Patent ID: 8589596
Filing Date: 2013-11-19
Classification: G06F

Abstract:
1. A data transfer controlling apparatus for controlling a data transfer among a plurality of nodes in an information processing apparatus including a plurality of route switching devices to each of which a plurality of nodes are connected, the data transfer controlling apparatus comprising: a first controlling unit that performs a broadcast transfer to a plurality of processors within a first node connected to a first route switching device other than a processor which sends a request of the broadcast transfer, sends the request of the broadcast transfer to nodes other than the first node which are connected to the first route switching device, and requests a second node representing nodes connected to a second route switching device that is connected to the first route switching device to perform the broadcast transfer on behalf of nodes connected to the second route switching device when the first controlling unit receives the request of the broadcast transfer from the processor within the first node connected to the first route switching device; and a second controlling unit that performs a broadcast transfer to processors within the first node and sends a request of the broadcast transfer to nodes other than the first node which are connected to the first route switching device when the second controlling unit receives a request to perform the broadcast transfer on behalf of nodes connected to the first route switching device from the second node.