Patent ID: 7617008

Claim:
A managing method for an information processor system including a plurality of information processors, comprising: providing each of the plurality of information processors with identification information and an algorithm for determining a master-slave relationship among the plurality of information processors; controlling two of the plurality of information processors to exchange their identification information when the two information processors communicate with each other; determining a first master-slave relationship between the two information processors based on the algorithm using the exchanged identification information; grouping the two information processors into a group; determining a second master-slave relationship between the master information processor and a second information processor that does not belong to the group, based on the algorithm and their identification information, respectively, when the master information processor of the group communicates with the second information processor, wherein the identification information includes a first parameter for identifying each of the plurality of information processors when the plurality of information processors communicate with each other, a second parameter representing a rank of each of the plurality of information processors, an information representing the presence/absence of the master information processor, an identification information of the master information processor, an information representing the presence/absence of a slave information processor, and an identification information of the slave information processor.