[Top][All Lists]

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

[Octave-bug-tracker] [bug #32967] Slow norm in Octave 3.4.0 (Mac?)

From: Rik
Subject: [Octave-bug-tracker] [bug #32967] Slow norm in Octave 3.4.0 (Mac?)
Date: Thu, 31 Mar 2011 22:06:45 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110323 Ubuntu/10.04 (lucid) Firefox/3.6.16

Update of bug #32967 (project octave):

                  Status:                    None => Works For Me           


Follow-up Comment #1:

I can't reproduce this on a Linux machine running 3.2.3 and 3.4.0.  For both
versions the timing is within 5% of the other and the difference between norm
and sqrt_sum approaches is about 20%.

The magnitude of the changes you are seeing is more likely due to differences
in compilation options (-O1, -O2, or -O3) and potentially which BLAS is being
linked in.  I think you need to take this issue to the packagers of Octave on
Mac or build it yourself from source.  The file README.MacOS has been
completely rewritten for 3.4 and it seems that more people are having success
now even from source.


Reply to this item at:


  Message sent via/by Savannah

reply via email to

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