Some 3rd party libraries do some multi-threading like the CAD kernel OCC for boolean operations or the tessellation to create a display mesh from the model. The Eigen3 library which is heavily used for the Sketcher also supports multi-threading but don't know if it's activated there.This all makes sense, as the computation required by the solver on a sketch-by-sketch basis is considerably reduced, but I'm still a little confused as to why all 12 cores were being locked on a (largely) single-threaded application.
100% Multi-Core Utilisation
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Re: 100% Multi-Core Utilisation
Re: 100% Multi-Core Utilisation
Hi @Wernerwmayer wrote: ↑Fri Jun 28, 2019 8:42 am Some 3rd party libraries do some multi-threading like the CAD kernel OCC for boolean operations or the tessellation to create a display mesh from the model. The Eigen3 library which is heavily used for the Sketcher also supports multi-threading but don't know if it's activated there.
I switched my home pc to Linux and I noticed that FC mainly acts as single thread also when loading STEP files or doing Boolean operations...
Edit:
I would like to help in debugging this to allow multi-threading also on linux, like it acts on windows...
Please let me know if I can provide help files/scripts to test multi-threading.
Maurice
Last edited by easyw-fc on Fri Jun 28, 2019 11:54 am, edited 1 time in total.
Re: 100% Multi-Core Utilisation
MultithreadingSome 3rd party libraries do some multi-threading like the CAD kernel OCC for boolean operations or the tessellation to create a display mesh from the model. The Eigen3 library which is heavily used for the Sketcher also supports multi-threading but don't know if it's activated there.This all makes sense, as the computation required by the solver on a sketch-by-sketch basis is considerably reduced, but I'm still a little confused as to why all 12 cores were being locked on a (largely) single-threaded application.
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Re: 100% Multi-Core Utilisation
So, far the only functions that support multi-threading I know of are boolean operations, tessellation and the shape checker. No idea which other algorithms also support multi-threading.
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TheMarkster
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Re: 100% Multi-Core Utilisation
easyw-fc wrote: ↑Fri Jun 28, 2019 9:26 amHi @Wernerwmayer wrote: ↑Fri Jun 28, 2019 8:42 am Some 3rd party libraries do some multi-threading like the CAD kernel OCC for boolean operations or the tessellation to create a display mesh from the model. The Eigen3 library which is heavily used for the Sketcher also supports multi-threading but don't know if it's activated there.
I switched my home pc to Linux and I noticed that FC mainly acts as single thread also when loading STEP files or doing Boolean operations...
Edit:
I would like to help in debugging this to allow multi-threading also on linux, like it acts on windows...
Please let me know if I can provide help files/scripts to test multi-threading.
Maurice
Found this on stack exchange:
In linux the terminal command
export OMP_NUM_THREADS=<num>
will do the trick. FC does a lot more than modelling: gmsh, FEM, etc.
https://unix.stackexchange.com/question ... iple-cores