Re: Parallel Sort

Let me introduce one thing we discussed in the developer meeting at
Ottawa. We got a consensus that pluggable exec-node may be useful to
replace a part of exec-node tree with an alternative one being
implemented by extensions; which will allow to run something like
"GpuSort" instead of existing Sort.

http://wiki.postgresql.org/wiki/PgCon_2013_Developer_Meeting#Pluggable_plan.2Fexec_nodes

2013/5/24 james <james(at)mansionfamily(dot)plus(dot)com>:
>> Have you considered GPU-based sorting? I know there's been discussion in
>> the past.
>
> If you use OpenCL, then you can use a CPU driver if there is no GPU, and
> that can allow you to leverage all the CPU cores without having to do the
> multi-thread stuff in the backend.
>
> While the compilation of a specific kernel can be quite expensive, it also
> has the effect of a JIT compiler in terms of system independence.
>
>
>
>
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--
KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp>