[ET Trac] [Einstein Toolkit] #666: have CarpetIOScalar output grid scalar directly rather than applying reductions to them

[Einstein Toolkit]

#666: have CarpetIOScalar output grid scalar directly rather than applying
reductions to them
--------------------------+-------------------------------------------------
  Reporter:  rhaas        |       Owner:  eschnett
      Type:  enhancement  |      Status:  review  
  Priority:  minor        |   Milestone:          
 Component:  Carpet       |     Version:          
Resolution:               |    Keywords:          
--------------------------+-------------------------------------------------

Comment (by eschnett):

 This implementation of the "origin" reduction doesn't pick the value at
 the origin; rather, it picks a random value, depending on the order of the
 reduction. It also doesn't save on any MPI communication. This
 implementation makes only sense if all values are the same (which they are
 for grid scalars), and in this case, it returns the same as the "average"
 reduction... Do you really want to add a new, fake reduction?

 I'll look into modifying the standard ASCII output format.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/666#comment:4>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit