Difference between revisions of "EM.Tempo Acceleration"

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[[EM.Tempo]] presents three different options for acceleration.  Some details about each of the options are discussed below:
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*'''Single-Precision Solver:''' [[EM.Tempo]]'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.
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{{note|Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.}}
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{{note|If [[EM.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.}}
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*'''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.
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*'''GPU Solver:'''
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{{note|Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.}}
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{{note|Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.}}
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==Thread Factor==
  
 
[[Image:FDTD58.png|thumb|300px|[[FDTD Module]]'s Engine Settings dialog]]
 
[[Image:FDTD58.png|thumb|300px|[[FDTD Module]]'s Engine Settings dialog]]

Revision as of 15:36, 29 August 2014

EM.Tempo presents three different options for acceleration. Some details about each of the options are discussed below:

  • Single-Precision Solver: EM.Tempo'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.
Attention icon.png Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.
Attention icon.png If EM.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.
  • 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:
Attention icon.png Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.
Attention icon.png Accuracy-critical computations, such as Farfield calculation, are still performed in double-precision.

Thread Factor

FDTD Module's Engine Settings dialog




Fdtd-ico tn.png More Articles Related To: EM.Tempo

Mathematical Details: Differential Form of Maxwell's Equations - Waveform, Bandwidth, Stability - Perfectly Matched Layer Termination - Time Domain Simulation of Periodic Structures - Farfield Calculations in EM.Tempo - Waveforms and Discrete Fourier Transforms

Advanced Simulation Options: Advanced CPML Setup - Radiation Pattern Above A Half Space Medium - Advanced Meshing in EM.Tempo - EM.Tempo Acceleration

Tutorials: FDTDLesson1 - FDTDLesson2 - FDTDLesson3 - FDTDLesson4

Last modified on 29 August 2014, at 15:36