[ET Trac] [Einstein Toolkit] #1115: 'Total time for simulation' wrong for Carpet

[Einstein Toolkit]

#1115: 'Total time for simulation' wrong for Carpet
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 Reporter:  knarf   |       Owner:  eschnett           
     Type:  defect  |      Status:  new                
 Priority:  minor   |   Milestone:  ET_2012_11         
Component:  Carpet  |     Version:  development version
 Keywords:          |  
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 For some reason, the 'Total time for simulation' printed by Cactus is
 wrong when using Carpet (I say this because a similar paramter file for
 PUGH doesn't show this effect). It is roughly twice of what I would
 expect.

 Reproduce: take par/static_tov.par, reduce the final_time to something
 more managable, e.g. 2.0 and add Cactus timer output at the end
 (cactus::cctk_timer_output = "full"). Run with the unix command 'time' and
 one process and one thread.

 What I see is, e.g., 'time' reporting 2m29.615s => 150s, 'Total time for
 CCTK_EVOL' (by far largest chunk) 121.2, but 'Total time for simulation'
 296.0. I don't see any noticeable startup or shutdown delays. I would
 expect the 'total' time to be about half of what it shows to be. I
 confirmed (by using 'top' that this is indeed only using one thread).

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1115>
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