Bull S.a.

Jack Abily

Jean Yujun Qian

Christophe Dionet

Jean-Francedillaois Autechaud

Yu Jun Qian

A process and system for flushing high-speed buffers in a serial link used between a mover circuit (4) that executes data move operations and at least two memories through at least two channels (400, 401), the data move operations each being constituted by a move request followed by the return of a response or acknowledgement of the request, cyclically with interlacing, the responses following the same pair of serial channels (400, 401) as the requests for which they constitute the acknowledgements. The process comprises:

System for flushing high-speed serial link buffers by ignoring received

In order to move data blocks from a source memory unit (8, 9, 12) to a target memory unit (12, 8, 9) by means of a data path (5, 6, 7), wherein the blocks moved are not necessarily framed in the blocks of the source memory and the target memory, an electrical circuit makes it possible to perform a framing with a granularity equal to the width of the data path. To reduce latency, the framing is done by a shift register with a storage capacity reduced to that of a single block.

Circuit for moving data between remote memories and a computer

Electrical circuit (5) arranged to move data blocks from a source memory unit (8, 9, 12) to a target memory unit (9, 12, 8) by a data path (5, 6, 7), to send, in a given order, requests to read blocks in the source memory, to generate an end marker in the request to read the last block of the source memory, to receive the blocks read, in the form of response messages, in the order in which the requests were sent, and to send requests to write the received blocks, in the target memory, during receiving of response messages until receiving a message from the source memory with the end marker.

Circuit for moving data between remote memories and computer comprising

In order to allow an external memory space to enter into the memory space of a microprocessor (43) comprising a cache memory (94), an integrated circuit (42) serves as an interface between the microprocessor (43) and a memory unit (8, 9, 12) constituting the external memory space. The integrated circuit (42) comprises a stack (91) sized for containing a data block from the memory unit (8, 9, 12) such that the block from the memory unit (8, 9, 12) is seen as one or more blocks in the cache memory (94), and a register (93) belonging to the memory space of the microprocessor (43) adapted to contain the coordinates for access to the memory unit (8, 9, 12).

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Plaisir, France

Jack Abily