Reply To: About setting the number of cores (threads) in chemkin

[jcooper]

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.