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  1. OptaPlanner
  2. PLANNER-163

Benchmarker runs forever (because of infinite loop in drools or optaplanner)

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      <solverBenchmark>
      <name>Move Tabu 1 of 10</name>
      <solver>
      <localSearch>
      <termination>
      <terminationCompositionStyle>OR</terminationCompositionStyle>
      <scoreAttained>0hard/0soft</scoreAttained>
      <maximumSecondsSpend>120</maximumSecondsSpend>
      <maximumUnimprovedStepCount>500</maximumUnimprovedStepCount>
      </termination>
      <unionMoveSelector>
      <changeMoveSelector/>
      <swapMoveSelector/>
      </unionMoveSelector>
      <acceptor>
      <moveTabuSize>1</moveTabuSize>
      </acceptor>
      <forager>
      <acceptedCountLimit>10</acceptedCountLimit>
      </forager>
      </localSearch>
      </solver>
      </solverBenchmark>

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      <solverBenchmark> <name>Move Tabu 1 of 10</name> <solver> <localSearch> <termination> <terminationCompositionStyle>OR</terminationCompositionStyle> <scoreAttained>0hard/0soft</scoreAttained> <maximumSecondsSpend>120</maximumSecondsSpend> <maximumUnimprovedStepCount>500</maximumUnimprovedStepCount> </termination> <unionMoveSelector> <changeMoveSelector/> <swapMoveSelector/> </unionMoveSelector> <acceptor> <moveTabuSize>1</moveTabuSize> </acceptor> <forager> <acceptedCountLimit>10</acceptedCountLimit> </forager> </localSearch> </solver> </solverBenchmark>

      Tracing the log the console stops writing additional moves after some seconds.
      As you can see in the "Steps to reproduce" section I tried to use a maximum of 120 seconds to wait for such an endless loop or score trap.
      Unfortunately the benchmarker never stops. Meanwhile one of my CPU-Cores is still under heavy load until I terminate the benchmark run.

        1. heapdump-1369767295294.zip
          3.34 MB
        2. memory profiling.png
          memory profiling.png
          8 kB
        3. threaddump-1369767885145.tdump
          5 kB
        4. threaddump-1369767994963.tdump
          6 kB
        5. threaddump-1369768012060.tdump
          5 kB
        6. tournament_scheduling_system_gui.zip
          3.77 MB

            gdesmet@redhat.com Geoffrey De Smet (Inactive)
            arno_hernach Arno Hernach (Inactive)
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              Created:
              Updated:
              Resolved: