[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Octave-bug-tracker] [bug #41624] pcg fails to converge with preconditio

From: anonymous
Subject: [Octave-bug-tracker] [bug #41624] pcg fails to converge with preconditioner luinc
Date: Mon, 17 Feb 2014 22:50:43 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36

Follow-up Comment #2, bug #41624 (project octave):

I tested both scripts with Matlab R2012b on Linux and it succeeds after one
iteration with luinc and fails even with 15000 iterations when using ilu like
you suggest.
This seems very strange considering that in theory (without rounding errors)
cg should converge to the EXACT solution after at most 1599 steps.


Reply to this item at:


  Message sent via/by Savannah

reply via email to

[Prev in Thread] Current Thread [Next in Thread]