Re: [ublas] eigenvalue solvers ... again

From: Karl Meerbergen (Karl.Meerbergen_at_[hidden])
Date: 2007-10-19 02:38:09

I don't. Actually, a bindings to BLZPACK would come in handy. Note that 
arpack is not designed for buckling and frequency analysis unless the 
number of wanted eigenvalues is small. It does not do the Sturm sequence 
test either. Blzpack also uses reverse communication as arpack. I have 
some ideas to make nice bindings to arpack, but no time at the moment ...

Karl

Riccardo Rossi wrote:

>i was interested in sparse... :-(
>
>do you have by chance any example using either UMFPACK or Arpack?
>
>thanks in advance
>Riccardo
>
>
>
>Nuno Sucena Almeida wrote:
>  
>
>>	Dense or sparse matrices? For dense I think you can use Lapack with some 
>>bindings laying around somewhere, if you can't find them I think I have them. 	
>>	For sparse and with Arpack it's more trickier because of the callback 
>>mechanism, so what I use is umfpack along the way too.
>>
>>								Nuno
>>
>>On Tuesday 16 October 2007, Riccardo Rossi wrote:
>>  
>>    
>>
>>>"native ublas" implementation of Lanczos or of some other eigenvalue
>>>solver?
>>>I am interested in generalized eigenvalue solvers to be used in buckling
>>>and frequency analysis
>>>    
>>>      
>>>
>>  
>>    
>>
>
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