Kalray

Yves Durand

Michel Harrand

Benoit Dupont De Dinechin

Patrice Couvert

Benoît Dupont De Dinechin

Alexandre Blampey

Thomas Champseix

A system for transmitting concurrent data flows on a network, includes a memory containing data of data flows; a plurality of queues assigned respectively to the data flows, organized to receive the data as atomic transmission units; a flow regulator to poll the queues in sequence and, if the polled queue contains a full transmission unit, transmitting the unit on the network at a nominal flow-rate of the network; a sequencer to poll the queues in a round-robin manner and enable a data request signal when the filling level of the polled queue is below a threshold common to all queues, which threshold is greater than the size of the largest transmission unit; and a direct memory access configured to receive the data request signal and respond thereto by transferring data from the memory to the corresponding queue at a nominal speed of the system, up to the common threshold.

System for transmitting concurrent data flows on a network

A credit-based data flow control method between a consumer device and a producer device. The method includes the steps of decrementing a credit counter for each transmission of a sequence of data by the producer device, arresting data transmission when the credit counter reaches zero, sending a credit each time the consumer device has consumed a data sequence and incrementing the credit counter upon receipt of each credit.

Stream management in an on-chip network

The present invention relates to a method for limiting the throughput of a communication in a meshed network, comprising the following steps: allocating fixed paths to communications likely to be established on the network; identifying the communications likely to take a mesh segment; allocating respective throughput quotas to the identified communications such that the sum of these quotas is less than or equal to a nominal throughput of said segment; and measuring the throughput of each communication at the input of the network and suspending the communication when its quota is reached.

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Saint Ismier, France

Yves Durand