Fabric router with flit caching

Details Fabric router with flit caching Fabric router with flit caching

H - Electricity

04

L

H04L 12/44 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2372644

In a fabric router, flits are stored on chip in a first set of rapidly accessible flit buffers, and overflow from the first set of flit buffers is stored in a second set of off-chip flit buffers that are accessed more slowly than the first set. The flit buffers may include a buffer pool accessed through a pointer array or a set associative cache. Flow control between network nodes stops the arrival of new flits while transferring flits between the first set of buffers and the second of buffers.

Cette invention se rapporte à un routeur de matrice, dans lequel des segments flits sont stockés sur une puce dans un premier ensemble de tampons de segments flits rapidement accessibles et le trop-plein provenant du premier ensemble de tampons de segments flits est stocké dans un second ensemble de tampons de segments flits hors puce, lesquels font l'objet d'un accès plus lent que ceux du premier ensemble. Les tampons de segments flits peuvent comporter un pool tampon auquel on accède par une série de pointeurs ou par une antémémoire associative d'ensembles. La commande du flux entre les noeuds du réseau interrompt l'arrivée de nouveaux segments flits, pendant le transfert des segments flits entre le premier et le second ensemble de tampons.

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