Fujitsu Corporation

Shimadzu Corporation

The University of Tokyo

The University of Electro-Communications

Public University Corporation Yokohama City University

Hiroyuki Fukuda

Hiroshi Endo

Hiroyoshi Kodama

Shigeto Suzuki

Masatoshi Ogawa

Takahiro Arioka

Masao Kondo

Takeo Kasajima

Satoshi Inano

Kazushi Uno

Yukiko Wakino

Minoru Ishinabe

Shigeyoshi Umemiya

Hiroaki Yoshida

Fumio Takei

Takuji Yamamoto

Kazumi Kojima

Shino Tokuyo

Takashi Nakanishi

Michiko Shiraga

Mitsuru Hirose

Takashi Shiraishi

Takashi Azuma

Masaki Takahashi

Hideo Kubo

Yosuke Iwata

Toshio Sugimoto

Kazuaki Karasawa

Yoshiyasu Doi

Koichi Shirahata

Akira Minegishi

Yoshio Kikuchi

Naohiko Sugita

Mamoru Mitsuishi

Kyohei Tomita

Hiroyuki Tsukihara

Norihiro Koizumi

Yu Nishiyama

Kazushi Numata

Yoichiro Matsumoto

Takehisa Matsuda

Syunsuke Ohga

Ayasa So

Atsushi Kayasuga

Izumu Hosoi

Hideyo Miyazaki

Kiyoshi Yoshinaka

Yukio Homma

A non-transitory computer-readable recording medium has stored therein a program that causes a computer to execute a process including: dividing a time from a start to an end of execution of a first job into a plurality of time periods, the time being represented in first power consumption information; calculating a cycle of a time-series variation of power consumption within each time period; generating, for each of the plurality of time periods, a prediction model for predicting power consumption of a predetermined future time; acquiring second power consumption information that is an actual measurement value of power consumption according to an elapsed time from a start of execution of a second job that is being executed; and predicting future power consumption of the second job, using the prediction model generated for a time period including the elapsed time from the start of execution of the second job to a present.

Job power predicting method and information processing apparatus

An apparatus calculates, based on attribute information of a new job and jobs that have been executed, a first similarity level of the attribute information between the new job and the jobs by using a calculation expression, identifies a job whose attribute information is most similar to that of the new job as a first candidate job, and estimates power consumption to be consumed by the new job at power consumption of the first candidate job. The apparatus calculates, for at least one of the jobs, a second similarity level of power consumption between the at least one of the jobs and the new job, identifies a job whose power consumption is most similar to that of the new job as a second candidate job, and adjusts the calculation expression to increase the first similarity level to be calculated between the new job and the second candidate job.

Estimation of power consumption for a job based on adjusted calculation of similarities between jobs

A management apparatus includes a memory; and a processor configured to: store configuration information and performance information for each of a plurality of information processing apparatuses acquired from a host OS executed by each of a plurality of groups to which the plurality of information processing apparatuses belong and each of which provides a given service into the memory for each of the plurality of groups, select, based on the configuration information and the performance information, a movement target virtual machine for each of the plurality of groups, when the movement target virtual machine is moved to the different group, determine whether a performance value of a service corresponding to the movement target virtual machine satisfies a reference value, and when it is determined that the performance value satisfies the reference value, determine to move the movement target virtual machine from the target group to the different group.

Management apparatus, control method of calculation resources, and storage medium

A data center management method executed by a computer that includes a first memory and a second memory, the method includes storing, in the second memory, a predicted value calculated based on measured values obtained as measurement data and differences each corresponding to the measurement data obtained a predetermined period ago; storing, in the first memory, the measurement data as the measured value; calculating, based on each of the stored measured values, an amount of change which is a difference between the measured value and the predicted value, and storing the calculated amount in the second memory; calculating first corrected prediction data based on the measured value currently measured and the measurement values previously measured; calculating second corrected prediction data based on previous amounts of change and the first corrected prediction data; and controlling the device using an operation amount calculated based on the second corrected prediction data.

Data center management method, management apparatus, and data center system

A determination device includes: a memory; and a processor coupled to the memory and the processor configured to executes a process, the process comprising: generating a reference model of a sensor detection value; determining whether a time from a predetermined point in time until a deviation between the reference model and the sensor detection value exceeds a threshold is shorter than a predetermined time; and outputting a signal associated with an abnormality when the time is determined to be shorter.

Determination device, determination method, and non-transitory computer-readable recording medium

A cooling system includes: a cooling device; a pump coupled to the cooling device; and a waste heat device coupled to the cooling device, wherein the cooling device includes: a first refrigerant tank and a second refrigerant tank that each stores a first refrigerant that is output from the waste heat device and input to the waste heat device; and a liquid immersion tank sandwiched between the first refrigerant tank and the second refrigerant tank and configured to hold an electronic device in a second refrigerant that is output from the pump and input to the pump.

Cooling system, cooling device, and electronic system

An apparatus for liquid immersion cooling, the apparatus includes: a casing configured to be partly filled with a first coolant and immerse, in the first coolant, a heat generating component other than a first heat generating component in a plurality of heat generating component; a liquid cooling jacket provided in contact with the first heat generating component placed in the casing, and configured to cool the first heat generating component; a first cooling device configured to dissipate heat of a second coolant sent out from the liquid cooling jacket through a first pipe, thereby cooling the second coolant; and a first pump configured to send out the second coolant cooled by the first cooling device to the liquid cooling jacket through a second pipe.

