A managing method is provided for an information processor system consisting of a plurality of information processors. In the system, each of the information processors has identification information containing a parameter for determining a master-slave relationship among the information processors and an algorithm for determining the master-slave relationship. When the information processors communicate with each other, an information processor exchanges its own identification information with the identification information of the other information processor and further makes a response of information processing on the basis of the identification information brought from the other information processor.