On 18 Oct 2011, at 15:51, Einstein Toolkit wrote:

#66: IOHDF5::out3D_ghosts and friends doesn't work and corrupts 2D data slices
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 Reporter:  bcmsma@…              |       Owner:  eschnett
     Type:  defect                |      Status:  new     
 Priority:  minor                 |   Milestone:          
Component:  Carpet                |     Version:          
Resolution:                        |    Keywords:          
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Comment (by rhaas):

The output_XXX ones work for out3d_vars (the "sliced" 3d output), they do
not work for the legacy out_vars 3d output as you correclty point out. The
former should produce identical output for grid functions (and maybe
scalar and arrays though that is much less well tested). Its code cannot
be used for checkpointing though which is why the old legacy code is still
in (and I don't fully trust the new 3D code yet since it has not been
active for very long).

I wasn't really aware of the new-style 3D output method.  Does this method allow for parallel output (i.e. one file per process)?  If not, then I worry that it might be quite slow.