#12415: Update doctesting framework
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       Reporter:  robertwb                                                      
                                                                                
                        |         Owner:  mvngu         
           Type:  enhancement                                                   
                                                                                
                        |        Status:  needs_work    
       Priority:  major                                                         
                                                                                
                        |     Milestone:  sage-5.7      
      Component:  doctest                                                       
                                                                                
                        |    Resolution:                
       Keywords:                                                                
                                                                                
                        |   Work issues:                
Report Upstream:  N/A                                                           
                                                                                
                        |     Reviewers:  Jeroen Demeyer
        Authors:  David Roe, Robert Bradshaw                                    
                                                                                
                        |     Merged in:                
   Dependencies:  #13147,#13146, #13145, #12723, #12392, #12393, #12395, 
#12396, #12397, #12381, #12382, #12383, #12384, #11871, #13195, #13121, #13748, 
#13899, #12719, #5155, #14070  |      Stopgaps:                
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Comment (by jdemeyer):

 Answering my own question, it seems that N `DocTestWorkers` are started
 with `make -j N`.

 But I don't understand the design choice of having '''two levels''' of
 multiprocessing: one from the master process to the `DocTestWorker` and
 one from the `DocTestWorker` to the `DocTestTask`.

 I surely need to think more about this, but I propose a redesign with only
 one level of multiprocessing, completely bypassing the `DocTestWorker`
 class. This would give the benefits of "serial" processing while still
 allowing parallel doctests.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12415#comment:167>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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