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addVertex function is slow compared to solve function [FEA, FEM, Finite element, PDE, structural, static-solid]

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Fritz
Fritz 2024-5-4
Hello
During my work with MATLAB's Partial Differential Equation Toolbox to perform 3D structural, static-solid FEA I recognized that the addVertex function is very slow.
In my models, adding the vertices for the boundary conditions takes much longer then solving the actual model, e.g. sometimes 4 times longer.
Find attached an example. In this case the differnence is not that big but adding the vertices still takes longer then solving, e.g. on my computer:
Adding fixture constraint. Completed after 0.43 minutes.
Solving FEA. Completed after 0.29 minutes.
In this example the fixture is delimited only by a plane. Usally in my models the situation is more complex. That's why many vertices must be added to define the boundary conditions.
Are there any options to speed this up, e.g. parallel computing?
Kind regards
Fritz

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