Version 2.2.1 is available upstream. Please consider updating! It seems that version 2.2.1 is available upstream, while the latest version in the Gentoo tree is 2.2.0_p20240704. You think this warning is false? Read more about it here.
The ScaLAPACK (or Scalable LAPACK) library includes a subset of LAPACK routines
redesigned for distributed memory MIMD parallel computers. It is currently
written in a Single-Program-Multiple-Data style using explicit message
passing for interprocessor communication. It assumes matrices are laid out
in a two-dimensional block cyclic decomposition.