Kraus Philipp wrote:

[snip]

 linalg::geev( 'N', 'V', l_matrix, l_eigval,  l_tmp1,l_tmp2,

l_eigvec, linalg::optimal_workspace() );

[snip]

I'm a bit confused. Is it gesv (topic of this thread) or geev (code example)
which is causing the trouble?