Abstract: A novel high performance computing system (HPCS) based on asynchronous OPS and optical multicast is presented. Distributed management is realized in the tree-like structure and can easily achieve all-optical scalability. A 3.2Tbit/s huge capacity fiber with 40 GBit/s single channel capacity is used, and it can interconnect 6400 nodes in two-stage architecture. The packets retransmission mechanism is used to resolve the system collision. Stability and packets waiting delay of the system are simulated. System stability increases with the number (k) and sending rate (b) of old packets, and when b increases to infinity, the maximum value of packets arriving rate (λ) goes to 800packets/s. The packets waiting delay induced by the collision increases with λ while decreasing with the packets leaving rate (μ) and the number of the service windows (C). When C is more than 6 or μ increases to 1000packets/s, the waiting delay decreases to the order of 10-10 seconds.

Key words: HPCS, asynchronous OPS, multicast, delay, stability