Fujitsu Corporation

Jumpei Kubota

Tsuyoshi Hashimoto

A processor-fault reproduction method includes: determining a heating time of a processor taken using a heating program which heats the processor to a fault occurrence temperature when a fault occurs from a current temperature based on first information regarding the current temperature of the processor, second information regarding a power consumption value and a temperature of the processor before the fault occurs and a refrigerant temperature of a cooling medium to cool the processor, third information regarding the fault occurrence temperature, and fourth information regarding a power consumption value of the processor during execution of the heating program; determining an execution time by adding a fault reproduction time taken by a fault reproducing program which reproduces a state of the processor when the fault occurs to the heating time; and reporting the execution time to a job scheduler with a request to execute the heating and fault reproducing programs.

Processor-fault reproduction method, information processing apparatus, and recording medium recording execution-time reporting program

Information processing equipment includes: arithmetic processing units configured to execute jobs, respectively; a supply channel through which a coolant flows, the coolant absorbing heat generated by the arithmetic processing units; a circulating device configured to circulate the coolant in the supply channel through an outlet to output the coolant; and a job allocation device configured to allocate a job, when allocating the jobs to the arithmetic processing units, to a job non-execution arithmetic processing unit, if any, that is the arithmetic processing unit executing no job among the arithmetic processing units, the job non-execution arithmetic processing unit being positioned closer to the outlet side on the supply channel.

Information processing equipment and method for controlling information processing equipment

An electronic apparatus includes: a flowpath through which a liquid flows; a heat-generating body that is cooled by the liquid; a liquid temperature measuring device that measures a temperature of the liquid; a temperature measuring device that measures a temperature of the heat-generating body; a heat generation amount measuring device that measures a heat generation amount of the heat-generating body; a storage apparatus that stores information representing a relationship between a temperature of the liquid, a temperature of the heat-generating body, a heat generation amount of the heat-generating body, and a flow rate of the liquid; and a processing apparatus that calculates the flow rate of liquid from the temperature of the liquid measured by the liquid temperature measuring device, the temperature of the heat-generating body measured by the temperature measuring device, and the heat generation amount of the heat-generating body based on information inside the storage apparatus.

Electronic apparatus, method of controlling electronic apparatus and control device for controlling electronic apparatus based on calculated flow rate

A heat receiving apparatus includes a heat receiver including: a case that is provided at its inside with a flow path through which a refrigerant flows, and that conducts heat from a heat-generating part arranged outside the case; and a valve that is capable of changing a cross sectional area of a part of the flow path in a state where the refrigerant flows through the flow path.

Heat receiving apparatus, cooling apparatus, and electronic apparatus

A system that cools an electric component by a cooling medium cooled by a heat exchanger, the system includes a pipe through which a cooling medium to cool the electronic component flows; a metal member configured to be coupled with an outer surface of the pipe; a Peltier device configured to cool the metal member to a temperature lower than a temperature of the outer surface of the pipe; a detector that detects dew condensation of outer air occurring on the metal member; and a processor that lowers the temperature of the cooling medium, and stops lowering a temperature of cooling medium when the occurrence of dew condensation of outer air on the metal member is detected.

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Yokohama, Japan

Jumpei Kubota