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Old 15th April 2021, 23:55   #33  |  Link
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Join Date: Mar 2018
Posts: 302
Zopti v1.1.0 released

A new major release is here! Zopti now supports executing multiple scripts simultaneously which can lead to very nice performance improvement. This can be very useful when the script itself is not able to utilize all of your cores.

Here's the full release info:
  • added support for multithreaded execution of scripts with argument -threads
    -default value of -threads is 1 meaning one script is executed at a time just like before
    -all optimization algorithms (nsga-ii, spea2, mutation, exhaustive) support the the -threads option
    -due to the nature of the heuristic algorithms (nsga-ii, spea2, mutation) there can be at most P threads running the scripts at the same time, where P is the population size
    -exhaustive algorithm has no thread limits
    -validate mode also supports -threads. there the maximum number of threads is the number of validated results (size of the pareto front)
    -note: using more than one thread will make time measurements less accurate but will not change the quality measurements
  • avsr version update (v0.2.2)
  • added jMetal.log.ini to disable multithreading related JMetal logging
  • updated Zoptilib to version 1.0.9m
  • bugfix: evaluate could not parse log files when Zopti was used

Download link is at the first post. I will shortly post some data on the multithreading performance.
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