Information processing system

• US 9,485,104 B2
• Filed: 03/09/2012
• Issued: 11/01/2016
• Est. Priority Date: 03/09/2012
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takada, Masashi, Kudo, Yasuyuki, Kato, Takeshi
• Primary Examiner(s): Jung, Min
• Application Number:
  US14/383,829
• Publication Number:
  US 20150117456A1
• Time in Patent Office: 1,698 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An information processing system according to the present invention includes a plurality of information processing apparatuses connected by a multihop network, and each of the information processing apparatuses includes a first communication unit configured to transmit and receive a first packet including information about a destination address and a second communication unit configured to communicate at a frequency higher than that of the first communication unit and transmit and receive a second packet including a payload, and in each of the information processing apparatuses, when the first communication unit receives the first packet, the second communication unit is woken up, so that efficient data transfer can be achieved while the power consumption is saved.

Claims

1. An information processing system including a plurality of information processing apparatuses connected by a multihop network,

each of the information processing apparatuses comprising:

a first communication unit configured to transmit and receive a first packet including information about a destination address; and

a second communication unit configured to communicate at a frequency higher than that of the first communication unit, and transmit and receive a second packet including a payload to the destination address,

wherein in each of the information processing apparatuses, when the first communication unit receives the first packet and the first packet is addressed to the information processing apparatus, the second communication unit is woken up.

2. The information processing system according to claim 1, wherein each of the information processing apparatuses includes a memory,

the memory stores information about a transfer destination of the first packet, and

the second packet is transferred on the basis of information about the transfer destination.

3. The information processing system according to claim 2, wherein the memory of each information processing apparatus further stores a routing table and information about an address of each of the information processing apparatuses, and

each of the information processing apparatuses determines whether the destination address matches the address of each of the information processing apparatuses, and when a determination result indicates non-matching, the first packet is transferred on the basis of the routing table.

4. The information processing system according to claim 2, wherein the second communication unit has a communication port for each information processing apparatus of connection destination among the plurality of information processing apparatuses, and wakes up, hibernates, or stops each communication port in accordance with the information about the transfer destination.

5. The information processing system according to claim 4, each communication port of the second communication unit is hibernated or stopped after a predetermined period of time passes since wake-up where the first communication unit receives the first packet.

6. The information processing system according to claim 1 comprising:

a first channel configured to transmit the first packet; and

a second channel configured to transmit the second packet.

7. The information processing system according to claim 1, wherein

the multihop network is a three-dimensional torus network.

8. The information processing system according to claim 1, wherein

the second communication unit communicates using high speed serial transmission.

9. The information processing system according to claim 1, wherein

the first communication unit communicates in MHz band, and

the second communication unit communicates in GHz band.