[ET Trac] [Einstein Toolkit] #1969: Carpet::processor_topology = "recursive" does not work with one process

[Einstein Toolkit]

#1969: Carpet::processor_topology = "recursive" does not work with one process
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 Reporter:  sbrandt  |       Owner:                     
     Type:  defect   |      Status:  new                
 Priority:  minor    |   Milestone:                     
Component:  Other    |     Version:  development version
 Keywords:           |  
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 If you set Carpet::processor_topology = "recursive" and use one mpi
 process, you get the following error:
 {{{
 terminate called after throwing an instance of 'std::out_of_range'
   what():  vector::_M_range_check: __n (which is 0) >= this->size() (which
 is 0)
 Rank 0 with PID 19719 received signal 6
 Writing backtrace to ./backtrace.0.txt
 Aborted (core dumped)
 }}}

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1969>
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