> KaiGai Kohei:
> >It seems to me you are a little bit optimistic.
> >Unlike CPU code, GPU-Sorting logic has to reference device memory space,
> >so all the data to be compared needs to be transferred to GPU devices.
> >Any pointer on host address space is not valid on GPU calculation.
> >Amount of
Hello devs,
Thank you so much for the feedback, to answer to your questions:
Tomas:>So you've created an array of 1M integers, and it's 7x faster on GPU
>compared to pg_qsort(), correct?
No, I meant general sorting, not on pg_qsort()
>Well, it might surprise you, but PostgreSQL almost never sorts
> I think you reference the old branch in my personal repository.
> Could you confirm the repository URL? Below is the latest.
> https://github.com/pg-strom/devel
>
Sorry, it is not a problem of pg-strom repository.
Please use the "custom_join" branch of the tree below:
https://github.com/kaig
> > Could you please elaborate more why to choose CUDA, a nvidia-only
> > technology, rather than OpenCL, supported by much wider range of
> > companies and projects? Why do you consider OpenCL unsuitable?
> >
> > Not that CUDA is bad - it certainly works better in some scenarios, but
> > this is a
hitesh ramani wrote:
> > You mention that you ran into issues with PG Strom. What issues?
>
> While I was trying to compile, I ran into the error "src/main.c:27:29: fatal
> error: utils/ruleutils.h: No such file or directory", when I did make to the
> branch of Postgres suggested in the descri
On 03/19/15 21:41, hitesh ramani wrote:
Hello Tomas,
> Could you please elaborate more why to choose CUDA, a nvidia-only
> technology, rather than OpenCL, supported by much wider range of
> companies and projects? Why do you consider OpenCL unsuitable?
>
> Not that CUDA is bad - it certa
Hello Tomas,
> Could you please elaborate more why to choose CUDA, a nvidia-only
> technology, rather than OpenCL, supported by much wider range of
> companies and projects? Why do you consider OpenCL unsuitable?
>
> Not that CUDA is bad - it certainly works better in some scenarios, but
> this i
Hi Hitesh,
On 18.3.2015 21:11, hitesh ramani wrote:
> Hello devs,
>
> As stated earlier I was thinking to propose the integration of
> Postgres and CUDA for faster execution of order by queries thru
> optimizing the sorting code and sorting it with CUDA. I saw and tried
> to run PG Strom and ran
Hello devs,
As stated earlier I was thinking to propose the integration of Postgres and
CUDA for faster execution of order by queries thru optimizing the sorting code
and sorting it with CUDA. I saw and tried to run PG Strom and ran into issues.
Moreover, PG Strom is implemented in OpenCL, not C
