Suitability of Message Passing Computers for Implementing Production Systems

摘要

Two important parallel architecture types are the shared-memory architectures and the message-passing architectures. In the past researchers working on the parallel implementations of production systems have focussed either on shared-memory multiprocessors or on special purpose architectures. Message-passing computers have not been studied. The main reasons have been the large message-passing latency (as large as a few milliseconds) and high message reception overheads (several hundred microseconds) exhibited by the first generation message-passing computers. These overheads are too large for the parallel implementation of production systems, where it is necessary to exploit parallelism at a very fine granularity to obtain significant speed-up (subtasks execute about 100 machine instructions). Reprints. (jes)