Re: [eigen] Updating the Benchmarks

[Milian Wolff <mail@xxxxxxxxxx>]

On 01/20/11 14:56, Benoit Jacob wrote:
> 2011/1/20 Milian Wolff<mail@xxxxxxxxxx>:
> > Hey all!
> >
> > Finally I have the change to try out Eigen. I'm going to write a Bachelor
> > thesis (I'm studying physics) on pulse EPR simulations. I want to use Eigen
> > for that. To get my feet wet, I'd like to update the benchmarks first, which
> > should also be useful for you all.
> >
> > I think I'll be able to get hold of an i7 machine with 8 or 4gigs of ram,
> > running squeeze 64bit. I can easily install the open libs they have there,
> > but I'm not sure whether I should try to get hold of the unfree libs for
> > comparison. Most notably:
> >
> > # INTEL_MKL: seems to be commercial? Or can I use the "try" version?
>
> Commercial, but yes you can use a free-of-charge version.

I can only find a " Try it for 30 days-free " version of the MKL. Am I 
missing something?

https://registrationcenter.intel.com/RegCenter/EvalForm.aspx?productid=1460

> > # ACML: Closed-source but seems to be free for download?
>
> I think the same applies to it (not 100% sure)

Here I'm pretty sure that it's free to use:
http://developer.amd.com/cpu/Libraries/acml/downloads/pages/default.aspx#downloads

The question is: what version should be downloaded ;-) Probably 
gfortran-64bit-int64 for an intel processor, right?

> > # GOTO: no idea where I can get this?
>
> Google for Goto BLAS, you'll find a university website, you have to
> click on some kind of agreement before you can download, AFAICR.

right, now I finally found it, thanks.

> None of the above is free-as-in-FSF, but ATLAS is (afaik).

Yes, and cmake also checked for blitz and gmm++, both of with are free 
as well, hence I can include them in the benchmarking without problems.

> > If you have any idea, then I could provide you with the required benchmarks.
> > I'll also increase the size of the matrix, since my problem will have a
> > 9000x9000 matrix approximately. I'm planning to use the Eigen 3 branch.
> > Which leads me to my next question: I am not able to install the benchmarks
> > there:
> >
> > http://paste.kde.org/2822/
> >
> > that is the "default" branch in mercurial, eigen2 installed from squeeze
> > repo, version is 2.0.15-1. Any help on this?
>
> The default branch in mercurial is eigen3.

right, which is what I want to benchmark.

> This is 2011, so do not bother benchmarking eigen2 anymore :)

I would argue that including eigen2 in the benchmark is very important, 
for marketing alone. It should show you guys how much better eigen3 
performs, are you not interested in this?

> Eigen3 benchmarking is very welcome; unfortunately I think that only
> Gael knows the black magic of running our BTL benchmarks with all the
> back-ends. It would be great to get a wiki page on this topic.

There is a README which seems to be straight forward. But since I cannot 
compile it I cannot continue with that README ;-)

So any help on the compilation errors would be welcome.

Bye

--
Milian Wolff
http://milianw.de