Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Frédéric Blanc

Thierry Collette

Nicolas Ventroux

Raphaël David

Michel Harrand

Vincent David

Stéphane Louise

Stéphane Chevobbe

Farhat Thabet

Karim Ben Chehida

A system including a plurality of processing units for executing tasks in parallel and a communication network. The processing units are organized into clusters of units, each cluster comprising a local memory. The system includes means for statically allocating tasks to each cluster of units, so that a task of an application is processed by the same cluster of units from one execution to another. Each cluster includes cluster management means for allocating tasks to each of its processing units and space in the local memory for executing them, so that a given task of an application may not be processed by the same processing unit from one execution to another. The cluster management means includes means for managing the tasks, means for managing the processing units, means for managing the local memory and means for managing the communications involving its processing units. The management means operate simultaneously and cooperatively.

Statically allocating set of tasks to particular cluster and dynamically allocating each task to different processing units within cluster

The invention relates to a method for scheduling the processing of tasks and to the associated device, the processing of a task comprising a step for configuring resources required for executing the task and a step for executing the task on the thereby configured resources, the method comprising a selection () of at least one level of independent tasks to be processed in accordance with an order of precedence and a step for sorting () out the tasks of the level of tasks to be processed in order to define, an order of priority in the processing of the tasks, depending on the number of resources required for processing the tasks on the one hand and on a time characteristic of the tasks on the other hand.

Method for configuring resources and scheduling task processing with an order of precedence

A structure and a method for backing up and restitution of data allowing management of a memory space. The backup and restitution structure includes a matrix of connectors distributed in line and in column, on said matrix. Each connector of one line is connected to its two adjacent connectors. Each connector of one column is connected to its two adjacent connectors. Each line of connectors is connected to a memory of the first-in, first-out type, by a connector situated at one end of the line. Each column of connectors is connected to an input and, or output port of a data stream of the structure by a connector situated at one end of the column. Each connector propagates a data stream. An embodiment is suitable for an onboard computing system including a component, associating a computing structure and a memory space produced for example on one electronic circuit board.

Structure and method for backing up and restitution of data

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Bures sur Yvette, France

Frédéric Blanc