Numerical control system with distributed look-ahead processing of multiple numerical controllers

A numerical control system wherein a plurality of numerical controllers are connected to each other via a network, the numerical controllers controlling a machine tool that has axes to control acceleration/deceleration of the axes,

• wherein each of the plurality of numerical controllers comprises
• a processor including a plurality of look-ahead sections and a storage device,
• the processor is configured to:
• execute a first machining program that is made up of a plurality of blocks;
• look ahead at the first machining program in parallel with execution of the first machining program;
• and
• divide the storage device into a number of regions according to a number of the plurality of look-ahead sections of the processor, and to instruct a first section of the plurality of look-ahead sections of the processor to perform a look-ahead action of storing look-ahead blocks in a first region of the plurality of divided regions of the storage device and to instruct a second section of the plurality of look-ahead sections of the processor to look ahead at a second machining program of another one of the plurality of numerical controllers and to perform a look-ahead action of storing look-ahead blocks in a second region of the plurality of divided regions of the storage device.