Apparatus for liquid immersion cooling, system for liquid immersion cooling, and method of cooling electronic device

A migration management method includes referring to a performance deterioration rate of a specific virtual server when utilization of a virtual server other than the specific virtual server in virtual servers that work on a physical server is changed in a stepwise manner, and calculating a first index value relating to a load state of the physical server before the performance deterioration rate exceeds a threshold based on a number of virtual CPUs allocated to each of the virtual servers and utilization of the virtual CPUs; calculating a second index value relating to the load state based on the number of virtual CPUs and the utilization while the specific virtual server is activated on the physical server; and conducting migration to another physical server for a virtual server other than the specific virtual server in the virtual servers when the calculated second index value exceeds the calculated first index value.

Virtual server migration after performance deterioration

A temperature measurement device includes: a light source configured to input a light into an optical fiber; a detector configured to detect a Stokes component and an anti-Stokes component from a back scattering light from the optical fiber; a memory; and a processor configured to execute a process, the process comprising: in a predetermined region including a sample point of the optical fiber, calculating a range including the sample point in accordance with a largeness of a correlation between the Stokes component and the anti-Stokes component; smoothing the Stokes component and the anti-Stokes component in the range; and measuring a temperature of the sample point with use of the Stokes component and the anti-Stokes component that are smoothed by the corrector.

Temperature measurement device, temperature measurement method, and computer-readable non-transitory medium

An apparatus includes: a cooling medium bath configured to house a first refrigerant in which an electronic device is immersed; a liquid-cooling jacket configured to be provided to the electronic device and to cool the electronic device by a second refrigerant that flows in an internal section of the liquid-cooling jacket; a first pipe coupled to the cooling medium bath, to be immersed in the first refrigerant, and configured to supply the second refrigerant from an outside of the cooling medium bath to the liquid-cooling jacket; a second pipe coupled to the cooling medium bath, to be immersed in the first refrigerant, and configured to discharge the second refrigerant that flows in the internal section of the liquid-cooling jacket to the outside of the cooling medium bath; and a circulator configured to cause the first refrigerant in the cooling medium bath to stream.

Liquid cooling device, liquid cooling system, and control method of liquid cooling device

A migration control apparatus includes one or more processors configured to successively select, as a first group, a virtual machine in an ascending order of power consumption from among a first plurality of virtual machines, until total power consumption of one or more non-selected virtual machines in the first plurality of virtual machines falls below a threshold, successively select, as a second group, another virtual machine in a descending order of power consumption from among the first plurality of virtual machines, until total power consumption of one or more other non-selected virtual machines in the first plurality of virtual machines falls below the threshold, select a specific group in accordance with a first number of virtual machines included in the first group and a second number of virtual machines included in the second group, and perform migration for at least one virtual machine included in the specific group.

Migration control apparatus and migration control method

A temperature measurement device includes: a detector to detect first Stokes and anti-Stokes components when a light is input into a first end of an optical fiber and detect second Stokes and anti-Stokes components when a light is input into a second end; and a processor to execute a process including: calculating a first section from a first correlation between the second Stokes component and at least one of the first Stokes and the first anti-Stokes components, calculating a second section from a second correlation between the second anti-Stokes component and at least one of the first Stokes and the first anti-Stokes components, smoothing the second Stokes component in the first section, smoothing the second anti-Stokes component in the second section; and measuring a temperature by using the second Stokes and the second anti-Stokes components after smoothing, the first Stokes component and the second Stokes component.

A temperature measurement device includes: a detector to detect a first Stokes component and a first anti-Stokes component when a light is input into a first end of an optical fiber and detect a second Stokes component and a second anti-Stokes component when a light is input into a second end; and a processor configured to execute a process comprising: replacing the second anti-Stokes component with a value according to the first Stokes component, the first anti-Stokes component and the second Stokes component when any one of correlations of the second anti-Stokes component to the first Stokes component and the first anti-Stokes component is less than or equal to a threshold value; and measuring a temperature at the sample point by using the first Stokes component, the first anti-Stokes component, the second Stokes component, and the second anti-Stokes component that is replaced in the replacing.

An information processing device includes: a memory configured to store a management program; and a processor coupled to the memory, wherein the processor, based on the management program, performs operations of: collecting operation status information stored in a storage of each of one or more information processing devices and related to an operation status of a calculation resource of each of the one or more information processing devices; determining whether the operation status information has periodicity based on the operation status information and a threshold; producing, when it is determined that the operation status information has periodicity, past activation information related to the operation status in a past duration in which the periodicity is present; and generates a prediction value of the operation status information based on the operation status information and the past activation information.

Determining periodicity of operation status information to predict future operation statuses of resources of the information processing devices

A communication control device includes an authentication login information storage unit that stores therein authentication login information. When a terminal device connects to a first communication port among a plurality of communication ports, the communication control device compares login information received from the terminal device with the authentication login information, and if they match, the communication control device outputs a command received from the terminal device. A control device includes an authentication unique information storage unit that stores therein authentication unique information. When the communication control device outputs the command received from the terminal device, the control device compares the unique information of the terminal device with the authentication unique information, and if they match, causes a processor to perform only a process of reading control information according to the command received from the terminal device.

Information processing apparatus and method of controlling information processing apparatus

Growing community of inventors

Yokohama, Japan

Hiroyuki Fukuda