Ventana software support forum

I just want to let you know that I cannot see any difference in CPU utilization between MC and the single-core, and it's 10% at max using XParallel or RParallel. Defining MAX THREADS did not help. Compiling would enhance the speed but not the CPU utilization. I am on macOS Sonoma 14.5, M3 Max.

It's sensitivity only on the mac at the moment that uses multi core.

Is there any reason to not run MC all the time, even if you're not doing sensitivity runs?

And, assuming it is fine, I'm kinda wondering why there are two builds of Vensim then. Will you just be releasing the MC version as plain "Vensim" in the future? (<---leading question....).

I'm asking because it seems like one more quirk that I'll have to explain to my students. "No, for this work you need to open the other app...".

Yes, you should use it all the time. The old version is there as multi-core should be considered beta for a short while. The reason is, there are significant differences in implementation between windows and Mac.