[Trilinos-Users] trilinos diagonalization

[임재창]

Dear Trilinos developers and users,


I'm using Anasazi package to diagonalize matrices with Epetra_CrsMatrix.(Eigensolver is LOBPCG)

My problem is that diagonalization sometimes not converged.


The characteristics of the matrix  that i want to diagonalize are


1. diagonal dominent


2. symmetry


3. almost 80~90% of entries are zero


4. i want to know a few lowest eigenvalues


are there any options which are efficient for diagonalizing these kinds of matrices?


Best regards,


jaechang lim



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