[Wien] AMD or intel CPU

[Peter Blaha]

Use the Linux version which you "know" best, so that you are able to 
configure your Linux properly and install all necessary tools.

Am 28.06.2012 10:20, schrieb ali ghafari:
> Dear Prof. Blaha
> Thank you very much for your professional advice. for optimize system
> does it matter which operating system we use or not? for example Debian
> is better or Ubuntu?
> Best Regards
> Ali
>
> ------------------------------------------------------------------------
> *From:* Peter Blaha <pblaha at theochem.tuwien.ac.at>
> *To:* A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
> *Sent:* Thursday, June 28, 2012 8:44 AM
> *Subject:* Re: [Wien] AMD or intel CPU
>
> Intel I7 cpus are SIGNIFICANTLY faster than AMD.
>
> Make sure it is an I7 (not I5,..), because they have the fastest memory
> access and run best with Lapack/Blas (because of the mkl-library) which
> is very important.
>
> At the moment Intel offers:
>
> i7-3820  300$, 130W, 4 cores, 3.6/3.8GHz, 10MB cache, 4 memory channels
>                                                  and 51.2 GB/s bandwidth
> i7-3930K 600$, 130W, 6 cores, 3.2/3.8    12        ,  as above
>
> i7-3770K 340$,  77W, 4 cores, 3.5/3.9  ,  8MB      , 2 memory channels
>                                                    !!!!  25.6 GB/s !!!
>
> So I would go clearly for a i7-3820  (or if you have more money) for a
> i7-3930K processor.
>
> The last one (3770K) is produced in the newest technology (power
> saving), but I guess its memory bus is much slower!
>
> Am 27.06.2012 13:53, schrieb ali ghafari:
>  > Dear Profs. Blaha and users
>  > We want to buy new computer for Wien2k calculation. The question is
>  > which kind of platforms (AMD or inlet) are suitable for Wien2k package?
>  > Best Regards
>  > Ali
>  >
>  >
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>  >
>
> -- Peter Blaha
> Inst.Materials Chemistry
> TU Vienna
> Getreidemarkt 9
> A-1060 Vienna
> Austria
> +43-1-5880115671
>
>
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>
>
>
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-- 
Peter Blaha
Inst.Materials Chemistry
TU Vienna
Getreidemarkt 9
A-1060 Vienna
Austria
+43-1-5880115671