[Users] CarpetIOScalar: avoiding "reductions" for scalar variables

[Erik Schnetter]

Bernard

CarpetIOScalar is for outputting reduction results; this does not
really apply to scalar variables. You can output scalar variables
without reduction using CarpetIOASCII; this is called "0D" output
there since scalars are 0-dimensional grid variables (this is also how
they are implemented internally).

out0D_vars = "..."
out0D_every = ...

You can also use 0D output to output multi-dimensional grid variables
at a certain point, e.g. the origin.

-erik

On Wed, Jan 5, 2011 at 7:28 PM, Kelly, Bernard J.
(GSFC-660.0)[UNIVERSITY OF MARYLAND BALTIMORE COUNTY]
<bernard.j.kelly at nasa.gov> wrote:
> Hi all. This seems trivial, but ...
> How do I avoid reductions (average, minimum, maximum, etc) for scalar output
> of a SCALAR variable in CarpetIOScalar?
> CactusBase/IOBasic recognises the SCALAR type of the variable, and doesn't
> bother with reduction.
> Carpet/CarpetIOScalar seems to ignore the type, and does the reductions. At
> least, it outputs several files with trivial information in them. I can
> force it to only generate one file by setting outscalar_reductions
> ="average" (for instance), but then I lose the reductions for all other
> (non-SCALAR) variables.
> Thanks,
> Bernard [working with the Chandrasekhar release of ETK]
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-- 
Erik Schnetter <schnetter at cct.lsu.edu>   http://www.cct.lsu.edu/~eschnett/