PROBLEM TO BE SOLVED: To provide a technique for determining an efficient disposition of data in an on-memory type data store in a distributed parallel processing by plural nodes.;SOLUTION: A distributed data storing management device includes: a utilization information integration section 21 that integrates a piece of information on utilization of data by the nodes in a processing requested to execute distributed parallel processing using plural nodes and a piece of information on utilization of data by the nodes in other processing under execution; a data utilization rank determination section 22 that determines data utilization rank on one or more data in one or more pieces of processing parallelly-executed on the basis of the utilization integrated information; a disposition target node priority rank determination section 23 that determines the disposition target node priority rank for the respective data in one or more pieces of processing parallelly executed on the basis of the utilization integrated information; and a data disposition section 24 that selects the data to be read in the on-memory type data store constituted of memories of the nodes on the basis of the data utilization rank and the disposition target node priority rank to determine the number of copies and the disposition target nodes.;COPYRIGHT: (C)2014,JPO&INPIT
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