There is a new driver available for nvidia Gpu`s named 334.89 at this day.

Have a good time
Eckbert

thx :-)

Just updated to 334.89 from 332.21. I'm now seeing that ACEMD tasks are no longer using a full core each. Is this normal?

In Windows' Resource Monitor in the CPU usage it used to read 12 (1 full HT thread) on each ACEMD task. It now reads 3.
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Excellent. Thank you for the quick reply.
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I like the 334.89 driver for my 680/460 XP machines. Just a couple percent lower GPU utilization (dropped from 97/99% down to 95%/98%). But a whole lot lower CPU use for the 680. The 460 was already low to begin with.

I tried the 334.89 driver on my 780Ti machine back went back to the 331.82 driver. The GPU utilization dropped by 10-20% depending on WU. Dropped so low, the card was no longer running at maximum boost. Once I switched back, GPU utilization went back up.

Anyone else with 780Ti on Win7 see a big GPU utilization drop (as reported by EVGA Precision) when they enabled the 334.89?

Thanks for this useful information Jeremy. I have downloaded the latest driver and was planning in installing, but reading your post I won't. My 780Ti is already in low GPU use, I like it higher not lower. Tried all your settings but the card will not boost, despite 70-72°C.
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Greetings from TJ

Good to know about the 780Ti. I'm about to switch my 680s out for two of those.
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Good to know about the 780Ti. I'm about to switch my 680s out for two of those.

I haven't noticed any difference on my Windows 7 computer with EVGA 780TI SC

With the same or similar CPU usage settings (75% in my case)I find no issues with the 334.89 driver. On my W7 system the apps are either the same speed or slightly faster. GTX670 and GTX770's only though (no GK110 cards). So perhaps it's just an issue on GK110 cards? I would want to see it tested by several others, and hear about the Boinc settings, before announcing it as a bad-egg (and then only for Win7 and GK110).

I recently updated my GTX 650Ti drivers to 320.57. I am curious and would like an explanation as to why my tasks are all CUDA 4.4 while everyone else appears to be processing CUDA 5.5 tasks. The CPU utilization and Run Time for all my tasks are too high. Can anyone help?

Thanks, John

Thanks for the information: I will install new drivers shortly.

CUDA 5.5 work is distributed from a higher driver version onwards, if I remember correctly. The older ones support it officially, but it didn't work properly. The WHQL 327 or 332 driver should be fine, 334 as discussed here. For optimal runtimes your CPU should not run at 100% load.

Regarding CPU load: for a Kepler GPU (almost all series 600 and 700) it's normal that 1 logical CPU core is used all the time. Exception: the new driver discussed here.

MrS

Just got my 780Tis in and running on 334.89. One is running SANTI_MAR at 71 - 73% utilization and the other is running NOELIA_FXA averaging around 79% utilization.

These are my first runs on these cards. Anyone else running on 780Ti with 334.89? I'm curious how my numbers compare. The GPU utilization dropped as compared against the 680 but I think that was to be expected.

I'm also still running CPU tasks at 75%. I checked at 50%, 62.5%, 75% and there does not seem to be an effect on the GPU tasks.
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I'm using driver 331.82 and have ~76% GPU use on the 780Ti. Run times are around 24000 seconds but varies from WU to WU. With XP or Linux times go under 20000 seconds, but have not tried that myself. But the card is faster then a GTX680, even with Win7-8-8.1
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Greetings from TJ

Thanks. It looks like we're having similar problems with this card. I've posted a couple times on the "Poor times with 780 Ti" thread.

http://www.gpugrid.net/forum_thread.php?id=3583

Looks like it's not the new driver causing it.
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Matt,

If you do not mind, I would be very curious if your utilization increases if you go and install the 331.82 drivers.

http://www.gpugrid.net/forum_thread.php?id=3634&nowrap=true#35285

This weekend, I will install the 334.89 driver again to ensure I duplicate my previous drop in utilization.

Regards,
Jeremy

Jeremy,

Thank you. I remember reading that post now that I've seen it again - even downloaded them at the time just in case. I'll give it a try tomorrow.
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Got to it a bit early.

After I installed 331.82 I was running fine until tasks in progress completed. One card came back up to full boost with the new task, the other has gone back down to base speeds again with its new task. Both running SANTIs now, about 75% utilization which is just a couple points better than 334.89 as discussed in this thread.
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Driver is 331.82 and OS is Win7 64. Have a Santi running on each 780Ti card. Both cards holding full boost (1187 and 1200). EVGA Precision says utilization is ~75 with low variation (jumping 72-77%).

Install the 334.89 as Clean Install. Reboot, and they come back up and both cards full boost and low variation at ~73 utilization.

Change from Adaptive to Prefer Max Performance, apply, reboot.

