Abstract
Production systems (PSs), based on a very general idea (condition-action pairs), are widely used in artificial intelligence for modeling intelligent behavior and building expert systems. However, PS programs are very computation-intensive and run quite slowly. This precludes the use of PSs in many domains that require real-time response and high performance. Our approach for speeding up the execution of PSs is to design special message-handling machines, with architectures matched with the characteristics of the algorithms. In this line, a model that allows one to describe a PS as a set of concurrent processes, operating in a cooperative way and communicating through channels, is developed. To prove its validity, the model is used to develop a distributed production system for Printed Circuit Board (PCB) routing. A special machine, which efficiently supports the defined set of processes, also has been designed. This problem has been selected because it is complex and time consuming.
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