A data transfer control apparatus controls transfer of data from a plurality of first nodes included in a first region in a network to a plurality of second nodes included in a second region in the network. A control unit of the data transfer control apparatus generates an n-dimensional Latin hypercube in which the number of symbols in each dimension is a value in keeping with a size of the first region. The control unit then associates, in accordance with respective positions of the first nodes in the first region, each first node with a symbol at a corresponding position in the Latin hypercube. The control unit then instructs the first nodes so that parallel data transfers by a plurality of first node sets, where first nodes associated with a same symbol in the Latin hypercube are grouped, are executed in order in first node set units.