Enables you to set the number of processors to use for rendering. The number of processors defaults to and is limited by the actual number of available physical hardware central processor units (CPUs). Setting this value to a lower number (for example, "1") limits the number of software threads that will be created for normal (not ray traced) rendering. The minimum value is 1.
Enter the number of processors to be used and click OK. Your setting is saved and available the next time the work session is opened.
Setting the number of processors to 1 before or after opening a project may improve software stability on some systems, but can reduce rendering performance.