Calculation speed

My test model takes very long to run: 10*6*4 m box, all plywood surfaces with 25% scattering over all frequencies.

To run the ray-tracing calculation with one point source and one receiver, 10000 rays and 1000 ms cut-off time, it takes pachyderm about 20 minutes on my computer. On the same computer, it takes EASE just a few seconds to run that model.

There has to be something off that I'm missing. Does Pachyderm use all available cores by default or do I have to activate multi-core processing somewhere?

Replies to This Discussion

Permalink Reply by Henning on April 23, 2020 at 11:13pm

anybody?

Permalink Reply by Henning on May 5, 2020 at 1:58pm

I could still not figure this out. Is there a setting that I have to activate for the simulation to run faster? I'm using a 6-core machine with 3 GHz and 16 GB ram and as I said, Ease and also Odeon run similar models much faster. I'm just trying to understand if Pachyderm should provide comparable performance to commercial products to find out if I'm doing something wrong.

Permalink Reply by Ander Perez on May 13, 2021 at 3:15am

Check out the preferences - - >Pachyderm acoustics. There you should See the cores that are being used. Usually it uses all available cores.
Make sure you only use surfaces (no polysurfaces, no surface made out out meshes.). There is a Parameter calles voxel grid. I put it at 22 in order to get faster results. Anyway, EASE and Odeon are generally quicker in solving models.

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