Re: CUDA Sorting

2011/9/19 Nulik Nol <nuliknol@gmail.com>:
> On Mon, Sep 19, 2011 at 7:11 AM, Vitor Reus <vitor.reus@gmail.com> wrote:
> I recommend doing some bandwidth benchmark test before you start coding.

I already did some benchmarks with GPU sorting (not in pgsql), and
measured total sort times, copy bandwidth and energy usage, and got
some exciting results:

I got around 1GB/s bandwidth with a GeForce GT 430 on a MS-9803 MB.
The power increase ratio was 2.75 times, In a Core 2 Duo T8300, adding
the GT 430: http://tinyurl.com/6h7cgv2
The sorting time performance increases when you have more data, but in
average is 7.8 times faster than CPU: http://tinyurl.com/6c95dc2