From: Yuqi Liu (liuyuqi_at_hotmail.com)
Date: Mon Aug 20 2012 - 18:23:00 CDT
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> Date: Mon, 20 Aug 2012 11:41:13 -0400
> Subject: namd-l: GPU workstation build
> From: blake.mertz_at_mail.wvu.edu
> To: namd-l_at_ks.uiuc.edu
>
> Hello,
>
> I'm in the process of putting together a GPU workstation based off of
> a Tyan S8232GM4NR motherboard -- it's a dual-socket AMD G34, with 4
> PCI-e Gen2.0 slots that are spec'd to run at 16x
> (http://tyan.com/product_SKU_spec.aspx?ProductType=MB&pid=696&SKU=600000215).
> My two biggest concerns are:
>
> 1) the bandwidth on my motherboard with respect to the GPUs, and
>
> 2) which commercial Nvidia GPUs I should go with.
>
> From what I can tell by Axel Kohlmeyer's response to Matt Roark's
> inquiry (http://www.ks.uiuc.edu/Research/namd/mailing_list/namd-l.2011-2012/3416.html),
> you have to look out for motherboards with integrated "PCIe bridges",
> which I haven't been able to confirm on the S8232, either in the
> manual or from looking online. Does anyone have experience using this
> board for namd?
>
> Also, I noticed Francesco Pietra has done some testing with GTX 680s
> (which is what I happened to initially purchase), but I haven't seen
> much else on namd-l discussing these cards. Has anyone else had a
> chance to compare the 680 performance over the 580s? I've had a hard
> time judging the advantages of the new Kepler architecture over Fermi,
> especially in context of namd performance. Thanks for any help you can
> give.
>
> Blake
>
> --
> Assistant Professor
> C. Eugene Bennett Department of Chemistry
> West Virginia University
>
> "Life is not easy for any of us. But what of that? We must have
> perseverance and above all confidence in ourselves. We must believe
> that we are gifted for something and that this thing must be
> attained." Marie Curie
>
> "Start by doing what's necessary; then do what's possible; and
> suddenly you are doing the impossible." St. Francis of Assissi
>
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