Fujitsu Corporation

Tadao Amada

Kazushige Kobayakawa

Masayuki Ikeda

Haruhiko Ueno

Shigeru Nagasawa

Naoki Shinjo

Kenichi Ishizaka

Masami Dewa

Teruo Utsumi

Hiroshi Ishikawa

Satoshi Shinohara

Kyoichi Takada

Kenji Korekata

Mutsuhiro Tanaka

Ken'ichi Ishizaka

When barrier synchronization is executed between multiple nodes that include a node and execute processing for a same job, the node transmits first data indicating an intermediate result of processing of the node to another node with which processing of the node is to be synchronized first among the multiple nodes, and receives second data indicating an intermediate result of processing of the other node from the other node. The node stores the first data of the node in a first memory region of a memory provided for the node, and store the second data of the other node in a second memory region of the memory.

Effective backup of data used by multiple nodes executing parallel processing

An information processing apparatus includes: a memory configured to store first transmission-waiting packets received from a first apparatus and second transmission-waiting packets received from a second apparatus; a communication circuit configured to transmit the first transmission-waiting packets and the second transmission-waiting packets in accordance with a predetermined ratio; and a processor configured to measure stay time period, in the memory, of certain packet among the second transmission-waiting packets, determine, by referring to correspondence information that indicates correspondence between a hop number and a threshold value for the stay time period, whether or not the measured stay time period is equal to or longer than the threshold value corresponding to the number of hops from the second apparatus to the information processing apparatus, and output, when the stay time period is determined to be equal to or longer than the threshold value, identification information capable of identifying the certain packet.

Information processing apparatus, method and computer readable medium

A heat exchange device that is coupled to an electronic device that includes an electronic component that generates heat, the heat exchange device includes: a first-channel through which a first-coolant that cools the electronic component flows; a heat-exchange-unit that performs heat exchange between the first-coolant and a second-coolant; a second-channel through which the second-coolant-flows; a first-coolant-detection-unit that detects leakage of the first-coolant from the first-channel; a collection-unit that collects the first-coolant that is leaked from the first-channel; a storage-unit that is provided in the first-channel and supplies the stored first-coolant to the first channel; a recovery-unit that is provided between the collection-unit and the storage-unit; and a control-unit that causes the recovery-unit to recover the first-coolant that is collected by the collection unit, into the storage-unit when the first-coolant-detection-unit detects leakage of the first-coolant.

Heat exchange device, electronic system, and cooling method of electronic system

A parallel processing system that has a synchronous function of creating a synchronous signal in a processing element to be synchronized by shifting synchronously from a program process to the next program process and can execute such a synchronous operation in a pipeline processing mode. The parallel processing system includes a plurality of signal lines arranged between a mutual connecting unit and each of the processing elements for transmitting the status information regarding each of the processing elements from the mutual connecting unit to all of the processing elements, and the transmitting circuit sequentially transmitting contents stored in the status storage unit to the plurality of signal lines, with predetermined phase difference, and then transmitting them in parallel to each of the processing elements. This parallel processing system is applicable to a computing system in which a plurality of processing elements share one program to execute a parallel processing operation.

Parallel processing system

A data processing unit is adapted to exchange data with another data processing unit via a network. The data processing unit includes a main storage for storing programs and data, an instruction processor for issuing transfer requests by executing programs stored in the main storage, and a transfer processor for enqueuing the transfer requests from the instruction processor into a transfer request queue, and for carrying out a transfer process between the main storage and the network based on each transfer request which is obtained from the transfer request queue. The transfer processor includes a failure display for displaying a failure when the failure occurs during the transfer process of each transfer request, a reference to and an erasure of a content of the failure display are possible from the instruction processor. The transfer process of the transfer request enqueued in the transfer request queue is prohibited during a time in which the failure is displayed in the failure display.

Transfer processor including a plurality of failure display units

Data processing unit

Growing community of inventors

Kawasaki, Japan

Tadao Amada