A calculation capability of grid computing using a calculation resource mounted on a moving body is promptly provided to a client. A management server configures a candidate of a moving body group forming a grid for executing grid computing as a grid candidate with reference to resource information and moving body information stored in a memory. The calculation resource information including a temporal change in a calculation capability is estimated for the configured grid candidate with reference to the resource information and the moving body information, and the estimated calculation resource information is stored in the memory together with data specifying a moving body configuring the grid candidate.