| 摘要 |
A parallel processing system consists of a plurality of processor elements and a network for connecting the processor elements to each other. The processor elements include a processor, a memory and a data transfer apparatus, all connected to a common bus. The data transfer apparatus includes three buffers, while a data relay includes two buffers. In data transfer from a processor element to another processor element, a data is relayed in a third processor element only with use of a buffer, or a write/read operation is not performed in the third processor element. Then, the overhead is decreased and the transfer capability is improved. Further, the data transfer apparatus does not access the common bus, so that the width of the bus can be increased, and the processing performance of the processor can be improved.
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