LuxMark OpenCL score never changes

[Nodens]

@Nodens,
Thank you for your suggestion on the video card driver. I have reinstalled it twice during my adventures in OC, but no change. What I have not tried is downloading RealBench again. Since its a simple unzip and run, I made an assumption that not much could have gone wrong. Perhaps a serious oversight on my part. I will give the video card driver one more go as well as a new RealBench download. I do appreciate your suggestions of possible causes and fixes.

Perhaps try a different video driver version. It may be that the particular driver version has an issue with your particular card. System instability can also cause RB files to get corrupted so having the zip file ready to extract a new copy when in doubt is always handy.
Other than that you can also try "sfc /scannow" on a command prompt with admin rights to see if any windows system libraries are corrupted.

That said the OpenCL/CUDA Nvidia issue is a matter of company politics. Nvidia came out first with GPU acceleration with its proprietary CUDA and established a market hold there. CUDA runs only on Nvidia. If Nvidia starts paying proper attention to OpenCL so that it performs good on the cards, then developers would have no incentive at all to use CUDA. They would go for the one size fits all approach of OpenCL (why bother if it performs the same and runs on everything?). Nvidia just wants to starvate the competition and maintain their grip on GPU acceleration. There's corporate politics for you
As much as I prefer Nvidia hardware and of course Nvidia drivers (specially Nvidia drivers heh), compared to whatever AMD has to offer, I believe that in this regard they are absolutely wrong. They should either open the CUDA API or merge its technologies with OpenCL and focus entirely on performing better and being more stable instead of trying to control the market like this. This is my own personal opinion for whatever it matters.

Still the point is that a low OpenCL score won't affect your system score much. The difference that it makes you can surpass by optimizing and tweaking your system. Points in the other tests are worth WAY more (The formula will be revised if Nvidia straightens their OpenCL support out)!

[Ambidexter]

Hi,

My OpenCL scores are always 24569 too. When I OC my 4770K from 44 to 47, when OC'ing my GTX770-DC2OC-2GD5 from "power saving" to just before FurMark barfs, I always get the same OpenCL score.

The only difference with particular runs of RealBench 2.0 (Thanks for all your work team, I love this software!) is my KSamples/Sec vary from below 300, to 337 or so...but with the same 24569. So, if the OpenCL subscore is comprised by the card and not the OC performance, I'd think that leaving the KSamples out of the UI made sense. On the other hand, at least I can see that a particular OC is better than another for the CPU and GPU...but then why not factor the KSamples into the score, and give us, like 10 points for every 50-100 KSamples, or something?

When we see the time changing in other subtests affecting the subscore, it's not unreasonable to expect the OpenCL to do the same.

Two fine points. If each subscore is shown with a elapsed time displayed, I'd like to see the OpenCL score have a time displayed, as well as a final time for the total test. So that even if you don't rate the OpenCL in a score, I can use it on my own spreadsheet to see how changes to the clocking / memory / GPU affect my total times.

Again, good job!

Cheers,

-Ambi

P.S. The only other reason I like the OpenCL test is my Nvidia drivers, even the Nov beta ones cause me driver resets. (so I can try to fix them!) I try to tweak "around" these, but like BSODs, it's kinda hard to tell if a particular failure is a CPU speed or voltage issue, a GPU speed/memory issue or a system memory issue. The driver (and the library MSVCR110.dll) always crashes at the same point, so it may help to know what it does at that point, so I'm trying to get the labels for the driver and the library)

[Ambidexter]

Hi DoGood,

I'm envious of your i4770K! Mine will do 4.6X4+4.6 cache, but I need to use 1.428 or so! If I want to go for 4.7, I need 1.460 or so. So, your 1.350 for 4.6 makes me drool!

Good thing I've got a good water cooler loop!

Cheers,

-Ambi

[Nodens]

Ambidexter you obviously did not read my post. The OpenCL score is made ENTIRELY out of the KSamples/sec value.

