Yes, I see the application priority uplift from 'below normal' to 'normal' here too. I wasn't aware that was part of the plan - or it may have slipped in at an earlier stage of the x37/x38 development cycle, and I just missed it. I'll ask the developer.

I may be wrong, but I don't think anyone has done the straightforward 1/2/3 task per card comparisons yet for x38g - if anyone has, please post them here.

Just a quick test, using driver 275.33, 3 x GTX470 OC.

1 per card 9 to 11 min per WU

2 per card 15 to 17 min per WU

3 per card 20 to 22 min per WU

Video driver now seems stable, no more driver restarts and no downclocking, temps are running a bit higher than v0.37 - 266.58, will have to remove OC during warmer weather.

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Kevin

Just ran the new installer, then modified the app_info for 2 Work Units at a time.
On my GTX460 shorties used to take around 5:30, now they appear to be going through in around 4:30. A significant speedup.

Well done.

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Grant
Darwin NT

Sorry Guido.man, I saw this..

Not much to be gained by running more than 1 WU at a time.

and I guess I read it wrong. Thought you were complaining about not gaining much by running more than one at a time. I see by your little math test that running more than one on your rig is actually faster than running one at a time. One at a time times three equals 273 seconds as opposed to three at a time taking 261 seconds. 12 seconds doesn't sound like much at first glance but when you add in the time to switch to the next work unit and get it loaded up and running it really adds up.

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PROUD MEMBER OF Team Starfire World BOINC

Sorry Guido.man, I saw this..

Not much to be gained by running more than 1 WU at a time.

and I guess I read it wrong. Thought you were complaining about not gaining much by running more than one at a time. I see by your little math test that running more than one on your rig is actually faster than running one at a time. One at a time times three equals 273 seconds as opposed to three at a time taking 261 seconds. 12 seconds doesn't sound like much at first glance but when you add in the time to switch to the next work unit and get it loaded up and running it really adds up.

I suggested that it would be helpful for somebody to carry out that test in the context of Eroc's host with one GTX460 and one GTX260 GPU. The question was whether the productivity increase of moving from 1 task to 3 tasks on the GTX460 was worth sacrificing the contribution of the GTX260 for - since I don't think it would be wise even to attempt 3 tasks at once on that card.

If the gain from running tasks 3-up is under 5%, then I think my gut instinct that, for those running mixed cards from different generations, using all cards but restricted to one instance per card is potentially the better option.

Unless to have a second host you can transplant the card into, of course.

One might also consider, if the gain is only minimal if using for example one 460 and one 260, if it's worth using the extra power that's needed.

One might also consider, if the gain is only minimal if using for example one 460 and one 260, if it's worth using the extra power that's needed.

Yes, for somebody with an older graphics card lying around, say after an upgrade, there's always a three-way power choice to be made.

1) Put both cards in one host, to save CPU/motherboard/HDD/etc power overheads.
2) Put the second card in a second host, to allow the new card to work at peak efficiency.
3) Retire the old card completely.

Each upgrader will have to find their own solution, bearing in mind the age and power (in both senses) of the retired card, the availability of a spare computer (that would be powered up anyway), and so on. All we can do is provide some figures to help users make their own decision.

I disabled 2 of the 8 HT's otherwise the system was too sluggish to work with.
Use 2 GTX 295 on that machine and the temps seem to have gone up a couple of degrees.

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TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking.

Yes, I see the application priority uplift from 'below normal' to 'normal' here too. I wasn't aware that was part of the plan - or it may have slipped in at an earlier stage of the x37/x38 development cycle, and I just missed it. I'll ask the developer.

Yes, I'd forgotten an issue which arose last month during testing.

It was found that the new CUDA app for nVidia cards suffered a big loss in performance at 'below normal' priority when certain other applications were running on the same machine. We're looking into it to see if the incompatibilities can be ironed out.

