[ET Trac] [Einstein Toolkit] #163: Assertion `tl>=0 and tl<timelevels' failed error

[Einstein Toolkit]

#163: Assertion `tl>=0 and tl<timelevels' failed error
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  Reporter:  azebrowski@…            |       Owner:  knarf   
      Type:  defect                  |      Status:  reopened
  Priority:  major                   |   Milestone:          
 Component:  Carpet                  |     Version:          
Resolution:                          |    Keywords:          
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Comment (by rhaas):

 I recently played with a multistep time integration scheme (just the plain
 Adams-Bashforth-Moulton which one can copy from numerical recipes) for a
 postprocessing code that needs some time evolution but cannot (since all
 data comes from saved timeslices) use a RK scheme.

 In that case, I would naturally want to use Carpets previous timelevels
 for the evolution scheme, but might require more levels than I would need
 for a the desired time interpolation order. The problem here stems from
 the fact that Carpet assumes (correctly right now when using MoL) that
 timelevels are only for its own use during prolongation but the Adams-
 Bashforth-Moulton scheme actually needs past timelevels for purposes of
 its own.

 I believe Carpet should ideally be more forgiving if there are more than
 enough timeleves to satisfy its needs for prolongation.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/163#comment:8>
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