openEMS
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thliebig
openEMS is a free and open-source electromagnetic field solver using the EC-FDTD method.
I just investigated the performance of the current FDTD engine implementation, and I've identified two bottlenecks that are causing unnecessary slowdowns in simulations - at the same time, they're easy...
As stated in the last comment of issue https://github.com/thliebig/openEMS/issues/36, there is still an issue with the setup.m in Linux when both the serial and openmpi versions of hdf5 are installed....
I am building a new operator and engine extension right now (again) that handles large groups of mesh cells. While trying to speed up the run, I attempted to utilize...
openEMS uses isOctave [here](https://github.com/thliebig/openEMS/blob/master/TESTSUITE/run_testsuite.m#L10) but octave-8.3.0 doesn't provide it. info/octave.info-9 provides an example implementation of such function: ``` Example: %% %% Return: true if the environment is Octave. %% function...
At the end of ```Engine_Ext_Mur_ABC::Engine_Ext_Mur_ABC``` the number of threads is set to 1 ```cpp SetNumberOfThreads(1); ``` https://github.com/thliebig/openEMS/blob/782a7381bf8fb7e2100fa1358f076a1085d21bdd/FDTD/extensions/engine_ext_mur_abc.cpp#L26C1-L62C2 I am not sure if this overwritten somewhere in the code, or this...
Recently some developers are interested in exploring different ways to speedup the FDTD engine, examples include my #100 proposal and #105 patch, and @MircoController's experimental CUDA kernel at https://github.com/thliebig/openEMS-Project/discussions/36. To...
Hello, I tried to use OpenEMS to simulate the far-field radiation of a metal plate. Following the RCS_Sphere tutorial, I invoked `CreateNF2FFBox` to define the dump planes and `CalcNF2FF `...
For openEMS users, it would be insightful to know how different hardware and software configurations (CPU, memory, multi-threading, MPI clustering) affect simulation speed via a set of standard tests. However,...
Using an older Octave script on newer "i7" computer with Ubuntu 20.x. Followed installation instructions. With minor updates, simulation finishes (adaptive to available processors -- nice!!) Error output from nf2ff...
