Solver for generalized eigenvalue problem (linear buckling analysis)

Grasshopper Karamba3D
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1

Hello,
I am using Karamba3D to perform a linear buckling analysis.
From reading the manual, I could not figure out what kind of solver is used for solving a generalized eigenvalue problem. (Is the solver subspace method? or Lanczos method?).
I would appreciate it if you could enlighten me.
Thank you.

2

Hello @tKMR ,
Karamba3D uses arpack which is based on the Implicitly Restarted Arnoldi Method.
– Clemens

3

Thank you so much for your quick response.