[ET Trac] #2686: Rename CCTK_REAL -> double when float is not tested

[Zach Etienne]

#2686: Rename CCTK_REAL -> double when float is not tested

 Reporter: Zach Etienne
   Status: new
Milestone: 
  Version: 
     Type: enhancement
 Priority: minor
Component: 

Comment (by Zach Etienne):

I like the idea of testing all the commonly used thorns with single precision, but I worry it’s going to take a long time to debug and fix all the issues. \(I’d love to be proven wrong!\)

Compiler errors are just the start I fear; consider all the algorithms with tolerances tuned to relative errors ~1e-15 like conservatives-to primitives solvers, AH finders, etc. Also I bet our more complex finite-difference-based and possibly finite-volume-based codes \(BSSN & GRMHD codes\) will become unstable & unusable. But again, I’d love to be proven wrong. :slight_smile:

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2686/rename-cctk_real-double-when-float-is-not
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