Circuit design support method, circuit design support apparatus, and computer product

A circuit design support apparatus comprising

• a processor that is configured to:
• calculate a first performance value of a circuit under design before a layout process, the first performance value being calculated by using a first parameter group that represents properties of elements of the circuit under design before the layout process, to refer to a storage unit that stores values of parameters of a second parameter group that represent properties of the elements of the circuit under design after the layout process, and input into a first function model that represents a performance value of the circuit under design before the layout process, the values of the parameters that are among the parameters of the second parameter group and correspond to parameters of a first parameter group;
• acquire a second performance value of the circuit under design after the layout process, the second performance value being obtained by simulating operation of the circuit under design after the layout process, using the values of the parameters of the second parameter group stored in the storage unit;
• and
• generate a second function model that represents a difference in the performance value of the circuit under design before and after the layout process, the second function model being generated based on the calculated first performance value, the acquired second performance value, and the values of the parameters of the second parameter group stored in the storage unit and by using the second parameter group.

A non-transitory, computer-readable recording medium that stores a circuit design support program that causes a computer to execute a process comprising:

• calculating a first performance value of a circuit under design before a layout process, the first performance value being calculated by using a first parameter group that represents properties of elements of the circuit under design before the layout process, to refer to a storage unit that stores values of parameters of a second parameter group that represent properties of the elements of the circuit under design after the layout process, and inputting into a first function model that represents a performance value of the circuit under design before the layout process, the values of the parameters that are among the parameters of the second parameter group and correspond to parameters of a first parameter group;
• acquiring a second performance value of the circuit under design after the layout process, the second performance value being obtained by simulating operation of the circuit under design after the layout process, using the values of the parameters of the second parameter group stored in the storage unit;
• and
• generating a second function model that represents a difference in the performance value of the circuit under design before and after the layout process, the second function model being generated based on the calculated first performance value, the acquired second performance value, and the values of the parameters of the second parameter group stored in the storage unit and by using the second parameter group.