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It's actually not that easy. The CPU implementation depends heavily on the OpenCL drivers. You are using the Intel drivers, which aren't the best choice. Try again with AMD's OpenCL 2.0 drivers, it should be faster (I used them in this score). Yes, the bench loves raw MHz and I am glad about that (that's actually what I like most about SuperPI. ). But that's not the whole game. Memory can be important too and can make a difference of 10 seconds or more, depending on the platform. You can optimize it by having a look at the reduction time in the statistics (last line).

I wouldn't be too sure about that. Hawaii got a big boost in integer performance, which might have been related to the Bitcoin mining hype back then. Yes, rumours indicate more compute cores for 390X, but those seem to be designed for handling virtual reality technologies. They might cut back on integer performance and prefer floating point instead, which means more frames per second for 3d in-game graphics. It's not that straight forward, you know? So let's calm down and see what the vendors got up their sleeves for this year and adjust as needed. The HWBOT staff will take care of that, I have no doubts.

Yes, it will be allowed shortly. We are currently discussing timing issues and there will be an update of GPUPI today that additionally checks for an enabled HPET timer.

Your graphics card has no double precision support.

Wow! Awesome score!

We have discussed this recently and came to the conclusion that 32B makes no sense today. It's just not fun to run this benchmark on single cards for more than 15 minutes to get a result. Yeah, multiple GPUs have a lot of performance headroom and will push the times faster towards zero than what's possible with other benchmarks. If that happens 32B might become more popular for multiple graphics cards and we will react on it properly, may add or even shift points to 32B. But that will take a good while in computer years.

GPUPI 2.0 is official! The benchmark now supports multiple graphics cards and CPUs and integrates automatic HWBOT submission including hardware detection and screenshot upload. HWBOT just announced it as their first GPGPU benchmark and gives world record points, globals and hardware points for GPUPI 1B and GPUPI for CPUs - 1B. To see what's possible with version 2.0 have a look at this result with 3x GTX 980 and 1x GTX 780 Ti: If you have any feedback or questions, just let me know. Full changelog: Multi-GPU and Multi-CPU support New platform and device selection with tree view HWBOT integration with automatic result submission including hardware detection (Graphics Card, CPU, OS) and screenshot upload Improved detection of AMD graphics cards (HD 7xxx und Rx xxx only) Encrypted kernel code using AES/CBC Support for CUDA 7.0 Improvements for error logging (GPUPI.log in the working directory) Compiled with Visual Studio 2013 Community (Update 4) and AMD OpenCL 2.0 headers New about dialog including benchmark and support information Links: Download it here | Details on hwbot.org

I've sent out mails to the winners a few minutes ago. If you didn't get anything although you consider yourself to be one of those lucky bastards, get in touch with me!

Run into that a few days ago. Be sure to insert the score correctly into the form. Especially minutes, seconds and milliseconds have to be put into their own input fields, no comma or dot allowed!

It was actually a very special Pi Day! You know, 14th of March 2015 = 3/14/15 = 3,1415... I've had a livestream going for the members of overclockers.at and benched a little bit GPUPI: Best result at 5217 MHz: http://hwbot.org/submission/2795402__mat__gpupi_for_cpu___1b_core_i7_5960x_5min_29sec_988ms Currently best CPU result.

Ok, it was me. A "." accidentally slipped into the milliseconds result by copy pasting it with tired eyes. Well, a better form validation would help though.

Hi guys, seems like the result submission via hwbot.org/submit/create is not working. I tried to submit two scores, SuperPi 1M and GPUPI for CPU 1B, and both are giving me blank pages, but returns HTTP Code 200. Is it down for everyone or just me?

No worries, the last batch was only very small (8 shirts ordered in the last 6 weeks) so we waited until the competition ended to get last shipment going. This is necessary because we have so many different sizes and colors, that we can't order every shirt separately, it would be too expensive. They will be printed this week and send out early next week. Please be a little more patient, we are working on it! Btw, you should have got a notification, it may be in your spam folder. And the webshop is not down, I just had to remove the products, because we can't allow that many color and size options from now on. We may put them online again with less options in the future, lets see. I will let you know here in this thread.

Awesome!

The release of GPUPI 2.0 is close! I've just finished the HWBot submission:

The final phase of the competition is here and we are so close to 100 participants! Yesterday I've wrecked my R9 290X Lightning (no screens of course), so I binned my ASUS GTX 980 STRIX samples one more time to participate in the competition. Best one could do 1630 MHz on air and I was able to beat my old score in 1B. That's what I like most about overclocking ... if you put in an effort, it pays off. Not always, but suprisingly often. http://hwbot.org/submission/2776628__mat__gpupi___1b_geforce_gtx_980_30sec_706ms

I think the concept of having different graphics for a bench is intriguing and sounds fun. But I guess it won't change to much on the top scores in the end, so having it categorized under 4x GTX 980 while being slower or equal (like my example score) to 4x GTX 980 would suffice for listing. We could also ban scores with multiple different cards, but in my opinion there is not much advantage in doing that. Allowing it will encourage people to submit multi gpu results and earn their points with what they have and can afford. Only thing is, that it should always be submitted in the category with the strongest card, that crunched the most numbers. It can be easily checked with the new statistics for in 2.0. But I will leave the decision to HWBot team of course, you know best. Btw, the screenshot also shows another great possibility with the new version: Each graphics card runs its own frequency and will therefor crunch more packets to improve the overall time. I am pretty amazed how accurate and fun this is! Regarding points and seamless integration, I am happy to implement the bot API with the next version. I was still waiting for GENIEBEN to finish his improvements with the C++ API. What's the status on this? One more thing about the official release of the GPUPI 2.0. I thought I will wait for the Turrican Memorial Competition to finish to avoid any confusion, especially in the 2nd stage!

First experiments with GPUPI 2.0, which is currently in beta version. 3x GTX 980 and 1x GTX 780 Ti - yes, you can plug in whatever you have, although I guess, that NVIDIA and AMD can't be combined, because of the driver implementation. Coming very soon! Btw, will this break hwbot? Multiple graphics cards can't be submitted by now afaik!

Awesome, thanks!

He tweaked the batch and reduction size to get the best efficiency for the 290X. No lucky runs necessary. Great score, grats!

That's what I have proposed for this competition from the beginning. I thought that at some time in the competition the oldest hardware is found. Then it's everybody to the battle stations and fire at will! Massman, would that be some kind of technical problem with the competition engine?

I got Noctua to double their prizes because of the new separation between stages. It's pure win, guys! Thanks Massman, all good now!

I just checked with the competition site and that's a misunderstanding. Those prizes were the original ones before we extended the competition with EK's prizes and doubled Noctua's. Massman, please be so kind and remove them!

It's actually not that weird. GPUPI uses two types of precisions for the calculation of pi. The main part is done with 64 bit integers followed by a smaller part using double precision. Especially AMDs Hawaii is very strong with integer math, that's why they are also very good for Bitcoin mining etc. NVIDIAs Fermi, Kepler and Maxwell are very good with floating point math, but clearly fall behind on integers.

Yes, it is allowed and it should be! Each graphics card can perform very different on each setting. If you want to optimize your score, play around with it. It can speedup the whole calculation and enhance reduction time. Hmm? Both stages are open until the 28th of February. We extended the competition two weeks ago.