PURPOSE: To provide a logical simulation device which simulates a logic circuit only, distributes surely the data on the inter-processor connector to each of processors forming the simulation device when the data on the circuit module serving as a simulation model of the logic circuit are distributed to these processors, and also generates the simulation model at a high speed.

CONSTITUTION: A logical simulation device includes plural processors 1 to simulate a logic circuit. Each processor 1 is provided with an assignment inhibiting area 3 included in a storage means 2 in a size proportional to the number of input/output terminals of a circuit module stored in the means 2 for assignment of the data on the inter-processor connector. Then, the element data on the circuit module are assigned to the areas except the area 3.