Advanced search

Message boards : Graphics cards (GPUs) : How to run two CUDA WUs with single GTX295

Author Message
frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7874 - Posted: 26 Mar 2009 | 19:03:50 UTC

I've one GTX295 card running with QX6700 and the best I can crunch is 3 CPU + 1 CUDA WUs simultaneously. I've set the config for BOINC to run max of 6 tasks but it doesn't work.

Is there anyway I can utilise all of my cores (4 CPUs and 2 CUDAs) simultaneously?

I'm using BOINC v6.4.7 with 181.71 driver on W7 X64 Build 7057.

Thanks in advance

Joe
Send message
Joined: 1 Sep 08
Posts: 37
Credit: 5,864,088
RAC: 0
Level
Ser
Scientific publications
watwatwatwatwat
Message 7877 - Posted: 26 Mar 2009 | 19:56:03 UTC - in response to Message 7874.

It's easy. Install the newest driver 182.08, reboot, go the Nvidia control and disable the simultan GPU mode, restart BOINC

Kind regards

frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7879 - Posted: 26 Mar 2009 | 20:25:21 UTC - in response to Message 7877.

It's easy. Install the newest driver 182.08, reboot, go the Nvidia control and disable the simultan GPU mode, restart BOINC

Kind regards


I think 181.71 is the newest driver for W7 but I found driver version 182.08 intended for Vista x64, is this the one you recommend, right? Will it be compatible with W7?

Profile KWSN - Sir Brian - err so...
Send message
Joined: 3 Jul 07
Posts: 14
Credit: 10,010,045
RAC: 0
Level
Pro
Scientific publications
watwatwatwatwatwatwatwat
Message 7882 - Posted: 26 Mar 2009 | 21:05:21 UTC - in response to Message 7879.

also try boinc 6.6.17...

taht allows you to run normal boinc apps on all your CPU cores....

frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7884 - Posted: 26 Mar 2009 | 21:13:03 UTC - in response to Message 7882.

also try boinc 6.6.17...

taht allows you to run normal boinc apps on all your CPU cores....


Updated BOINC to v6.6.17 and use NVIDIA driver 182.08. Now I can compute 4 CPU WUs +1 CUDA WUs. Still no lick.

I did try to disable multi-GPUs and also PhysX GPU acceleration but when BOINC start computing CUDA task, it gave me blue screen error right away or computation error within 3 seconds.

This is a possible driver issue or it was my GTX295's fault?

slozomby
Send message
Joined: 29 Jan 09
Posts: 17
Credit: 7,767,932
RAC: 0
Level
Ser
Scientific publications
watwatwat
Message 7893 - Posted: 27 Mar 2009 | 2:51:53 UTC - in response to Message 7884.

also try boinc 6.6.17...

taht allows you to run normal boinc apps on all your CPU cores....


Updated BOINC to v6.6.17 and use NVIDIA driver 182.08. Now I can compute 4 CPU WUs +1 CUDA WUs. Still no lick.

I did try to disable multi-GPUs and also PhysX GPU acceleration but when BOINC start computing CUDA task, it gave me blue screen error right away or computation error within 3 seconds.

This is a possible driver issue or it was my GTX295's fault?


things to try.
make sure sli is disabled
extend you desktop onto the second gpu core.

dont use remote desktop.

frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7898 - Posted: 27 Mar 2009 | 8:53:04 UTC - in response to Message 7893.

also try boinc 6.6.17...

taht allows you to run normal boinc apps on all your CPU cores....


Updated BOINC to v6.6.17 and use NVIDIA driver 182.08. Now I can compute 4 CPU WUs +1 CUDA WUs. Still no lick.

I did try to disable multi-GPUs and also PhysX GPU acceleration but when BOINC start computing CUDA task, it gave me blue screen error right away or computation error within 3 seconds.

This is a possible driver issue or it was my GTX295's fault?


things to try.
make sure sli is disabled
extend you desktop onto the second gpu core.

dont use remote desktop.



Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me.

Soryy for this bunch of question but I'm rather new to NVIDIA, been ATI's guy for several years ;-).

Joe
Send message
Joined: 1 Sep 08
Posts: 37
Credit: 5,864,088
RAC: 0
Level
Ser
Scientific publications
watwatwatwatwat
Message 7903 - Posted: 27 Mar 2009 | 9:48:11 UTC - in response to Message 7898.

Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me.

Soryy for this bunch of question but I'm rather new to NVIDIA, been ATI's guy for several years ;-).


I use Vista 64Bit with 182.08. With older driver I had a BSOD in the single GPU mode. I turn PhysX on - and activate the not-multi-GPU-mode. SLI is the Multi-GPU-Mode <- this must be disabled!

Perhaps its a problem between Win7 and the driver...

Kind regards

Joe

[PST]Howard
Send message
Joined: 27 Jul 08
Posts: 1
Credit: 5,009,518
RAC: 0
Level
Ser
Scientific publications
watwatwatwatwatwatwatwat
Message 7904 - Posted: 27 Mar 2009 | 10:55:01 UTC - in response to Message 7898.
Last modified: 27 Mar 2009 | 10:56:24 UTC

"Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me."

Normally you can disable SLI in BIOS settings when you reboot.

frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7928 - Posted: 28 Mar 2009 | 7:56:13 UTC - in response to Message 7904.

"Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me."

Normally you can disable SLI in BIOS settings when you reboot.


I did try to look in the BIOS but couldn't find anything. My motherboard use Intel X38 chipset not the NVIDIA one, don't think I can set anything in relation to the NVIDIA GPU in the BIOS.

Tried to work around but end up in either the blue screen errors or computation errors.

I actually add another card to my computer, 8600GTS which is not the good one but at least it's CUDA enabled. Still no luck, can run only one WU at a time instead of three and is extremely unstable. Can easily get computation error with two cards enabled. Or maybe my settings were improper.

ExtraTerrestrial Apes
Volunteer moderator
Volunteer tester
Avatar
Send message
Joined: 17 Aug 08
Posts: 2705
Credit: 1,311,122,549
RAC: 0
Level
Met
Scientific publications
watwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwatwat
Message 7932 - Posted: 28 Mar 2009 | 11:18:30 UTC - in response to Message 7928.

The SLI controls have to be in the driver and may be in the BIOS. The NV driver offers so few options, I'd imagine it's hard not to find the option there?

MrS
____________
Scanning for our furry friends since Jan 2002

frigens
Send message
Joined: 24 Feb 09
Posts: 14
Credit: 107,808,533
RAC: 0
Level
Cys
Scientific publications
watwatwatwatwatwatwatwat
Message 7961 - Posted: 29 Mar 2009 | 18:18:23 UTC - in response to Message 7932.

The SLI controls have to be in the driver and may be in the BIOS. The NV driver offers so few options, I'd imagine it's hard not to find the option there?

MrS


If it's the same as disable multi-GPU mode? I tried that option but always end up in the blue screen error and/or computation error result on BOINC.

Profile Paul D. Buck
Send message
Joined: 9 Jun 08
Posts: 1050
Credit: 37,321,185
RAC: 0
Level
Val
Scientific publications
watwatwatwatwatwatwatwatwatwat
Message 7962 - Posted: 29 Mar 2009 | 18:29:27 UTC

On my GTX 295 cards I get blue screen when I use the Nvidia control panel. When I installed the drivers on the two cards it took four cycles to install all the drivers ... but, I cannot use the control panel.

Check to see if the cards have the drivers installed by only using the windows right click menu.

If one card does not have the driver installed for the second core, it will not be seen.

Post to thread

Message boards : Graphics cards (GPUs) : How to run two CUDA WUs with single GTX295

//