2.12. FAQs

• Features and Functionalities
  • Where to find simulation LOG file
  • What is the difference between nextnano³ and nextnano++?
  • Can I convert nextnano³ input files into nextnano++ input files?
  • How can I track how much memory is used during the simulations?
  • Can I pass additional command line arguments to the executable?
  • How can I speed up my calculations with respect to CPU time?
  • Can I take advantage of parallelization of the nextnano software on multi-core CPUs?
  • What boundary conditions are available?
  • What are quasi-Fermi levels
  • I do not understand the $\mathbf{k}\cdot \mathbf{p}$ parameters
  • Can I add new materials to the database?
  • Should I use averaged outputs and boxes?
  • Current in my simulation seems unphysical. How to deal with it?
• Error and Warning Messages
  • Quantum-Current-Poisson fails to converge
  • WARNING: Linear solver residual of ARPACK-INVERSE set too large in multiband quantum solver
  • Error: (nodes number of coordinate 1) != (lines number in file)
  • nextnano++ exit code: -1073741795
  • nextnano++ exit code: -1
  • nextnano++ exit code: 1
  • nextnano++ exit code: 3

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Last update: 25/10/2024