Shared memory programming model has several advantages over message passing model. To share programs to write correctly and efficiently store, shared memory semantics programmers need a precise notion. Formally establish a shared memory multi-memory consistency model, memory system will appear to you to programmers. Memory consistency model and control system, which affects not only how parallel programs are written, but an interface between parallel hardware and software design almost every aspect. Memory consistency model specification between the controller and the system is required on each interface. Each level, memory consistency model affects both programming and performance.

In addition, consensus is lacking on a model, to replace the affected software systems to support its various models, because of portability. Unfortunately, the extensive literature that describes the model of consistency, using complex terminology to describe the variety of models. This makes it difficult often subtle differences between models to understand, but is important and many misunderstandings. This article memory consistency models in a way that they can understand that describes the computer professionals. Memory systems model of stability for the purpose proposed is based on shared hardware. Most of these models emphasize the optimization of system support, and the author carefully consider the product of the system.

Memory performance programmability and portability of the model has the consistency of a system. We computer professionals a way that they will understand the description of the memory consistency model. It is important that performance-enhancing features that are created by system designers and programmers right away should be. Our goal is consistency models for shared memory systems is proposed based on the hardware. Most of these models, systems support, and maintenance of the system to maintain the emphasis on adaptation. It also describes an alternative, programmer centric models that describe the program behavior in terms of the comfortable stability in view of system optimization is to

This is a very general term. Sequential consistency means that a set of instructions that the order in which they thread / processor are implemented will take place in a program. Processor system, it is quite simple and the way they naturally think of programs in systems with multiple processors (strict consistency. See), so we interpolation between the two programs in any sequentially consistent program can take into account. Assuming that each of these statements is nuclear.