Defining Uniform Distributed Shared Memory Consistency Models on Unified Framework

Distributed Shared Memory (DSM) is an architectural approach that allows processors to support a single shared address space that is implemented with physically distributed memory. The consistency model of a DSM system specifies the ordering constraints on concurrent memory accesses by multiple processors. Lots of Consistency Model are defined by a wide variety of source including architecture system, application programmer etc. Firstly the paper reviews and discusses the main Distributed Shared Memory Consistency Models and presents a Unified Framework and then defines each model separately on the basis of unified framework. This paper considers only the 'read' and 'write' memory operation to define the memory models.