Information processing apparatus, information processing system and information processing method for processing tasks in parallel

An information processing system comprising a plurality of processor units connected via a network, wherein each processor unit comprises:

• a plurality of task processing units operative to process tasks, which are originated from a program, in parallel;
• a management processing unit operative to manage task processing performed by the plurality of task processing units and to execute processing requested from the task processing unit, the processing including the transmission of data to another processor unit;
• and
• a communication processing unit operative to transmit data to another processor unit in correspondence to the request from the task processing unit, wherein,
• the task processing unit comprises a selector which selects a request destination for the data transmission, from the management processing unit and the communication processing unit, depending on required transmission speed.

An information processing method comprising;

• issuing, to a management processing unit, a request for establishing communication with another apparatus, the request occurring when processing a task in a task processing unit,
• acquiring information on networks connecting to an apparatus which is the communication target of the request by the management processing unit,
• selecting one network to establish communication by the task processing unit, based on the information on networks, and
• establishing communication by a third processing unit, other than the management processing unit, the third processing unit being able to establish communication via the one selected network.