ljchang94 at kaist.ac.kr
Wed Jul 15 01:52:03 EDT 2015
Dear Trilinos developers and users,
I'm using Anasazi package to diagonalize matrices with Epetra_CrsMatrix.(Eigensolver is BlockDavidson)
My problem is that diagonalization sometimes not converged.
The characteristics of the matrix that i want to diagonalize are
1. diagonal dominent
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 ?
or any comment to set parameters such as numblocks, maxiteration, number of blocks and etc?
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