[ET Trac] [Einstein Toolkit] #1772: Simfactory: potentially serious problem with CACHE directory in the simulations directory

[Einstein Toolkit]

#1772: Simfactory: potentially serious problem with CACHE directory in the
simulations directory
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  Reporter:  bmundim     |       Owner:                     
      Type:  defect      |      Status:  new                
  Priority:  critical    |   Milestone:  ET_2015_05         
 Component:  SimFactory  |     Version:  development version
Resolution:              |    Keywords:  CACHE              
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Comment (by hinder):

 Another problem is that during the transition from simfactory 1 to
 simfactory 2, a feature was lost.  SimFactory 1 used to additionally make
 a hardlink of the executable in each restart directory.  This made it
 possible to replace the executable at the top-level of the simulation
 while it was running, so that the next restart would get the new
 executable (you have to be careful to delete the original hardlink first,
 because cp by default will copy the new data into the old file, which
 affects all hard links).  If you do that now, the simulation will crash
 with a "bus error" (at least, that's what happened to me), because each
 restart executes the top-level executable.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1772#comment:2>
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