Information processing apparatus, parallel computer system, and control method of parallel computer system

摘要

An information processing apparatus connected to another information apparatus in a parallel computer system via a plurality of routes, includes: an arithmetic processing device to issue an instruction for collection of congestion information and for communication; a route information holding unit to hold route information for performing communication; a transmission unit to transmit a congestion information collection packet to any of the plurality of routes; a reception unit to receive a congestion information collection response packet corresponding to the congestion information collection packet from any of the plurality of routes; and a control unit to cause the transmission unit to transmit a congestion information collection packet, to select route information from the route information holding unit based on congestion information included in the congestion information collection response packet, and to cause the transmission unit to perform communication instructed by the arithmetic processing device based on the selected route information.