System requirements for 3D FDTD

- December 16, 2021 at 8:01 am
  
  buchinskii.av
  Subscriber
  
  Hello everebody! I need some help choosing a computer for 3D FDTD. Reuired to calculate S matrix for directional coupler. Typical sizes of the simulation 500mkm * 100mkm * 4 mkm. Source - 1.552 - 1.553 mkm. In the future, I will have to simulate more complex geometry. Sufficient budget, offer any solutions. Thank you very much!
- December 17, 2021 at 5:04 am
  
  Lito
  Ansys Employee
  
  Note that Lumerical does not utilize GPU for computations or running simulations. The total memory bandwidth of the machine is important. This is computed as ((memory speed in MHz)*(# memory channels)*(8 bytes)/1000) GB/s. A multiprocessor machine with several memory channels would be faster compared to a single processor machine with fewer memory channels. Fill all memory slots on the motherboard with RAM modules. Also, check the CPU/processor specs you will be using. Server processors support more memory channels compared to desktop processors. See this article for details.
- December 17, 2021 at 7:11 am
  
  buchinskii.av
  Subscriber
  
  Thank you very much!
- December 17, 2021 at 7:50 am
  
  Lito
  Ansys Employee
  
  ,You are welcome.