Defining Hybrid Distributed Shared Memory Consistency Models on Unified Framework

DSM (Distributed Shared Memory) system combines the advantages of shared memory parallel computer and distributed system. The value of DSM is depended upon the performance of MCM (Memory consistency Model). Lots of Consistency Model are defined by a wide variety of source including architecture system, application programmer etc. But basically it is combined in two types: uniform model and hybrid model. In this paper we described only hybrid models for DSM. As hybrid model consider read, write as well as synchronization operation. So the paper reviews and discusses the different memory consistency models of distributed shared memory which are based on read, write as well as synchronization operation.