1. An information processing device comprising: a processor that selects, from among a plurality of data processing sections that subject data blocks to a predetermined process, a data processing section to which a first data block group with first identification information based on the data blocks is allocated, and divides, when a workload placed on the data processing section exceeds a first threshold, the first data block group allocated to the data processing section into a plurality of second data block groups with second identification information based on the data blocks, and selects, from among the plurality of data processing sections, data processing sections to which the plurality of second data block groups are allocated.