The Study Of MoM And FDTD On CPU/MIC Heterogeneous Platforms

Computational electromagnetics is a necessary means to solve the problem of electromagnetic, however detailed simulation brings greater demand for computing performance. The cluster equipped with accelerator has strong computing power. However, there is on paper in computational electromagnetics filed research on CPU/MIC heterogeneous platform. In this thesis, two classical algorithms of computational electromagnetics, method of moments(Mo M) and the finite difference time domain method(FDTD), are applied to the CPU/MIC heterogeneous clusters.Method of moments is the highest accuracy numerical method in computational electromagnetics. The parallel method of moments can speed up the solution efficiency. The parallel distribution strategy of impedance matrix of parallel Mo M as same as Sca LAPACK, and using MPI parallel techniques to realize communication between nodes. According to the result of program analysis of existing parallel method of moments and MIC hardware features, using offload programming model to accelerate the matrix solving. In order to break through the limitation of MIC memory at the same time, an asynchronous communication architecture design to realize the overlap of communication and computing tasks on MIC. The optimization test of that the PCI-E transmission speed and the shape of matrix impact on the performance of MIC has been performed. At last, a noticeable speedup is achieved with the new parallel framework and optimal parameter.In the acceleration process of parallel FDTD program, drawing on experience in the method of moments. Combined with the characteristics of the program and test results, the parallel framework has presented and the test of optimizing data transmission between host and device has performed. Finally the project has confirmed which can realize the data transmit between the CPU and MIC in synchronous communication.