Title :
GPU-accelerated 3D time-domain simulation of vacuum electron devices
Author :
Cooke, Simon J. ; Vlasov, Alexander N. ; Levush, Baruch ; Chernyavskiy, Igor A. ; Antonsen, Thomas M., Jr.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We present results of 3D time-domain simulations of vacuum electron devices performed on high-performance GPU hardware using a new simulation code, NEPTUNE. Electromagnetic field evolution using two techniques is compared. First a GPU implementation of the finite-difference time-domain (FDTD) method is shown to give a 20x reduction in execution time compared to an equivalent CPU code. Second, we demonstrate an implicit, complex-envelope ADI-FDTD algorithm on the GPU, achieving a further 5x reduction in execution time to give a combined rf simulation performance gain over 100x compared to conventional CPU FDTD solvers. A particle beam interaction model also running on the GPU is under development with the goal to achieve self-consistent 3D large-signal simulation.
Keywords :
coprocessors; electronic engineering computing; finite difference time-domain analysis; vacuum tubes; 3D large-signal simulation; CPU FDTD solvers; GPU implementation; GPU-accelerated 3D time-domain simulation; NEPTUNE; complex-envelope ADI-FDTD algorithm; electromagnetic field evolution; finite-difference time-domain method; high-performance GPU hardware; particle beam interaction model; vacuum electron devices; Computational modeling; Finite difference methods; Graphics processing unit; Performance evaluation; Solid modeling; Three dimensional displays; Time domain analysis; ADI-FDTD; particle-beam; slow-wave;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746997