Acceleration of LOD-FDTD Method Using Fundamental Scheme on Graphics Processor Units

作者：Tan Eng Leong^*

来源：IEEE Microwave and Wireless Components Letters, 2010, 20(12): 648-650.

DOI：10.1109/LMWC.2010.2079922

• Alternating direction implicit (ADI) finite difference time domain (FDTD)
• FDTD method
• graphics processor unit (GPU)
• locally one-dimensional (LOD) FDTD
• split-step FDTD
• unconditionally stable FDTD method

This letter presents the acceleration of locally one-dimensional finite-difference time-domain (LOD-FDTD) method using fundamental scheme on graphics processor units (GPUs). Compared to the conventional scheme, the fundamental LOD-FDTD (denoted as FLOD-FDTD) scheme has its right-hand sides cast in the simplest form without involving matrix operators. This leads to a substantial reduction in floating-point operations as well as field and coefficient memory access. To reap further advantages of FLOD-FDTD, certain field updates are embedded in the implicit solutions while exploiting the reuse of field data. Using FLOD-FDTD, it is found that significant speed-up is achievable for the method on GPUs.

• 出版日期2010-12
• 单位南阳理工学院