On 05/03/2012, Umut Tabak wrote: > Dear SLEPc team, > > May I kindly ask which LAPACK routines are called in the LAPACK interface of > SLEPc? > > And what kind of checks do you conduct to check if the matrix is symmetric or > not? > > I have some matrices which are not completely symmetric however the > off-diagonal terms are really small(orders: 1e-16) and I used Intel MKL > Lapack routines for my problems. > > But, I could not get the correct eigenvectors, however I can get the correct > eigenvalues on which I am puzzling with. > > Best regards, > Umut
When the problem in known to be symmetric, we symmetrize the matrix and call a symmetric Lapack subroutine such as dsyevr. Jose