Now cards are at 45% utilization with high variation (jumping 40-60%). Cards not full boosting.
Reboot again, and now 73% (low variation).
Reboot again, and now 60% (high variation).
Reboot again, and now 72% (low variation).

Change back to Adaptive.
Reboot again, and now 73% (low variation).
Reboot again, and now 73% (low variation).
Reboot again, and now 73% (low variation).

Change back to Prefer Max
Reboot again, and now 50% (high variation).
Reboot again, and now 65% (high variation).
Reboot again, and now 70% (low variation).

So I think this is an Adaptive vs Max Performance.
Change back to Adaptive.
Reboot again, and now 73% (low variation).
Reboot again, and now 55% (high variation).
Reboot again, and now 60% (high variation).

Change back to Prefer Max
Reboot again, and now 73% (low variation).

Installed the 331.82 drivers with Clean Install which defaults to Adaptive
Back to 75% (low variation)
Reboot again, and now 75% (low variation).

Change to Prefer Max
Reboot again, and now 71% (low variation).

Change back to Adaptive.
Reboot again, and now 73% (low variation).

Not sure what is happening between reboots. Going to leave the 331.82 installed for now for the Win7-64 and 780 Ti cards.

Not sure what is happening between reboots.

I have some data on my 780Ti to share.

1) OS is version 16 of 64-bit linux mint cinnamon
2) 3930K on Asus sabertooth x79 MB
3) 1 CPU is "dedicated" to GPUGrid
4) Installed 331.49 drivers a few days back from Nvidia website
5) The last 20 WUs have been Santi and crunch time is under 20,000 seconds

http://www.gpugrid.net/results.php?hostid=166613

6) CPU utilization is about 25%
7) I have coolbits enabled so I can control GPU fan speed manually. Currently the fan speed is set to 65%.

Data from Nvidia Settings (New info like GPU utilization, memory used, PCI bandwith, from this driver release I think). This is a pleasant suprise for me.

1) GPU utilization varies quite a bit but usually from 80-90%
2) As Dagorath mentioned in this thread, if you keep the temp of the GPU well below maximum (82C on this card), the GPU boost clock will remain steady (1006 MHz on this card)
3) Fan speed at 65% which keeps the temp at 73C and thus a steady Max boost clock.

Mt GTX780Ti runs at 70°C at the moment and that is cool for this card, but it runs at 875.7MHz steady, GPU use ate 76% on Win7 5 threads do Rosetta the other 3 are to use by the GPU and other programs.
Occasionally the cards runs a bit faster to 900-915MHz, even when the temperature is higher. Driver is 331.82. It is not as fast as other can do with the same card but at least it runs error free. I will not change anything and buy a second one from EVGA as soon as they are available again. I have now an Asus one.
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Greetings from TJ

When you stop crunching to reboot the GPU cools off. When it's rebooted and crunching again the temperature rises to the temp where the card downclocks to try to keep its temperature down. If you have adequate cooling the temperature will decrease and when it drops below the "magic temp" the clocks boost. If you don't have adequate cooling then the temp will not drop and the clocks will stay at the low speed until you quit crunching and reboot at which time the GPU cools off.

Jeremy, stop running CPU tasks and see what happens. Either you've found a bug in the driver or its because the CPU is being used. People should try to remember that CPU usage can hinder GPU tasks because the GPU's still need to use the GPU's. The interference varies by CPU application and by GPUGrid task type. Having a web page with video on it constantly refreshing will reduce performance as will screen-savers...

In the past there were issues with Prefer Maximum Performance selection, and I think they still exist in XP (you can't set it). It's likely there is an issue again for some GTX780Ti cards. If that's not the case perhaps the clocks/boost are not behaving normally. Are you using a start-up delay?
Jeremy and TJ, you are both using similar processors (i7-477x). Are there any Bios or CPU/bus updates available - just in case this oddity is due to some incompatibility?

I'm going back to 332.21 and I suggest others do the same if the clocks drop for you too.

Hi Matt, I see your times of the 780Ti and am impressed. I have also Win7 but my times are 24000-27000 seconds. The cards runs ate 878.7MHz, Memery clock at 1749.6MHz and 69-70°C (GPU-Z). I run only 5 tasks on my CPU, 2 for GPU and 1 free.
Will you please tell me what you have done to get these times?
Thanks.
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Greetings from TJ

Hi Matt, I see your times of the 780Ti and am impressed. I have also Win7 but my times are 24000-27000 seconds. The cards runs ate 878.7MHz, Memery clock at 1749.6MHz and 69-70°C (GPU-Z). I run only 5 tasks on my CPU, 2 for GPU and 1 free.
Will you please tell me what you have done to get these times?
Thanks.

