Dear Wolfgang, I am trying to calculate the condition number of a Trilinos Block Sparse matrix. Is there an example of that in the documentation that you can point me to?
Thank you, Reza On Sunday, January 31, 2016 at 5:23:31 PM UTC-8 Wolfgang Bangerth wrote: > On 01/31/2016 12:18 PM, Mohammad Sabawi wrote: > > ** > > > > *How to compute the condition number and eigen values of a matrix I use > it in > > my code in deal.II not in Trillions or PETSc? Is there any difference if > is > > it a block or non block matrix?* > > deal.II doesn't currently provide a way to compute eigenvalues of sparse > matrices other than through Trilinos and PETSc/Slepc (unless you're only > interested in the largest/smallest eigenvector, for which you can use the > EigenPower/EigenInverse classes). > > But you could output the matrix in text format and input it into matlab, > for > example, if you just want to experiment a bit. > > Best > W. > > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: [email protected] > www: http://www.math.tamu.edu/~bangerth/ > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/a67abf41-aed4-49a5-9e01-2aa1eb5186b5n%40googlegroups.com.
