Bull Sas

Bull

Yann Maupu

Thomas Cadeau

Matthieu Daniel

An information processing system (TS) includes: a set of information processing devices forming a plurality of electrical circuits (C, C, C. . . Cn) supplied with power via a power supply source (S), cooling elements (MR) being placed near at least part of the electrical circuits; at least one Stirling engine, the cooling elements (MR) of which form a hot source and produce a mechanical movement (Mvt) on the basis of a temperature differential (&#x394;T) between the hot source and a cold source (SF); and a generator (G) providing an electric current (i) on the basis of the mechanical movement.

Use of Stirling engines for information processing system

The invention relates to a method for organizing tasks, in at least some nodes of a computer cluster, comprising: First, launching two containers on each of said nodes, a standard container and a priority container, next, for all or part of said nodes with two containers, at each node, while a priority task does not occur, assigning one or more available resources of the node to the standard container thereof in order to execute a standard task, the priority container thereof not executing any task, when a priority task occurs, dynamically switching only a portion of the resources from the standard container thereof to the priority container thereof, such that, the priority task is executed in the priority container with the switched portion of the resources, and the standard task continues to be executed, without being halted, in the standard container with the non-switched portion of the resources.

Method for organizing tasks in the nodes of a computer cluster, associated task organizer and cluster

A method for determining an optimal frequency (f) for the execution of a software application on an information processing system. The method includes a first execution of said application at a predetermined frequency (f), making it possible to determine an overall execution time (T) and an overall energy consumption (E) and a second execution of said application at the same frequency by means of a measurement tool, making it possible to determine measurements (T*, T*, T*) on said execution; a step of determining a first law providing an execution time (t(f)) as a function of the frequency (f), and a second law providing an energy consumption (E(f)) as a function of the frequency (f); and a step of determining said optimal frequency (f) as the frequency optimizing a criterion (C(f)) combining said execution time and said energy consumption, as a function of the frequency.

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Arpajon, France

Yann Maupu