Re: CUDA Sorting - Mailing list pgsql-hackers

From Cédric Villemain
Subject Re: CUDA Sorting
Date
Msg-id CAF6yO=1Td0tF4F0H+vT0_FbJnqowpaK6wPRYbpVOpE=ohKi2bg@mail.gmail.com
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In response to Re: CUDA Sorting  (Greg Smith <greg@2ndQuadrant.com>)
List pgsql-hackers
2011/9/19 Greg Smith <greg@2ndquadrant.com>:
> On 09/19/2011 10:53 AM, Thom Brown wrote:
>>
>> But couldn't that also be seen as a chicken/egg situation?
>
>
> The chicken/egg problem here is a bit deeper than just "no one offers GPUs
> because no one wants them" on server systems.  One of the reasons there
> aren't more GPUs in typical database server configurations is that you're
> already filling up some number of the full size slots, and correspondingly
> the bandwidth available to cards, with disk controllers.  It doesn't help
> that many server class motherboards don't even have a x16 PCI-e slot on
> them, which is what most GPUs as delivered on regular consumer video cards
> are optimized for.
>

Sandy bridge and ivy bridge intel series are CPU/GPU. I don't know how
using the GPU affect the CPU part but it might be interesting to
explore...


--
Cédric Villemain +33 (0)6 20 30 22 52
http://2ndQuadrant.fr/
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