Error during a calculation “Insufficient number of resulting eigenvalues!”

When the Lanczos algorithm cannot find the requested number of eigenshapes with a sufficient accuracy, that error message is displayed. To fix it, do one or all of the following:

  • reduce the number of requested eigenvalues in the solver setup

  • reduce the requested precision (solver precision ratio in solver settings) in the solver setup

  • use an alternative method, e.g. subspace iteration