On 06/13/14 09:16 PM, Greg Keller wrote:
From: "Raphael Verdugo P." <[email protected]
<mailto:[email protected]>>
To: [email protected] <mailto:[email protected]>
Subject: [Beowulf] HPC with CUDA
I need install 5 GPUs(Geforce GTX 780s) in a server and 1 Tesla
Keppler K40 in other.
? Do they have any recommendation for server HP or Dell?
processor? , RAM?
We have considered the easily overlooked Dell T620 for these types of
projects needing a lot of slots and power supplied...
Slots
7 PCIe slots:
Four x16 slots with x16 bandwidth, full-length, full-height
Two x8 slots with x8 bandwidth, full-length, full-height
One x8 slot with x4 bandwidth, full-length, full-height
(http://www.dell.com/us/business/p/poweredge-t620/pd?~ck=anav
<http://www.dell.com/us/business/p/poweredge-t620/pd?%7Eck=anav>)
There are rack mount kits available and you can cram 32 disks in it if
you end up with a craving for local IO at some point. It's marketed
as a "Tower" server so we overlooked it for a year.
Supermicro has a board that provides Eight x16 slots, but I understand
it's wired so that 2 slots are effectively sharing 16 lanes. Let me
know if you find anything more awesome...
Newer Intel CPU can support 1x 32 lanes or 2x 32 lanes? At some point
you'll hit a bottleneck where you can't actually use all the lanes. In
some of the supercomputer designs they are doing a 1GPU to 1CPU ratio. I
think getting the workload balanced across this design would be
challenging and that's hoping all the driver issues have been ironed out.
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