Most of the revealed optical interconnect networks within the high performance computers require either the buffering and O-E-O conversion of the data packets or the pre-assigning of the optical path from the source to destination

which to a certain extent influence the performance metrics such as latency and throughput.Aiming at the limitation mentioned above

a novel Bufferless Optical Interconnection Network (BOIN) for high performance computer is brought forward.Together with the data link protocol

deadlock freedom and livelock freedom routing algorithms

the upper bound of the data transmission latency in BOIN are also presented.The simulation is based on the comparison of BOIN and the other two similar networks.The results show that BOIN has the advantage over the rest that can deliver high throughput at low latency

which can well satisfy the need of high performance computing systems.