Yes, that's pretty much the situation. I'm mostly looking for someone
who has satisfactory performance with their Core i7 so I can get some
comparison information and figure out if I need to disable
hyperthreading or compile atlas with different flags or what.
Are the Ubuntu 10.10 atlas packages
I'm wondering if anyone here has successfully built numpy with ATLAS
and a Core i7 CPU on Ubuntu 10.04. If so, I could really use your
help. I've been trying since August (see my earlier messages to this
list) to get numpy running at full speed on my machine with no luck.
The Ubuntu packages don't
--with-netlib-lapack is indeed no longer valid.
INSTALL.txt includes a warning that INSTALL.txt is out of date, you should
refer to doc/atlas_install.pdf instead.
The new option is --with-netlib-lapack-tarfile
I successfully built 3.9.25 with this option a while ago, but haven't been
able to get
, Ian Goodfellow wrote:
--with-netlib-lapack is indeed no longer valid.
INSTALL.txt includes a warning that INSTALL.txt is out of date, you
should
refer to doc/atlas_install.pdf instead.
Ah, I read too quickly and missed that. Thanks.
The new option is --with-netlib-lapack
To do a standard installation, run
sudo python setup.py install
from inside the numpy directory
Then your import should work elsewhere.
By the way, import * can cause difficulties when you're working with
several different files. For example, if you have a function called 'save'
somewhere that
The reasoning behind this is that == returns an array that specifies
whether each element of the two arrays is equal. It's only defined if
the arrays are the same shape (or maybe if they can be broadcasted to
the same shape).
The correct way to check if an array is empty is to inspect its
If the arrays are the same size or can be broadcasted to the same
size, it returns true or false on an elementwise basis.
If the arrays are not the same size and can't be broadcasted to the
same size, it returns False, which was a surprise to me too.
import numpy as N
: 0.0131
On Fri, Oct 8, 2010 at 12:35 PM, Bruce Southey bsout...@gmail.com wrote:
On 10/08/2010 10:58 AM, Ian Goodfellow wrote:
Here's the output on my atlas library:
file -L /usr/local/atlas/lib/libatlas.so
/usr/local/atlas/lib/libatlas.so: ELF 64-bit LSB shared object, x86-64,
version 1 (SYSV
