Density')
# c -= 0.1*radius


# Construct transfer function
tf = ColorTransferFunction((mi-1, ma+1),nbins=1024)

# Sample transfer function with Nc gaussians.  Use col_bounds keyword to limit
# the color range to the min and max values, rather than the transfer function
# bounds.
Nc = 5
tf.add_layers(Nc,w=0.005, col_bounds = (mi,ma), alpha=na.logspace(-2,0,Nc),
        colormap='RdBu_r')

# Create the camera object. Use the keyword: no_ghost=True if a lot of time is
# spent creating vertex-centered data. In this case I'm running with 8
# processors, and am splitting the image plane into 4 pieces and using 2
# processors on each piece.
cam = MosaicFisheyeCamera(c, radius, fov, N,
        transfer_function = tf,
        sub_samples = 5,
        pf=pf,
        nimx=2,nimy=2,procs_per_wg=4)

# Take a snapshot
im = cam.snapshot()

# Save the image
cam.save_image('fisheye_mosaic.png')


error:

P001 yt : [INFO     ] 2012-01-24 12:29:47,562 Starting 'Ray casting'
P013 yt : [INFO     ] 2012-01-24 12:29:47,569 Rendering fisheye of 512^2
P013 yt : [INFO     ] 2012-01-24 12:29:47,570 Starting 'Ray casting'
mpispawn.c:303 Unexpected exit status
Traceback (most recent call last):
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
  File "fisheye_example.py", line 50, in <module>
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1095, in snapshot
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1095, in snapshot
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1095, in snapshot
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1095, in snapshot
    self.volume.initialize_source()
    brick.cast_plane(tfp, vector_plane)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/utilities/amr_kdtree/amr_kdtree.py", line 668, in initialize_source
KeyboardInterrupt
    self.volume.initialize_source()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/utilities/amr_kdtree/amr_kdtree.py", line 668, in initialize_source
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    self.volume.initialize_source()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/utilities/amr_kdtree/amr_kdtree.py", line 668, in initialize_source
    self.volume.initialize_source()
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/utilities/amr_kdtree/amr_kdtree.py", line 668, in initialize_source
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
Traceback (most recent call last):
  File "fisheye_example.py", line 50, in <module>
    im = cam.snapshot()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/visualization/volume_rendering/camera.py", line 1102, in snapshot
    brick.cast_plane(tfp, vector_plane)
KeyboardInterrupt
    vcd = current_node.grid.get_vertex_centered_data(field,smoothed=True,no_ghost=self.no_ghost).astype('float64')
    vcd = current_node.grid.get_vertex_centered_data(field,smoothed=True,no_ghost=self.no_ghost).astype('float64')
        vcd = current_node.grid.get_vertex_centered_data(field,smoothed=True,no_ghost=self.no_ghost).astype('float64')
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 491, in get_vertex_centered_data
vcd = current_node.grid.get_vertex_centered_data(field,smoothed=True,no_ghost=self.no_ghost).astype('float64')
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 491, in get_vertex_centered_data
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 491, in get_vertex_centered_data
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 491, in get_vertex_centered_data
    cg = self.retrieve_ghost_zones(1, field, smoothed=smoothed)
    cg = self.retrieve_ghost_zones(1, field, smoothed=smoothed)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 458, in retrieve_ghost_zones
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 458, in retrieve_ghost_zones
    cg = self.retrieve_ghost_zones(1, field, smoothed=smoothed)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 458, in retrieve_ghost_zones
    cg = self.retrieve_ghost_zones(1, field, smoothed=smoothed)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 458, in retrieve_ghost_zones
    level, new_left_edge, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3490, in __init__
    level, new_left_edge, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3490, in __init__
    level, new_left_edge, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3490, in __init__
    level, new_left_edge, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3490, in __init__
    AMRCoveringGridBase.__init__(self, *args, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3346, in __init__
        AMRCoveringGridBase.__init__(self, *args, **kwargs)
AMRCoveringGridBase.__init__(self, *args, **kwargs)
    AMRCoveringGridBase.__init__(self, *args, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3346, in __init__
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3346, in __init__
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3346, in __init__
    self._refresh_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3365, in _refresh_data
    self._refresh_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3365, in _refresh_data
    self._refresh_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3365, in _refresh_data
    self._refresh_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3365, in _refresh_data
    AMR3DData._refresh_data(self)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 309, in _refresh_data
    AMR3DData._refresh_data(self)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 309, in _refresh_data
    self.get_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3537, in get_data
    AMR3DData._refresh_data(self)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 309, in _refresh_data
    self.get_data()
    AMR3DData._refresh_data(self)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3562, in get_data
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 309, in _refresh_data
    self.get_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3537, in get_data
    self._get_list_of_grids()
    self.get_data()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3537, in get_data
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3511, in _get_list_of_grids
    self._get_data_from_grid(grid, fields_to_get)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 102, in save_state
    tr = func(self, grid, field, *args, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3618, in _get_data_from_grid
    self._get_list_of_grids()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3511, in _get_list_of_grids
    self._get_list_of_grids()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3515, in _get_list_of_grids
    self.left_edge - buf, self.ActiveDimensions + nz)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3338, in __init__
    g_fields = [grid[field].astype("float64") for field in fields]
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 157, in __getitem__
    self.get_data(key)
    self.left_edge - buf, self.ActiveDimensions + nz)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py", line 190, in get_data
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3338, in __init__
    temp = self.hierarchy.io.pop(self, field)
    count -= cg._get_data_from_grid(g, [])
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 87, in save_state
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/utilities/io_handler.py", line 61, in pop
    self.dds = self.pf.h.select_grids(self.level)[0].dds.copy()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/hierarchy.py", line 103, in select_grids
    tr = func(self, grid, field, *args, **kwargs)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 3439, in _get_data_from_grid
    self.dds = self.pf.h.select_grids(self.level)[0].dds.copy()
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/data_objects/hierarchy.py", line 103, in select_grids
    grid.child_mask, self.domain_width, ll, 0)
KeyboardInterrupt
    return self.grids[self.grid_levels.flat == level]
    return self.grids[self.grid_levels.flat == level]
KeyboardInterrupt
KeyboardInterrupt
    return self._read_data_set(grid, field)
  File "/share/home/01112/tg803911/yt_17May2011/yt-x86_64/src/yt-hg/yt/frontends/enzo/io.py", line 185, in _read_data_set
    "/Grid%08i/%s" % (grid.id, field)))
KeyboardInterrupt

Child exited abnormally!
Killing remote processes...DONE