Looks like the Asus P9X79-E WS is for you then Scott! :) Haven't seen many
(if any!) boards with that anount of bandwidth so far.
br,
g
On 22 June 2013 19:31, Scott Le Grand <varelse2005.gmail.com> wrote:
> It may be overkill now but I'm planning to revisit the Multi GPU code in
> the near future and that's why I need a motherboard that can really take
> advantage of it.
> On Jun 22, 2013 10:12 AM, "ET" <sketchfoot.gmail.com> wrote:
>
> > Hi,
> >
> > Thanks v much for you specs Divi. :) I've been debating with myself as my
> > board as it looks good and has a very nice spec. From what I've read, the
> > only problems with it is the higher than average power draw.
> >
> > .Scott. I believe the board runs in x8/x8/x8/x8 for a 4 GPU config - so
> > effectively PCI2 2.0 x16 rate. Would this present any problems, if you
> > were running the serial GPU code, From what I read on the AMBER GPU
> > hardware page, this is more important for the parallel GPU code? Though,
> I
> > imagine having 4x serial ruins going simultaneously would also tax the
> GPU
> > to CPU interface, though how much I'm not sure.
> >
> > Apparently, if you are going intel, you can only acheive PCIe 3.0 using
> at
> > least a Sandy Bridge-E or ivy bridge CPU in a socket 155. Please correct
> me
> > if I have understood this incorrectly though.
> >
> > http://www.enthusiastpc.net/articles/00003/3.aspx
> >
> >
> > A socket 2011 proposition would be the Asus P9X79-E WES which has 2x PLX
> > PEX 8747 chips so can run at x16/x16/x16/x16 with four GPUs
> >
> > https://www.asus.com/Motherboards/P9X79E_WS/#specifications
> >
> > However, I'm unsure whether this is overkill for running 4xGPUs doing
> AMBER
> > serial code.
> >
> > What do you guys think?
> >
> > br,
> > g
> >
> >
> >
> > On 22 June 2013 16:15, Scott Le Grand <varelse2005.gmail.com> wrote:
> >
> > > Does this MB support full p2p at 16x PCIE Gen 3 speeds between all 4
> > GPUs?
> > > On Jun 21, 2013 4:09 PM, "Divi/GMAIL" <dvenkatlu.gmail.com> wrote:
> > >
> > > >
> > > > ET:
> > > > I am using GA-Z77X-UP7 that has PLX chipset and supports 3rd Gen
> > > LGA1155
> > > > socket. Bought together with 2 TITANS sometime in March.
> > > > It has been running pretty stable 24/7 since then. I thought of
> > buying
> > > > two more titans later to fill all four slots. With so much mess
> going
> > on
> > > > with TITANS, I put off that plan until the dust settles. You might
> > want
> > > to
> > > > check new 4th GEN cpus and supporting motherboards as the Hardware
> keep
> > > > changing pretty rapidly these days.
> > > >
> > > > I have i5-processor with 16 GB ram and 256 GB SSD. All four PCI-E
> > > lanes
> > > > are X-16. It also has native X-16 link directly "hardwired" to
> > CPU-lanes
> > > > that will bypass PLX chipset, in case if you run single GPU. This
> might
> > > > reduce a bit of latency but not much. I get 35ns/day on FIX/NVE
> > benchmark
> > > > bypassing PLX chipset, but get about 34ns/day using PLX chipset (on
> > TITAN
> > > > of
> > > > course!!). Not a deal breaker..
> > > >
> > > > Link below:
> > > >
> > > > http://www.gigabyte.com/products/product-page.aspx?pid=4334#ov
> > > >
> > > > HTH
> > > > Divi
> > > >
> > > > -----Original Message-----
> > > > From: ET
> > > > Sent: Thursday, June 20, 2013 8:18 PM
> > > > To: AMBER Mailing List
> > > > Subject: [AMBER] Anyone running machines with Quad GPU setups
> > > >
> > > > Hi all,
> > > >
> > > > I was looking at getting a new mobo to run a quad GPU system. I was
> > > > wondering if anyone has done this. If you could post the model & make
> > of:
> > > >
> > > > 1) motherboard
> > > > 2) CPU
> > > > 3) RAM
> > > > 4) Case
> > > > 5) The aggregate estimate of ns in simulation you have run on your
> > setup
> > > > without issue,
> > > >
> > > > I would be much obliged! :)
> > > >
> > > > br,
> > > > g
> > > > _______________________________________________
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Received on Sat Jun 22 2013 - 13:00:02 PDT
