[ET Trac] [Einstein Toolkit] #1841: GRHydro tracers broken

[Einstein Toolkit]

#1841: GRHydro tracers broken
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 Reporter:  I.Hawke@…              |       Owner:                     
     Type:  defect                 |      Status:  new                
 Priority:  unset                  |   Milestone:                     
Component:  EinsteinToolkit thorn  |     Version:  development version
 Keywords:  GRHydro                |  
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 The GRHydro::GRHydro_tracers group is not registered as a constrained
 variable with MoL in GRHydro. This means that, in runs with insufficient
 conserved variables and other memory settings, the first step through the
 loop sets NaNs for the tracers: they then fail to update (or, at least,
 not correctly).

 To fix this, add

       register_constrained("GRHydro::GRHydro_tracers");

 on or around line 143 of GRHydro_RegisterVars.cc.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1841>
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