[ET Trac] #2586: new cGH field cctk_patch

[Roland Haas]

#2586: new cGH field cctk_patch

 Reporter: Roland Haas
   Status: open
Milestone: 
  Version: development version
     Type: enhancement
 Priority: minor
Component: Cactus

Comment (by Roland Haas):

Note that to find out the total number of patches \(maps\) one still has to call the aliased functon `GetMaps`. Not sure if there is a legit use for that information though \(there is also not official way to find out the total number of components \[not MPI ranks\]\). Also note that the assumption `cctk_patch == 0` → Cartesian patch is most likely not true for eg the 6 patch cubed sphere system \(which has no Cartesian block in the center\). The function to query this would be `MultiPatch_MapIsCartesian` in the `Coordinates` thorn \(which only requires knowledge of `cctk_patch` and of course calls it `map`\).

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2586/new-cgh-field-cctk_patch
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