The Distributed Programming Language INSEL - Concepts and Implementation

In this paper the high-level distributed programming language INSEL and its Mach-based runtime system are presented. INSEL is a general purpose programming language for parallel and distributed programming. INSEL is objectbased and allows for client/server-style as well as DSM-style programming on a high level of abstraction. To achieve runtime efficiency of INSEL-systems a distributed manager architecture has been devised which acts as a framework for a variety of alternatives for the transformation of languagelevel objects to basic mechanisms supplied by an underlying distributed base layer. The decisions on object placement, object representation and object access are based on compile-time and run-time analysis to gain high performance by exploiting static and dynamic knowledge of object