| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multi-node system transferring data at every node at the time of broadcast transfer and improving transfer performance. SOLUTION: When broadcast is performed to the whole nodes, transfer data are stored in the buffer 41-0 of a switch part 4-0. When a broadcast instruction is detected in a command detection circuit 44-0, data are read from the buffer 41-0 and are stored in a broadcast buffer 50-0. Instruction flags 540-0 and 541-0, whose number is similar to that of the nodes, are set by the instruction of an instruction flag control means 55-0. A route acquirement request signal is outputted to route selection circuits 45-0 and 45-1 in the corresponding switch parts 4-0 and 4-1 from all the instruction flags 540-0 and 541-0. When the route is secured, data are outputted from the broadcast buffer 50-0 and transferred to the node via route switch circuits 46-0 and 46-1.</p> |
