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Re: ITSOL interface


From: Kai Torben Ohlhus
Subject: Re: ITSOL interface
Date: Sat, 22 Jun 2013 17:52:28 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130510 Thunderbird/17.0.6

On 06/21/2013 06:08 PM, c. wrote:

On 21 Jun 2013, at 16:15, Nir Krakauer <address@hidden> wrote:

Thanks for the update, Kai!

I don't see code for incomplete Cholesky factorization in ITSOL -- it
may be a good idea to ask Ruipeng and Yousef if have ideas on
implementing this, as well as with the other questions that have some
up; also, maybe some of theOctConf attendees will be helpful.

Have a good weekend,

Nir

According to The Book [1] section 10.4.5, ILUS should yield the incomplete 
Cholesky factor for the symmetric case.

c.

[1] http://www-users.cs.umn.edu/~saad/IterMethBook_2ndEd.pdf



Hi Nir,

On the symmetric case (ichol) I want to work on after the midterm. First I want to concentrate on the other ILUs included into ITSOL and complex decomposition versions.

As far as I figured out, there was no implementation of ILUS from Saad's book in ITSOL. But yes, it's a very good starting point for the ichols (haven't considered that ILUS is the ichol case, thanks for this idea c.).

I have posted how I use ITSOL on my system and wish to be included to the debian packages, but I still haven't seen any progress.
http://siko1056-gsoc.blogspot.de/2013/06/getting-itsol-to-work.html

Best wishes,

Kai


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