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Re: Re: successive over relaxation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg38816] Re: [mg38802] Re: successive over relaxation
  • From: Selwyn Hollis <selwynh at earthlink.net>
  • Date: Tue, 14 Jan 2003 06:11:31 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Jens,

If one had a good SOR routine, it could be used as the basis for a 
Multigrid solver that may well outperform SparseLinearSolve on very 
large problems. It would be interesting to see...

Cheers,
Selwyn


On Monday, January 13, 2003, at 04:11  AM, Jens-Peer Kuska wrote:

> Hi,
>
> and
>
> Developer`SparseLinearSolve[]
>
> does not a better job than any SOR ??
>
> Regards
>   Jens
>
> Selwyn Hollis wrote:
>>
>> Mike,
>>
>> I doubt you'll find what you're looking for. I recently spent some 
>> time
>> trying to concoct an efficient Gauss-Seidel-SOR program in Mathematica
>> and left it before getting anything I was happy with. There are 
>> inherent
>> difficulties, I think. However, I believe it's an very interesting
>> problem to find the "best" way of implementing SOR in Mathematica.
>>
>> ----
>> Selwyn Hollis
>>
>> Mike wrote:
>>> Does anyone know of any sources of examples of successive over 
>>> relaxation
>>> method using mathematica?
>>>
>>> I came across a link on mathsource but the notebook actually links 
>>> to ITPACK
>>> method. I was interested in a full implementation within mathematica.
>>>
>>>
>>> Thanks
>>>
>>> Mike
>>>
>>>
>>>
>



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