S. Nishimura et al., ERROR-FREE OPTICAL INTER-NODE CONNECTION FOR THE MASSIVELY-PARALLEL COMPUTER, IEEE photonics technology letters, 10(1), 1998, pp. 147-149
An optical inter-node connection in a massively parallel computer test
bed was used in order to determine whether large-throughput highly rel
iable inter-node communication is attainable, Highly reliable 48-b par
allel-data transmission at 100 MHz (600-MB/s throughput) was achieved.
For error-free data transmission, the total skew in the inter-node da
ta transmission was suppressed to less than +/-1 ns, In an 80-h pseudo
random packet-data transmission test, no errors were detected, This co
rresponds to a BER of less than 2.17 x 10(-15). Thus, it Is clearly sh
own that the optical interconnection overcomes the communication bottl
eneck in parallel-processing systems.