Literature Survey on a New Advanced Refactoring Based Approach for Parallelism Using Heterogeneous Parallel Architectures

Refactoring is the process of changing the structure of a program without changing its behavior. Refactoring has so far only really been deployed effectively for sequential programs. However, with the increased availability of multi core systems, refactoring can play an important role in helping both expert and non-expert parallel programmers structure and implement their parallel programs. This paper describes benefits or advantages of a refactoring approach for parallel programs using heterogeneous parallel architectures such as GPUs and CPUs. A refactoring based methodology gives many advantages over unaided parallel programming: it helps identify general patterns of parallelism; it guides the programmers through the process of refining a parallel program, whether new or existing; it enforces separation of concerns between application programmers and system programmers; and it reduces time to deployment. All of these advantages help programmers understand how to write parallel programs.