parallelize main process

arminmaniaarminmania Member Posts: 7 Contributor II
edited November 2018 in Help

can someone tell me what

"parallelize main process
Determines whether the execution of Main Process should be parallelized. Default value: false Expert parameter"

means? Should I use this setting? Is is usefull for multicore processors?



  • choose_usernamechoose_username Member Posts: 33 Maven

    as far as i know this setting (if activated) should increase the performance of ur workflow. The task (which sould be performed) will be splited i think.

    Possibly it has something to do with (mulitcore) but i am not 100% sure.


  • yogafireyogafire Member Posts: 43 Maven

    in my experience, if you only have 2 core processors, it doesn't really help. but I don't know yet how it performs on let say quad-core.
    nevertheless, you should have high amount of RAM, 4 gigs will help, I you do a large data analysis.

  • wesselwessel Member Posts: 537 Guru
    I have quad core and 16GB, and I never use it. Doesn't seem to make much difference.
  • IngoRMIngoRM Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, Community Manager, RMResearcher, Member, University Professor Posts: 1,751 RM Founder
    Hi there,

    it only makes a difference if there is something which can be performed in parallel. For example, if you have two (independent) subprocesses which would have to be performed sequentially otherwise. In such cases, RapidMiner tries to perform those subprocesses in parallel which should - if you have at least two cores and both subprocesses need about the same runtime - decrease the total runtime about the half.

  • arminmaniaarminmania Member Posts: 7 Contributor II
    Hi all,

    thank you for your fast replies!


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