There is no timing listed for the OpenCL test because there is no point listing a time as it it will always be the same. The test runs for a fixed duration. Read this: http://chunky.llbit.se/index.php?title=Path_Tracing

If you also get 24569 it means that you have the same issue. BUT you state that you get different KSamples/s. Different KSamples/sec values means different score. Please upload 2 screenshots of 2 runs that have different KSamples/s yet the same 24569 score.

[ChikNoods]

Before overclocking gpu I was at 18,000 @ 108/sec. now I'm at 21,288 @ 217/sec. Don't see it effecting score much. ( G74sx)

[Nodens]

That is normal

[Ripio Suelto]

I apologize for my English and I apologize for revive an old thread

DoGood ------------------------------------------------------------------------------ Ripio Suelto

Asus Maximus VI Hero ---------------------------------------------------------- Asus Maximus VI Hero (BIOS 1603)
i7 4770K @4.6GHz cache @4.6 GHz - 1.350V ------------------------ i7 4770K @4.6GHz cache @4.6 - 1.298V
G.SKILL Trident X 16GB DDR3 2400 MHz ------------------------------- G.SKILL Trident X 24GB DDR3 2400 MHz
dual EVGA GTX 780 Ti Classified 3Gb ------------------------------------ single Asus GTX Ti DirectCu II OC 3Gb
Corsair H100i Water Cooler --------------------------------------------------- Corsair H100i Water Cooler
Samsung 840 EVO 500GB SSD ----------------------------------------------- Samsung 840 EVO 500GB SSD
Cooler Master Silent Pro Gold 1000W ------------------------------------- Seasonic Platinum 1000W

OpenCL score: 24569 ----------------------------------------------------------- OpenCL score: 57379

Both PC specs are almost identical except for the double DoGood's graphic card (almost the same graphic card, but double). Why his OpenCL score is so inferior to mine?

EVERY test has been 24569, regardless of CPU, RAM, or Video settings.
The overclocking of my GPU core and memory clocks do not affect a single digit of the score.
I am not interested in testing the compatibility of my video card with OpenCL. I am interested in testing the performance of my video card which includes the driver and overclocking settings.
Am I the only one that has this issue? Am I the only one that believes a static value is not helpful in benchmarking?

In my case everything is the same thing with the only difference that my score in RealBench (v2.4) OpenCL test is 57379 regardless of CPU, RAM, or GPU settings. Increase my GPU OC progressively to reach 1160 Mhz GPU clock and 7100 MHz memory clock does not change the score 57379

Note: time ago, with BIOS 0903, and a similar CPU and GPU OC, the score was 54098 but increased GPU OCing this score up to 57379 (the same score that currently get with much lower GPU OC (stock OC of Graphic card out the box)

First image: RealBench score with GPU stock OC profile.



The second, with my custom profile, both with old BIOS,
old RealBench version and old OC settings (And Windows 8.1).



The third image is an screenshot during Max+Vray render
to show the values in a full load operation (Today. Windows 10).



Fourth: RealBench/OpenCL score.



Well, I have the same doubts, ocurrs the same in my case. Is not very important, but... why is this? I have just curious, and that is the way to learn.

(note: second image: DeltaT 50.5º C without being under full load (because RealBench not push temperatures as high, during a render the temps up to 78 ~ 80º C without delid), third and fourth, delided and Coolaboratory Ultra, DeltaT 29ºC in full load. I'm a happy man now )

[Qwinn]

Ripio,

In Realbench 2.43 they changed the scoring system. You can't directly compare scores to previous versions anymore. If you can find a copy of realbench 2.42, you may be able to compare with that.

[Ripio Suelto]

Thank you Qwinn
Downloaded.

[Qwinn]

. BUT you state that you get different KSamples/s. Different KSamples/sec values means different score. Please upload 2 screenshots of 2 runs that have different KSamples/s yet the same 24569 score.

Okay.





I know it's not a big variation in the KSamples/sec, but I've had bigger variations and the score stays the same. I'd noticed the stuck score myself for quite a while. If the variation between two KSamples/sec runs needs to be bigger to affect the score, please advise how large it has to be. But I'd think that a score in the 6 figures should change somewhat (logically at least a few hundred points) based on even a small change in a 4 figure value, if one is based directly on the other.