20 minutes ago, JParis said:

It depends which toolpaths are being crunched....the older legacy paths are single core as you note....all of the newer highspeed paths as well as many of the 5 axis toolpaths do use multi-core processing

ok, so that throws that theory out the window!!

1 hour ago, pro grammer said:

During calculation Task manager shows that ONLY ONE CORE of CPU IS WORKING at HIGHER INTENSITY while average load on the system is only 5%. Why is that and how to activate other seven(+8 virtual) CORES of CPU?

upon further research....im thinking that  mastercam software is not written to use more than one core. it appears that it is using 100% of one core, spread out over all....so you would have 100/16  (8 +8virtual) would be 6.25% which is close to the 5 and 8 we are seeing.....just a theory

I am having the same issues....I get max speed and 25% max utilization if i'm lucky. this shot was taken during a high speed scallop regen in 2020.  why does the cpu not max out while crunching numbers?  i would think it would use all it has until it reaches completion. This may be a problem since windows 10, i don't remember an issue with windows 7 but i may not have been looking as hard as i am now.

 Precision 5820 Tower X-Series
 Processor    Intel(R) Core(TM) i7-9800X CPU @ 3.80GHz, 3792 Mhz, 8 Core(s), 16 Logical Processor(s)

 Windows 10 / 64GB RAM

 NVIDIA Quadro P2200

 SSD 512GB