I have also set nVidia 3D to Prefer Maximum Performance as that is the advise here, but even when run a few days on Adaptive it doesn't matter I have tried.
We have the same OS, same driver and same temperature but a different clock speed.
Have you a program running like MSI Afterburner, EVGA Precision or one similar?

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Greetings from TJ

I run Precision X but mostly just for monitoring the cards. I've tried using it in the past to overclock my GTX 680s, but that tends to cause tasks to fail on this project.
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I'm going back to 332.21 and I suggest others do the same if the clocks drop for you too.

...

Of course, now that I've posted this I'm fully expecting things to start acting funny again...

Exactly the same result I have too. worsened's about four hours, the card gtx titanium and also the gtx 680.On the gtx Titan time I have run about 29,000 seconds, which is very wrong.
needs urgently to be to find solutions for all

335.23 WHQL released today ... I'll post back later on Win7 CPU usage
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Thanks - Steve

335.23 WHQL released today ... I'll post back later on Win7 CPU usage

335.23 WHQL released today ... I'll post back later on Win7 CPU usage

Thanks for the heads up!

I have confirmed that, on Windows 8.1 x64, 335.23 uses the same "low CPU usage" on my Kepler device, as the 334.89 and 334.67 drivers.

Also, I'm doing testing on whether it will fall back from Max Boost for reason "Util" when the load doesn't meet a certain threshold. I suspect it will fall back. Therefor, I recommend using the following 2 posts to "Force Max Boost" on any Kepler system:
http://www.gpugrid.net/forum_thread.php?id=3647&nowrap=true#35410
http://www.gpugrid.net/forum_thread.php?id=3647&nowrap=true#35562

Edit: Yup, I confirmed that the behavior where it can downclock from Max Boost and stay downclocked, still exists. I completed a task, there was a brief 15 second pause between tasks (so it downclocked to 3D Base Mhz), then a new task started. Even at solid 82-84% GPU Usage, the GPU is not boosting back up at all. It's probably not considered a bug by NVIDIA, since in their eyes, there's not enough demand on the GPU to warrant boosting. So... I recommend forcing Max Boost, per the links I posted.

Regards,
Jacob

skgiven:
For one of those ~80% tasks... After it's been running for a while, suspend BOINC for about 6 minutes. Then resume BOINC. See if the clocks go back up to Max Boost. For me, if I recall, they generally didn't boost back up. That's why I had to force Max Boost.

Well, thanks for testing. I wish I knew what my particular problem is. It's most obvious, for me, when a GPUGrid task completes. Due to my BOINC settings, it then begins downloading the new task, so there is a "lull" where there's no GPU activity, and then a couple minutes later, the new task kicks in, often not at Max Boost.

Finally had some time to work on testing GPU Utilization under a few different situations tonight.

First things. Last week had my computer start downclocking the GPU after trying the 335.23 drivers. Even after switching back to the 331.82 drivers still had the issue. The following sequence (strange as it may be) seems now for a week to work and prevent the downclocking.

1) In EVGA Precision, hit default and apply to cards.
2) Downclock 100 (-100) mhz for GPU speed.
3) Power computer down for a minute
4) Start back up, let BOINC start, and then load my favorite profile in EVGA Precision (Power Target = 105%, Prioritze Temp to 72C, +50Mhz Overclock).

Have not had the issue since. Cross fingers, knock on wood, etc.

Previously in this thread I discussed the reboots and resulting GPU Utilization was all over the place. The above reboot sequence also gets me a high steady utilization. Based on feedback skgiven says about extra cpu tasks, I wanted to see. So the following test is 331.83 vs 335.23 drivers; CPU Speed of 3.6 vs 4.1 Ghz (could not down clock any further), and then from 2 to 8 threads running. Two threads minimum due to two GPU's. Added one thread at a time which were SETI or Eninstein units.

The plotted data is GPU Usage as logged by EVGA Precision with 1 second polling. Polled each setup for one minute. Discarded 4 data points before and after the change in BOINC to increase threads (Use at most % of CPUs: 25, 38, 50, 63, 75, 88, 100%). Powered down between driver/CPU speed changes for one minute. App_config gives one full thread to each GPU.



So on my computer setup with Santi WU's
* 331.82 gives better GPU utilization over 335.23
* GPU Utilization drops after adding a 5th thread (third extra CPU task)
* Faster I can run the CPU the better 4.1Ghz was better than 3.6Ghz

Testing was with the following two WU's. You can see the restart driver version and temperatures.
http://www.gpugrid.net/result.php?resultid=7950990
http://www.gpugrid.net/result.php?resultid=7950534

End result is that the Santi WU's are processing around 18000-18500 seconds pretty consistantly now with 331.82, 50% CPU Usage, and 4.1ghz.