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< > BotCompany Repo | #1030547 // parallelMap2 [backup]

JavaX fragment (include)

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sbool parallelMap2_debug;

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static <A, B> L<B> parallelMap2(ThreadPoolExecutor e defaultThreadPoolExecutor(), Collection<A> l, F1<A, B> f) {



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  if (l(l) <= 1)



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    ret map(f, l);



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  ret parallelMap2(iterator(l), l(l), f);



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}



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static <A, B> L<B> parallelMap2(ThreadPoolExecutor e defaultThreadPoolExecutor(), Iterator<A> it, final int count, final F1<A, B> f) ctex {



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  if (e.getPoolSize() == 1)



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    ret map(f, iterable(it));



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  new LPair<B, Int> out;



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  if (parallelMap2_debug)



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    print("parallelMap2: " + count + " elements, " + poolSize + " threads");



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  long time = sysNow();



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  try {



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    int i = 0;



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    for (final A o : iterable(it)) {



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      ++i;



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      final int _i = i;



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      e.execute(r { pcall {



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        B x = callF(f, o);



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        synchronized(out) {



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          out.add(pair(x, _i));



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        }



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      }});



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    }



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    /*if (parallelMap2_debug)



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      print("parallelMap2: scheduling done after " + (sysNow()-time));*/



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    e.shutdown();



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    e.awaitTermination(1, TimeUnit.DAYS);



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  } finally {



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    e.shutdown();



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  }



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  if (parallelMap2_debug)



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    print("parallelMap2: main done after " + (sysNow()-time));



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  ret firstOfPairs(sortBySecondOfPairs_inPlace(out));



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}



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static <A, B> L<B> lambdaMapLike parallelMap2(IF1<A, B> f, Cl<A> l) {



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  ret parallelMap2(l, if1ToF1(f));



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}




        
Author comment

    
Began life as a copy of #1015446

    
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Travelled to 4 computer(s): bhatertpkbcr, mqqgnosmbjvj, pyentgdyhuwx, vouqrxazstgt


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    Snippet ID:
    #1030547
  

  

    Snippet name:
    parallelMap2 [backup]
  

    

    Eternal ID of this version:
    #1030547/1
  

  

    Text MD5:
    e5ae61b394a262fa889e3953489c82b4
  

    

    Author:
    stefan
  

  

    Category:
    javax
  

  

    Type:
    JavaX fragment (include)
  

        

    Public (visible to everyone):
    Yes
  

  

    Archived (hidden from active list):
    No
  

  

    Created/modified:
      2021-01-07 02:30:09
  

  

    Source code size:
    1322 bytes / 45 lines
  

  

    Pitched / IR pitched:
    No / No
  

    

    Views / Downloads:
    115 / 143
  

      

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