Patent ID: 8732331
Filing Date: 2014-05-20
Classification: G06F

Abstract:
1. In a computer system comprising a plurality of source nodes able to intercommunicate via a system switching fabric by introducing transactions onto the fabric, a method of managing the latency of internode communications, the method comprising: initiating communication of a first transaction from an initiator source node to a target source node; determining that the initiator node needs additional system bandwidth to the target node to timely complete the first transaction; notifying a plurality of source nodes that the initiator node needs additional system bandwidth; responsive to receiving the notification, stopping the introduction of new transactions onto the system fabric by at least some of the notified nodes; continuing the communication of the first transaction from the initiator node to the target node; determining that the first transaction has progressed to a preselected point; indicating to the notified nodes that the initiator node no longer needs additional system bandwidth; and responsive to receiving the indication, ceasing to stop the introduction of new transactions onto the system fabric by the notified nodes, whereby the latency of the communication of the first transaction from the initiator node to the target node is managed.