In the meantime, if anyone finds that the sluggish screen behaviour is too much to live with, we can suggest:

a) Free up one or two CPU cores, depending on the number of tasks running, as Fred (efmer) has already posted.
b) Use Process Lasso (free download) to restore the x38g application to 'below normal' priority.
c) Re-install the x32f_preview application from the v0.37 installer. Although that's no longer available to download direct from the Lunatics website, I can make a copy available if anybody hasn't kept their copy.

I for one would be interested in knowing what "certain other applications" there's talk about :) Is it apps that all are running, maybe built into windows?

Answered by PM.

Answered by PM.

Could you also please PM me those apps? :) I might be able to just avoid using them in future :D

Cheers!

Answered by PM.

Could you also please PM me those apps? :) I might be able to just avoid using them in future :D

Cheers!

You're all right - you won't be using them, I promise you. I think we're on the way to getting this sorted out now.

Answered by PM.

Could you also please PM me those apps? :) I might be able to just avoid using them in future :D

Cheers!

You're all right - you won't be using them, I promise you. I think we're on the way to getting this sorted out now.

Sweet, thanks mate. Short of benching and tweaking my oc, I don't do much else on my pc these days anyway.

Also, thanks for looking into the problem - appreciate the effort :)

This far-from-tech type just installed .38 and everything looks okay -

Two minor questions - from all the release info, I conclude that my on board ATI HD 4200 should work - right? want to confirm - its currently disabled so I didn't install your ATI apps. It won't play well with my Nvidia card, but if it will work with your apps, I'll make another try - not asking for help on that, I'll work in another forum. Just want to know if it is worth the effort.

Second, I chose the SSE3 option even though BOINC thinks I only have SSE and SSE2. Will I have a problem? I ran SSE2 with .37. Here's some selected startup messages from BOINC (deleted some for brevity purposes):

Starting BOINC client version 6.10.60 for windows_intelx86
Processor: 2 AuthenticAMD AMD Athlon(tm) Dual Core Processor 5050e [Family 15 Model 107 Stepping 2]
Processor: 512.00 KB cache
Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 htt pni cx16 syscall nx lm svm rdtscp 3dnowext 3dnow
OS: Microsoft Windows XP: Home x86 Edition, Service Pack 3, (05.01.2600.00)
NVIDIA GPU 0: GeForce GT 240 (driver version 26658, CUDA version 3020, compute capability 1.2, 1024MB, 257 GFLOPS peak)
SETI@home Found app_info.xml; using anonymous platformA

AMD and CPU=Z say that the 5050 e has SSE3.

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Another Fred
Support SETI@home when you search the Web with GoodSearch or shop online with GoodShop.

Cannot speak for the 4200 but you should have no problem running the sse3 AMD app.

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PROUD MEMBER OF Team Starfire World BOINC

HD 4200 is RV 620 based GPU.
OpenCL needs at least RV7xx GPU.
So this won´t work.

But your CPU should work with SSE3 app.

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With each crime and every kindness we birth our future.

(...)
Second, I chose the SSE3 option even though BOINC thinks I only have SSE and SSE2. Will I have a problem? I ran SSE2 with .37. Here's some selected startup messages from BOINC (deleted some for brevity purposes):

(...)

AMD and CPU=Z say that the 5050 e has SSE3.

You shouldn't believe all what BOINC say.. ;-)

CPU-Z is a well tool to show which extensions your CPU have. Then install the app with the max extension of your CPU.


- Best regards! - Sutaru Tsureku, team seti.international founder. - Optimize your PC for higher RAC. - SETI@home needs your help. -

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Thanks all for fast responses. Will forget about that onboard GPU and leave it disabled in BIOS.

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Another Fred
Support SETI@home when you search the Web with GoodSearch or shop online with GoodShop.

Thanks all for fast responses. Will forget about that onboard GPU and leave it disabled in BIOS.

Onboard GPU can make use of Hybrid AstroPulse.
BTW, I considered onboard GPU chipsets as main target for Hybrid AP now, cause discrete non-OpenCL GPUs obsolete now.