Issues with eigs

[Manav Bhatia]

Hi, 

   I have a set of matrices, M0 and M1 (attached), obtained from numerical discretization of a beam problem. 

   I am attempting to solve the eigenproblem    M1 x = lambda M0 x . 

   Computing this with the following works fine:

>  m0 = load(‘M0.txt’); m1 = load(‘M1.txt’);

>  eig( m1, m0)

    However, using eigs( m1, m0) throws the following error: 

error: __eigs__: eigs: error -8 in dnaupd

error: called from

    eigs at line 285 column 18

    I am not sure what could be causing this. Any guidance will be appreciated. 

Thanks,

Manav

M0.txt
Description: Text document

M1.txt
Description: Text document