diff options
| author | schnetter <> | 2001-12-11 12:08:00 +0000 |
|---|---|---|
| committer | schnetter <> | 2001-12-11 12:08:00 +0000 |
| commit | 1c5e61bd1d33494d2a5197b44ad47a8806e0c0ae (patch) | |
| tree | 10414fdf159bcc805650438b639d8b04061121f9 /Carpet/CarpetReduce/README | |
| parent | 04d0baa63fd5c7002aab2c22ba6c30a0b8890800 (diff) | |
Added initial stab at reduction operators for Carpet.
darcs-hash:20011211120856-07bb3-0f661df0de1c74d8064bf095db9f5abd93efe9a4.gz
Diffstat (limited to 'Carpet/CarpetReduce/README')
| -rw-r--r-- | Carpet/CarpetReduce/README | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/Carpet/CarpetReduce/README b/Carpet/CarpetReduce/README index 8692a2930..e5c64331a 100644 --- a/Carpet/CarpetReduce/README +++ b/Carpet/CarpetReduce/README @@ -1,29 +1,7 @@ Cactus Code Thorn CarpetReduce Authors : Erik Schnetter <schnetter@uni-tuebingen.de> -CVS info : $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetReduce/README,v 1.3 2004/06/14 07:01:21 schnetter Exp $ +CVS info : $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetReduce/README,v 1.1 2001/12/11 13:08:56 schnetter Exp $ -------------------------------------------------------------------------- Purpose of the thorn: -This thorn provides parallel reduction operators for Carpet. - - - -This thorn now uses a weight function. This makes it possible to -perform physically meaningful spatial reduction operations. The -weight is 1 for all "normal" grid points. - -The weight is set to 0 on symmetry and possible the outer boundary, -and it might be set to 1/2 on the edge of the boundary. Setting this -depends on the coordinate thorn, and currently works only when the -coordinates are defined via CoordBase. - -The weight is also reduced or set to 0 on coarser grids that are -overlaid by finer grid. - -The weight should also be reduced or set to 0 near and in excised -regions. This should happen in conjunction with an excision boundary -thorn. - -This weigth function should probably be extracted into its own thorn -MaskBase, so that many thorns can easily operate on it. |