Dear Freddie,

I managed to build and link the ATLAS library. I've run some tests but it 
gives me lower performance than I expected: OpenBLAS (single-threaded) 
outperforms ATLAS by 20-30%.

I know that the peformance of BLAS is platform-dependent and that your good 
experience with ATLAS is not directly extrapolated to my case. However I'd 
still like to give it a chance. As you very well indicated, a good 
performance on the BLAS library used is essential.

Would it be possible to have a reference of the times per iteration using 
PyFR and different BLAS libraries, single proc, for a given case you run in 
the past? Perhaps you have this information reported at some moment in the 
past?

On the other hand, Would it be possible for you to provide with the 
compiled ATLAS library *.so? I could test it myself, of course as long as 
we're using similar LINUX OS.

Many thanks in advance.

Best regards,
Antonio





On Saturday, October 24, 2015 at 6:55:15 PM UTC+2, Freddie Witherden wrote:
>
> Hi Antonio, 
>
> On 20/10/15 10:47, Antonio Garcia-Uceda wrote: 
> > I should keep trying with ATLAS then. Did you download yours from the 
> > same source? 
>
> I grabbed the source code off of Sourceforge and then followed the build 
> instructions to generate a shared library. 
>
> Regards, Freddie. 
>

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