[Wien] ifort (ifc) 8.0 and mkl 6.1

[Veerle Vanhoof]

Dear Prof. Blaha,

We did use mkl6.1, but I also tested the benchmark case with mkl7.0 and
ifc7.1. Both give 270s for the benchmark.
Is there maybe someone who already succeeded in reproducing the 228s on a
3.2 GHz P4, 512kB L2 with 400MHz without using ifort8.0?

Thank you!

Veerle Vanhoof

----- Original Message ----- 
From: "Peter Blaha" <pblaha at zeus.theochem.tuwien.ac.at>
To: <wien at zeus.theochem.tuwien.ac.at>
Sent: Wednesday, June 09, 2004 2:55 PM
Subject: Re: [Wien] ifort (ifc) 8.0 and mkl 6.1


> > I have some problems with compiling wien2k with ifort8.0.
> > We use a 3.2 GHz P4, 512kB L2 with 400MHz. Compiling with ifc7.1 and
mkl6.1
> > works fine, but the time we reach for the benchmark is 270s, while 228s
> > should be possible with ifort8.0 instead of ifc7.1.
>
> I doubt that the differences in speed are due to the compiler. Most likely
> they come from the mkl library. Are you sure you use mkl 6.1 ?
> There is quite a difference between those two libraries (the newer mkl
> should be as good as the "gotolib".
>
> I don't like (use) ifort8.0
>
>
>                                       P.Blaha
> --------------------------------------------------------------------------
> Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
> Phone: +43-1-58801-15671             FAX: +43-1-58801-15698
> Email: blaha at theochem.tuwien.ac.at    WWW:
http://info.tuwien.ac.at/theochem/
> --------------------------------------------------------------------------
>
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