FDTD Computation Time Estimation

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Felix_Yusopov
Posts: 13
Joined: Sat 08 Sep 2018, 01:05

FDTD Computation Time Estimation

Post by Felix_Yusopov » Sat 19 Jan 2019, 02:19

Hi all,

Apologies beforehand if this is a naive question.

I was wondering if I could use the values outputted by the FDTD engine as it set ups and runs the simulation to roughly estimate how long the simulation will take to complete.

In essence, can I use the total number of FDTD cells in my mesh, the length in time steps of the excitation signal, the value of the time step and the speed estimates of seconds/TS ( ex: 143.0 MC/s (1.563e-002 s/TS) ) to calculate how many hours or minutes the simulation will take ? My speed in seconds/TS stays relatively consistent over the course of my simulations.

Hale_812
Posts: 171
Joined: Fri 13 May 2016, 02:54

Re: FDTD Computation Time Estimation

Post by Hale_812 » Wed 23 Jan 2019, 00:53

it is hard because you don't know how the wave would propagate and where...
For sure you only know the time of excitation.
But you can check the evolution in ParaView during simulation and estimate using your expectations and path passed... i.e. "use the force, Luke"...

Felix_Yusopov
Posts: 13
Joined: Sat 08 Sep 2018, 01:05

Re: FDTD Computation Time Estimation

Post by Felix_Yusopov » Wed 23 Jan 2019, 22:14

Thanks Hale, I'll try visualizing the sim's progress on Paraview.

I am the Force and the Force is with me.

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