Normalization options in slepc

Jose E. Roman jroman at
Tue Jul 28 12:17:56 CDT 2009

On 28/07/2009, Umut Tabak wrote:

> Dear all,
> Is there a normalization selection option in Slepc for eigenvectors,  
> as far as I can see, it normalizes the eigenvectors so that their  
> norm is equal to 1. Can this normalization be customized with  
> respect to B, in a generalized problem context. It is not hard to  
> write a function for this, but I wondered if there is already an  
> option for this.
> Best regards,
> Umut

In symmetric-definite generalized problems, it makes more sense to  
return B-normalized eigenvectors. Some time ago we considered changing  
this but for some reason we didn't. We will change this in the next  
patch (slepc-3.0.0-p5).


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