Can send the using cpu cores number, or may be send -1, -2 of many cores -1, -2 cores, for Rhino to run
You can set the number of threads to use with
RhinoCycles_SetThreads. The defaults is two less than number of cores, with a minimum of 1. This is an application wide setting for RhinoCycles (Raytraced), and persists between Rhino sessions.
Is it to set the cpu only, not apply on gpu? Thank you!
There aren’t threads on the GPU. There Cycles will utilize as fully as possible.