Patent ID: 7853147
Filing Date: 2010-12-14
Classification: H04Q

Abstract:
1. An information processing system with a plurality of calculation nodes connected to each other through an optical transmission path, in which the optical transmission comprises: a plurality of first optical path switching units for switching connections between a plurality of the calculation nodes; and a plurality of second optical path switching units for wavelength division multiplexing optical signals transmitted and received between a plurality of the calculation nodes as selected using a wavelength of each of the optical signals and for variably controlling communication capacity to the calculation node of an individual connection destination in units of wavelength, wherein at least one of the plurality of the second optical path switching units is provided to each of an input unit and an output unit of optical signals in each calculation node, between the plurality of first optical path switching units and the plurality of second optical path switching units, a full-mesh connection, to which all of the calculation nodes are connected at the same time through the plurality of the second optical path switching units, is configured, the plurality of calculation nodes configure a 3-dimensional-Torus connection through at least one of the plurality of the first optical path switching units, at least one of the plurality of the second optical path switching units and the optical transmission path, using wavelengths of optical signals, optical signals in groups of different wavelengths are assigned to each of positive and negative connection directions of three axes, X, Y and Z, in the 3-dimensional-Torus connection, and communication between the plurality of calculation nodes by wavelength division multiplexing is performed, a drop wavelength corresponding to a coordinate on the 3-dimensional-Torus connection for each calculation node is set, and a calculation node of a transmission side is allowed to determine a node connection destination, a number of calculation nodes of the node connection destination is estimated according to a scale of an application program which is being executed, and a shortest route is calculated, a configuration of the 3-dimensional-Torus connection is changed by the plurality of second optical path switching units to optimize a coordinate of a communication destination calculation node, an output wavelength corresponding to the communication destination calculation node is selected and output to the 3-dimensional-Torus connection, and the output is received by the communication destination calculation node corresponding to the output wavelength.