LAPACK/ScaLAPACK Development

Using ZGEEV, I get the folowing error message :

On entry to ZGEBAL parameter number 3 had an illegal value

Obviously ZGEEV uses ZGEBAL. ZGEBAL parameter number 3 is the input matrix.

In my program I have to get the eigenvalues of a complex(8) hamiltonian matrix.
The issue disapears when I change some terms in my matrix.

Does that mean that my matrix is not diagonalizable, or is it another technical problem?

PS : I'm french, so excuse my language.

If you look in the source for ZGEBAL, you see that it returns -3 when the input matrix has NaNs in it. So when you changed the entries of the matrix, you must have made the NaNs go away.

Thank you very much, it was so simple ^^