topic Hi Michael, in OpenCL* for CPU

Musemage OpenCL driver degradation

Michael_Schmidt — Sat, 12 Jan 2013 16:26:04 GMT

I'm using an i5-3570K with onboard HD4000 and Musemage which supports OpenCL on GPU. I noticed that with every new driver series performance of Musemage decreases. I guess this is not intended. The ingame benchmark makes it pretty easy to compare.

15.26.13.64.2778 score= 2323

15.28.12.64.2932 score= 2105

15.31.64.2885 score= 1576

As you can see the oldest driver series achieves the best score which looks a bit odd.

Hi Michael,

Yuri_K_Intel — Fri, 18 Jan 2013 12:59:58 GMT

Hi Michael, Thank you for the information. I was able to observe a similar pattern in performance figures. So I will forward the information to the appropriate team for investigation. Thanks, Yuri

Hi Michael,

Yuri_K_Intel — Tue, 30 Apr 2013 05:40:39 GMT

Hi Michael, I have submitted a ticket for this issue. But it seems like this is OpenGL, not OpenCL issue. The article at http://www.tomshardware.com/reviews/photoshop-cs6-gimp-aftershot-pro,3208-12.html says: "We discovered during testing that Musemage, like Photoshop CS6, does nearly all of its GPU-based acceleration via OpenGL. The only feature Musemage currently codes for OpenCL is HDR processing." And I guess, this was confirmed by our initial analysis. Still an issue though, so thank you for reporting it. Thanks, Yuri

The ticket I have submitted

Yuri_K_Intel — Tue, 30 Apr 2013 10:24:35 GMT

The ticket I have submitted already has OpenGL assigned as a component, so we just need to wait for the final investigation/fix. Thanks, Yuri

Can't find that driver on

LLess — Tue, 04 Jun 2013 03:06:50 GMT

Can't find that driver on Intel Download page... Is that a beta build ?

Good blog to be aware of,

LLess — Tue, 04 Jun 2013 23:44:03 GMT

Good blog to be aware of, thanks :)

By the way there is a another one apparently. Anyway I will just wait for the officially released one (or one that Intel send me :).

Moving to an Haswell system

LLess — Thu, 06 Jun 2013 01:55:28 GMT

Moving to an Haswell system soon (I hope) so I will indeed need a newer driver than that.

Thanks again for the link :)