[ET Trac] [Einstein Toolkit] #1853: diagonal output in CarpetIOHDF5 disabled

[Einstein Toolkit]

#1853: diagonal output in CarpetIOHDF5 disabled
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  Reporter:  rhaas   |       Owner:  eschnett           
      Type:  defect  |      Status:  new                
  Priority:  minor   |   Milestone:  ET_2016_05         
 Component:  Carpet  |     Version:  development version
Resolution:          |    Keywords:                     
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Comment (by rhaas):

 Just piping up: as far as I remember, the simulation that failed is one
 that had a single rather large refinement level (only data from one
 reflevel is copied), as often happens during supernova simulations. The
 memory reduction in that case is quite large of course since one goes from
 3d data to 2d (or even 1d) data.

 Having said that, I have to admit that I am actually more in favor of
 reverting the change for the release version. I favor this option because
 current master fails to deliver promised functionality for all users while
 the version before the patch failed to promise functionality only for some
 users that know why this happens and how to avoid it (and the users to
 whom this originally happened are running off master anyway and not off
 the release branch). So my favored solution (given that I do not see a
 "proper" handling of diagonal output to be implemented, tested and trusted
 very quickly), would be to remove the patch the reduces memory consumption
 at the cost of disabling diagonal output for the release branch only.

 My understanding of "development happens on master" and its relationship
 with release branches is that master may always break anything but that
 release branches may only break things after a one release announcement
 that this will happen.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1853#comment:12>
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