Re: [Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-31 Thread Pauli Virtanen
Thu, 30 Oct 2008 22:19:01 +, Jan-Willem van de Meent wrote: > On Thursday 30 October 2008 18:41:51 Charles R Harris wrote: >> On Thu, Oct 30, 2008 at 5:19 AM, Jan-Willem van de Meent < >> >> [EMAIL PROTECTED]> wrote: >> > Dear all, >> > >> > This is my first post to this list. I am having perf

Re: [Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-30 Thread Jan-Willem van de Meent
On Thursday 30 October 2008 22:32:22 Robert Kern wrote: > On Thu, Oct 30, 2008 at 17:19, Jan-Willem van de Meent > <[EMAIL PROTECTED]> wrote: > > I posted a full build log earlier today, but I think it is still awaiting > > approval of moderators because of file size limitations. > > There are no m

Re: [Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-30 Thread Robert Kern
On Thu, Oct 30, 2008 at 17:19, Jan-Willem van de Meent <[EMAIL PROTECTED]> wrote: > I posted a full build log earlier today, but I think it is still awaiting > approval of moderators because of file size limitations. There are no moderators to approve it. The file size limitation is just a limitat

Re: [Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-30 Thread Jan-Willem van de Meent
On Thursday 30 October 2008 18:41:51 Charles R Harris wrote: > On Thu, Oct 30, 2008 at 5:19 AM, Jan-Willem van de Meent < > > [EMAIL PROTECTED]> wrote: > > Dear all, > > > > This is my first post to this list. I am having perfomance issues with > > with numpy/atlas. Doing dot(a,a) for a 2000x2000 m

Re: [Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-30 Thread Charles R Harris
On Thu, Oct 30, 2008 at 5:19 AM, Jan-Willem van de Meent < [EMAIL PROTECTED]> wrote: > Dear all, > > This is my first post to this list. I am having perfomance issues with with > numpy/atlas. Doing dot(a,a) for a 2000x2000 matrix takes about 1m40s, even > though numpy is appears to link to my atl

[Numpy-discussion] Numpy matrix multiplication slow even though ATLAS linked

2008-10-30 Thread Jan-Willem van de Meent
Dear all, This is my first post to this list. I am having perfomance issues with with numpy/atlas. Doing dot(a,a) for a 2000x2000 matrix takes about 1m40s, even though numpy is appears to link to my atlas libraries: I did a quick benchmark by running the following script: #! /usr/bin/env