Fine-grain message-passing concurrent computers

Abstract

Fine-grain concurrent computers, by operating at a fine grain, increase the amount of concurrency that can be efficiently exploited in a given problem. Programming is simplified because programs may be partitioned into natural units of methods and objects and these objects are addressed uniformly whether they are local or remote. The construction of these machines poses challenging problems in reducing overhead, increasing communication bandwidth, and developing resource management techniques. This paper describes this class of machines, the challenges posed by their construction, and recent progress toward meeting these challenges.