{{version|14.8+}}
[[Image:FDTD58.png|thumb|300px|right|[[FDTD Module]]'s Engine Settings dialog]]
[[EM.Tempo]] presents three different options for acceleration. Some details about each of the options are discussed below:
*'''Single-Precision Solver:''' [[Image:FDTD58EM.pngTempo]]'s single-precision solver is a multi-threaded FDTD engine which also takes advantage of modern SIMD facilities (e.g. Intel AVX) found on most processors. It trades a slight reduction in overall accuracy for a relatively large boost in performance.{{note|thumb|300pxAccuracy-critical computations, such as Farfield calculation, are still performed in double-precision.}}{{note|If [[FDTD ModuleEM.Cube]]determines your system does not have the appropriate SIMD facilities to effectively run the single-precision solver, the double-precision solver will be run automatically.}}*'s Engine Settings dialog''Double-Precision Solver:''' [[EM.Tempo]]'s double-precision engine is also multi-threaded, and is slightly more accurate in some cases. It does not take advantage of any available SIMD facilities, which makes it a very portable solver.
*'''GPU Solver:''' [[EM.Tempo]]'s GPU solver is a CUDA-based engine which is capable of extreme performance (speedup of up to 40x).
{{note|Before attempting to use [[EM.Tempo]]'s GPU engine, please make sure all drivers are up to date.}}
{{note|It is critical to have the right environment to efficiently use the GPU solver. For immediate help, please contact collaborate@emagtech.com}}
===Thread Factor===
The thread factor determines how many threads are effectively used in the computation. It is only relevant for CPU-based solvers. While a thread factor of two or three usually yields the best performance, it is suggested that the user experiment to find the best thread factor for his/her system.
{{FDTD Details}}