About setting the number of cores (threads) in chemkin

- January 27, 2022 at 9:02 am
  
  yukiyuki
  Subscriber
  
  Hi there.
  I would like to set the number of cores in Chemkin.
  Up to Chemkin2021R1, I was able to do this by changing the value of [Preference>Run/Output>Job Submission Preferences>Number of Threads].
  However, since Chemkin2021R2, the "Number of Threads" field is missing.
  What should I do?
- January 28, 2022 at 3:58 pm
  
  RK
  Ansys Employee
  
  Hello,
  You can go to Edit --> Preferences --> Run/Output
- February 2, 2022 at 7:09 pm
  
  Judy Cooper
  Ansys Employee
  
  There is no need to make any adjustments. For 2021 R2, this setting was removed. Chemkin is not parallel like CFD, and it was found that setting the threads >1 resulted in little speedup.
  The main speedup advantage Chemkin has is for parametric runs, where Chemkin can perform the calculations for all parameter combinations simultaneously.
- February 8, 2022 at 7:45 am
  
  yukiyuki
  Subscriber
  
  Thank you so much !

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