| Sparse matrix algorithms [message #28307] |
Wed, 28 November 2001 18:43  |
Ralf Flicker
Messages: 19
Registered: October 2001
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Junior Member |
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It seems the NR implementations of row-indexed sparse storage
mode for sparse matrices that I have in IDL 5.3 only deal with
square matrices, so I'm coding some more general sparse matrix
algorithms. Would anybody advise for or against a particular
implementation of the row-wise storage scheme? There are several
described in, for instance, Pissanetzky 84, one of them being a
generalization of the NR algorithm (I think). Or has somebody
translated the matlab package perhaps? Any input welcome.
cheers
ralf
--
Ralf Flicker
Gemini Observatory http://www.gemini.edu/
670 N. A'Ohoku Pl. Tel : (808) 974-2569
Hilo 96720, HI, USA Fax : (808) 935-9235
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| Re: Sparse matrix algorithms [message #82548 is a reply to message #28307] |
Fri, 14 December 2012 19:28  |
carolinebalden
Messages: 5
Registered: August 2012
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Junior Member |
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On Wednesday, November 28, 2001 7:51:08 PM UTC-7, Ralf Flicker wrote:
> It seems the NR implementations of row-indexed sparse storage
> mode for sparse matrices that I have in IDL 5.3 only deal with
> square matrices, so I'm coding some more general sparse matrix
> algorithms. Would anybody advise for or against a particular
> implementation of the row-wise storage scheme? There are several
> described in, for instance, Pissanetzky 84, one of them being a
> generalization of the NR algorithm (I think). Or has somebody
> translated the matlab package perhaps? Any input welcome.
>
> cheers
> ralf
>
> --
> Ralf Flicker
> Gemini Observatory http://www.gemini.edu/
> 670 N. A'Ohoku Pl. Tel : (808) 974-2569
> Hilo 96720, HI, USA Fax : (808) 935-9235
Hi Ralf and Trouble -
Have either of you ended up coding an NxM sparse algorithm for IDL?
Caroline
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