Hello, I am currently isolating the faulty code on the porter Eller.
The issue seems to appear after the call to arpack functions, so it does not look as an arparck issue. Best wishes, Jerome -- Jerome BENOIT | calculus+at-rezozer^dot*net https://qa.debian.org/developer.php?login=calcu...@rezozer.net AE28 AE15 710D FF1D 87E5 A762 3F92 19A6 7F36 C68B