Re: [HACKERS] Queries runs slow on GPU with PG-Strom

> -Original Message- > From: pgsql-hackers-ow...@postgresql.org > [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Josh Berkus > Sent: Thursday, July 23, 2015 2:49 AM > To: YANG; pgsql-hackers@postgresql.org; KaiGai Kohei > Subject: Re: [HACKERS] Queries runs s

Re: [HACKERS] Queries runs slow on GPU with PG-Strom

ce type? Thanks, -- NEC Business Creation Division / PG-Strom Project KaiGai Kohei > -Original Message- > From: pgsql-hackers-ow...@postgresql.org > [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of YANG > Sent: Thursday, July 23, 2015 12:16 AM > To: pgsql-hackers@p

Re: [HACKERS] Queries runs slow on GPU with PG-Strom

On 07/22/2015 08:16 AM, YANG wrote: > > Hello, > > I've performed some tests on pg_strom according to the wiki. But it seems that > queries run slower on GPU than CPU. Can someone shed a light on what's wrong > with my settings. My setup was Quadro K620 + CUDA 7.0 (For Ubuntu 14.10) + > Ubuntu 15

[HACKERS] Queries runs slow on GPU with PG-Strom

Hello, I've performed some tests on pg_strom according to the wiki. But it seems that queries run slower on GPU than CPU. Can someone shed a light on what's wrong with my settings. My setup was Quadro K620 + CUDA 7.0 (For Ubuntu 14.10) + Ubuntu 15.04. And the results was with pg_strom ==