| 摘要 |
PROBLEM TO BE SOLVED: To efficiently perform arithmetical operation of a plurality of programs different in arithmetic operating cycles. SOLUTION: The greatest common denominator of the arithmetic operating cycles of a plurality of programs is calculated as a unit time by a unit time calculation part 11, and the least common multiple of the arithmetic operating cycles of each of programs is calculated as a time to be spent on the completion of the arithmetic operation of all the programs by a completion time calculation unit 12, and a plurality of continuous base periods in which those programs are allocated are set, and the arithmetic operation time of each of those programs is allocated to each of those continuous base periods by an allocation unit 13 in sequence beginning with the shortest arithmetic operating cycle so that the efficient arithmetic operation of each of the programs can be performed by an arithmetic operation unit 20. Also, when it is determined that an arithmetic spare time obtained by subtracting the allocated arithmetic operation time from the arithmetic spare time of the base period by a spare time update unit 14 is negative by a determination unit 15, the rate of error information indicating that any program for which arithmetic operation is not completed within the arithmetic operating cycle output by an output unit 16 exists to the arithmetic operation time of each of the programs in each base period is displayed by a display unit 50 for confirmation. COPYRIGHT: (C)2010,JPO&INPIT |
