Operating method for a numerical controller, - wherein the numerical controller executes a useful program while being monitored by a system program, - wherein, in the course of the execution of the useful program, the numerical controller determines, by means of at least one processor having at least one first clock rate, target values for position-controlled axes of a machine controlled by the numerical controller and actuates the position-controlled axes in accordance with the respectively determined target values, - wherein, with regard to resources of the numerical controller, it is in each case recorded in the numerical controller whether, and optionally within which scope, said resources are enabled or whether said resources are disabled, characterised in that the numerical controller determines the target values for the position-controlled axes using only the enabled resources, and that enabling or disabling the resources establishes one or a plurality of the following options -- how many of a plurality of processor cores are enabled for use, -- how many of a plurality of processor threads are enabled for use, -- to what extent a processor cache and/or a main memory assigned to the processor are enabled for use, -- which hardware components of the numerical controller are enabled for use, -- to what extent the use of external computing power is permitted. - wherein the numerical controller executes a useful program while being monitored by a system program, - wherein, in the course of the execution of the useful program, the numerical controller determines, by means of at least one processor having at least one first clock rate, target values for position-controlled axes of a machine controlled by the numerical controller and actuates the position-controlled axes in accordance with the respectively determined target values, - wherein, with regard to resources of the numerical controller, it is in each case recorded in the numerical controller whether, and optionally within which scope, said resources are enabled or whether said resources are disabled, characterised in that the numerical controller determines the target values for the position-controlled axes using only the enabled resources, and that enabling or disabling the resources establishes one or a plurality of the following options -- how many of a plurality of processor cores are enabled for use, -- how many of a plurality of processor threads are enabled for use, -- to what extent a processor cache and/or a main memory assigned to the processor are enabled for use, -- which hardware components of the numerical controller are enabled for use, -- to what extent the use of external computing power is permitted. characterised in that the numerical controller determines the target values for the position-controlled axes using only the enabled resources, and that enabling or disabling the resources establishes one or a plurality of the following options -- how many of a plurality of processor cores are enabled for use, -- how many of a plurality of processor threads are enabled for use, -- to what extent a processor cache and/or a main memory assigned to the processor are enabled for use, -- which hardware components of the numerical controller are enabled for use, -- to what extent the use of external computing power is permitted. -- how many of a plurality of processor cores are enabled for use, -- how many of a plurality of processor threads are enabled for use, -- to what extent a processor cache and/or a main memory assigned to the processor are enabled for use, -- which hardware components of the numerical controller are enabled for use, -- to what extent the use of external computing power is permitted.