Object consistency-a new model for distributed memory systems

This paper presents main ideas of object consistency (OC)-a new consistency model for distributed shared memory (DSM) systems. It was developed by analyzing various sharing patterns in real parallel applications as well as existing coherency models for both flat and object-based DSMs. OC is an attempt to effectively integrate entry consistency (EC) and version consistency (VC) into a single consistency model which poses language-level objects as the grain of sharing and coherency. The main features of OC include: support for both the EC and VC styles of sharing, multiple-writer protocol for objects, and explicit control over function and data shipping