Re: New procedure bicgstab

[R!]

Hi,

I understand that good preconditioning is very important for procedure like
bicgstab and cgs which I wrote, so maybe I can now try to write ILU
procedure for Octave if you find it useful.

But I'm also interested in your opinion about bicgstab now.

Radek Salac 


David Bateman-2 wrote:
> 
> Soren Hauberg wrote:
>> Hi,
>>   I don't know much about optimization, so I'm just asking out of
>> ignorance, but what is the point of this function compared to the normal
>> division operators in Octave?
>>   
>>
> It is iterative, and if you don't care about a great convergence and/or 
> you have a good preconditioner this might be faster than the division 
> operator... Depends on your problem of course.. However, bicgstab is 
> nice to have, but without a good preconditioning routine like "ilu" in 
> Octave its use will be limited....
> 
> D.
> 
> -- 
> David Bateman                                address@hidden
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> 

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