Abstract: Computing processes are allocated to a plurality of computing nodes while taking a precedence constraint among a plurality of computing processes into consideration even when a deadline is longer than a period of the computing process. In a distributed allocation device, a creation unit determines an order to execute the computing processes based on the precedence constraint, and creates a constraint condition equation satisfying the deadline based on an execution time of the computing processes and a data communication volume among the computing processes. If the deadline is longer than the entire period, the creation unit creates the constraint condition equation which does not allocate an other computing process during execution of an excess computing process, in the subsequent entire period, to the computing node to which the excess computing process is to be allocated, which is executed past the entire period.

Abstract: Computing processes are allocated to a plurality of computing nodes while taking a precedence constraint among a plurality of computing processes into consideration even when a deadline is longer than a period of the computing process. In a distributed allocation device, a creation unit determines an order to execute the computing processes based on the precedence constraint, and creates a constraint condition equation satisfying the deadline based on an execution time of the computing processes and a data communication volume among the computing processes. If the deadline is longer than the entire period, the creation unit creates the constraint condition equation which does not allocate an other computing process during execution of an excess computing process, in the subsequent entire period, to the operation node to which the excess computing process is to be allocated, which is executed past the entire period.

Abstract: The present invention includes: a rolled filter stretched between first and second winding shafts and, unused part of the filter being wound around the second winding shaft; a brush provided between the first and the second winding shafts so as to come into contact with a surface of the filter; a feeding mechanism for driving the first and the second winding shafts to take up or rewind the filter; and a feeding control unit for controlling the feeding mechanism. When activating a renewing operation for feeding unused part of the filter from the second winding shaft, the feeding control unit controls the feeding mechanism such that once the filter is taken up by the first winding shaft by an take-up amount La, the filter is rewound by the second winding shaft by a rewind amount Lb, and La and Lb satisfy a relationship La?Lb.

Abstract: The present invention includes: a rolled filter stretched between first and second winding shafts and, unused part of the filter being wound around the second winding shaft; a brush provided between the first and the second winding shafts so as to come into contact with a surface of the filter; a feeding mechanism for driving the first and the second winding shafts to take up or rewind the filter; and a feeding control unit for controlling the feeding mechanism. When activating a renewing operation for feeding unused part of the filter from the second winding shaft, the feeding control unit controls the feeding mechanism such that once the filter is taken up by the first winding shaft by an take-up amount La, the filter is rewound by the second winding shaft by a rewind amount Lb, and La and Lb satisfy a relationship La?Lb.