A Process Fusion Approach for MPI Performance Enhancement on Multi-core Systems

With the growing popularity of multi-core technology, traditional MPI programs are facing great challenges in fully exploit the computing power of this kind of chipsets. In this paper, we change the run time orgnaization of a MPI program and use some newly designed communication methods to enhance the performance of MPI programs on a multicore system without changing the code. We have evaluated the test results and the potential "side effects\´\´ of this technique is discussed in the paper as well. The remarks on the related and possible future research work is also given in the end of the paper.