[ET Trac] [Einstein Toolkit] #1282: Enable HDF5 compression by default in Carpet

[Einstein Toolkit]

#1282: Enable HDF5 compression by default in Carpet
--------------------------+-------------------------------------------------
  Reporter:  hinder       |       Owner:  eschnett
      Type:  enhancement  |      Status:  new     
  Priority:  major        |   Milestone:          
 Component:  Carpet       |     Version:          
Resolution:               |    Keywords:          
--------------------------+-------------------------------------------------

Comment (by rhaas):

 I had also used compression (with level 1 I believe) in the past for hydro
 runs with a good amount of 2d output. I found that (a) my run was slowed
 down and (b) that for the smallish datasets that are written to 2d hdf5
 files, the file size actually increased.

 Ideally before we make this change we should try and have at least one
 round of direct tests to compare speeds. Eg. runs qc0 and a nsns inspiral
 (which I'll happyly run) for a bit with and without compression to see
 what happens. Obviously since this is a a parameter, one can always change
 it back in one's runs but I'd rather avoid adding a parameter that is set
 to non-default values by most users (though if it is faster for vacuum and
 slower for hydro runs I would not be sure what to do).

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1282#comment:3>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit