openEMS packages are available from Science repository and main Tumbleweed repository.
openEMS is a free and open electromagnetic field solver using the FDTD method. Matlab or Octave are used as an easy and flexible scripting interface.
- Fully 3D Cartesian and cylindrical coordinates graded mesh.
- Multi-threading, SIMD (SSE) and MPI support for high speed FDTD.
See official site to get more information – openems.de.