k-Wave

1. nicoq
   

   Member
   Joined: Sep '15
   Posts: 1

   Hello,

   I've succesfully used k-wave with the C++ binary for complex 3D models in previous projects.

   However, for a very high frequency project (> 200 MHz), I've to come back to a 2D model since the grid size for my problem is at least 4096 x 8192 (in fact I should go up to 8192 x 16384) .

   In order to reduce the computation time, I'like to use the C++ (or CUDA) implementation of k-wave, but this one is only available for 3D computation.

   So, I'd like to know:
   - if a 2D extension of the C++ (or CUDA) binaries is available ?
   - if not, is it scheduled for a future release ?
   - Otherwise, should I use a 3D grid with a grid dimension of 1 wrt to z ?
   - In this case how to remove the PML in the 3rd dimension ?
   - Or what would be the minimal grid dimension to use ?

   Thanks a lot for your amazing work !

   Nicolas

   Posted 6 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,640

   Hi Nicolas,

   A 2D extension is not currently available, and is not something we're currently working on. However, we do intend to write kspaceFirstOrder2DG and kspaceFirstOrder2DC functions that call the 3D code with Nz = 1 at some point. You could try this now (by calling kspaceFirstOrder3DG with Nz = 1), but I suspect some things might break. In any case, to turn off the z-direction PML, use'PMLAlpha', [2, 2, 0].

   Hope that helps,

   Brad.

   Posted 6 years ago #

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