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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> >
> >
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Received on Sat Jun 22 2013 - 10:30:03 PDT
