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Profileveebee

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Message 36265 - Posted: 5 Feb 2010, 8:27:29 UTC
Last modified: 5 Feb 2010, 8:29:12 UTC

After running a GTX275 and a GTS250 together in one of my i7's, I was stoked at the ability to use two GPU at once.
I DID have to create/ insert a cc-config file before they would work though.

Now I have found that cheapp 4770's leave even the gtx 275 for dead, so I put the gtx 275 into another i7 and put (initialluy) one 4770 into the original i7.
today another 4770 arived mysteriously on my doorstep .. so I put the second one into the i7 with the other 4770.

So, now have 2 in there, but BOINC still only seeing one.

I Checked that the cc-config file is till in boinc data folder... even "read config file" and shut-down/ restarted boinc client..

still only sees/ runs one card.

pleeez help ??
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ProfileThe Gas Giant
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Message 36266 - Posted: 5 Feb 2010, 9:01:50 UTC
Last modified: 5 Feb 2010, 9:02:59 UTC

Just confirming you have the following in your cc_config file

<options>
<use_all_gpus>1</use_all_gpus>
</options>

Also I've seen the situation where you have to re-install the display drivers when you install the second card.
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Message 36267 - Posted: 5 Feb 2010, 9:15:42 UTC - in response to Message 36266.  

My config file is as follows:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

I will try a re-install of drivers..

(after a cpl glasses of wine and watching some of the cricket.. Aussies are gonna smash Pakistan.. again !)

will post results after driver reinstall. cheers !
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Cluster Physik

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Message 36269 - Posted: 5 Feb 2010, 9:44:35 UTC - in response to Message 36265.  

still only sees/ runs one card.

pleeez help ??

Activate Crossfire.
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ProfileThe Gas Giant
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Message 36270 - Posted: 5 Feb 2010, 10:00:54 UTC - in response to Message 36267.  

My config file is as follows:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

I will try a re-install of drivers..

(after a cpl glasses of wine and watching some of the cricket.. Aussies are gonna smash Pakistan.. again !)

will post results after driver reinstall. cheers !

Looks like we had some trouble...
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Message 36271 - Posted: 5 Feb 2010, 10:06:47 UTC

Cricket is a disaster !


now, back to the problem at hand...

I have never had dual ATI cards before... the "crossfire" scenario - does this require some sort of 'cable" / wire between the cards ?

when I did the nVidia dual cards (running collatz) no connection was required.

I do not have any form of connecting "wire"/ cable to go between the cards.. nothing other than a video cable, and power-adaptor connection, and DVI to VGA connector came with both cards...

if they dont work this way (both cards simply installed inot the PC) I will pull the gtx 275 for the time being.

if I definitiely need this crossfire connector, where do I get one? should be standard inclusion in box !
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ProfileDavid Glogau*
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Message 36272 - Posted: 5 Feb 2010, 10:35:09 UTC - in response to Message 36271.  

They come in the Mobo box, or with the higher end graphics cards. You can buy them separately. The other thing I do is to is to connect each card up to a monitor, one with the VGA adaptor, this seems to work for me.

If you go the seperate monitor route, you will also need to enable the desktop across all monitors in windows. Dummy plugs work as well.

I do have four GPU's in a crossfire setting with only one monitor connected. which works for me.
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Message 36273 - Posted: 5 Feb 2010, 10:46:57 UTC - in response to Message 36272.  

THANKS DAVID !

I should have remembered about "dummy plugs" etc, as they (and the dual ATI card scenario) were a recent discussion on our team forum ..

connected a spare monitor, restarted boinc client and BANG !

Both working !

Problem Solved thank you very much !

If you were in our team I could give you "+1 Aussie Karma".. , but sadly you are not in Boinc@Australia.

Thanks again for your help everyone !
.. now, back to the cricket, my chardonnay and Jatz crackers with ham, cheese and tomato !
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Message 36418 - Posted: 11 Feb 2010, 13:14:04 UTC
Last modified: 11 Feb 2010, 13:14:38 UTC

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John Clark

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Message 36420 - Posted: 11 Feb 2010, 16:31:32 UTC
Last modified: 11 Feb 2010, 16:34:09 UTC

Sorry to be a pain, but, given time and some cash, I want to go to a dual ATI GPU set up on a couple of my quads.

Question:

Where is the cc_config file located?



I cannot see it in the /local disk/programme files/BOINC folder/


nor can I see this file in either -

/Local Disk/Applications & projects for BOINC/

or

/Local Disk/Applications & projects for BOINC/projects/milkyway.cs.rpi.edu_milkyway folder/



NOTE: The file path to /Applications & projects for BOINC/ is where I have chosen to locate the BOINC projects folders.
Go away, I was asleep


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Message 36422 - Posted: 11 Feb 2010, 16:41:50 UTC - in response to Message 36420.  
Last modified: 11 Feb 2010, 16:42:11 UTC

...

Question:

Where is the cc_config file located?


It should be in the data directory of BOINC. It depends on your installation.
Most probably it's C:\Program Files\BOINC\ OR C:\ProgramData\BOINC\.

PS. If it's not there you have to create it manually with a simple text editor and put it in the correct folder. ;-)
Lovely greetings, Cori
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John Clark

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Message 36425 - Posted: 11 Feb 2010, 18:56:19 UTC - in response to Message 36422.  

[quoteIt should be in the data directory of BOINC. It depends on your installation.
Most probably it's C:\Program Files\BOINC\ OR C:\ProgramData\BOINC\.

PS. If it's not there you have to create it manually with a simple text editor and put it in the correct folder. ;-)[/quote]


I cannot see such a file in the /c:/program Files/BOINC/ folder or directory. So I will need to create one nearer the time I have the money to ...

Thanks Cori
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ProfilePaul D. Buck

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Message 36429 - Posted: 11 Feb 2010, 21:19:22 UTC - in response to Message 36425.  

I cannot see such a file in the /c:/program Files/BOINC/ folder or directory. So I will need to create one nearer the time I have the money to ...

If you use textpad the cost is free ... :)

Seriously there are many reasons to add a cc config file to your system. I use mine to control debts that get out of whack and many of the logging options ... I even changed the length of the stdout file so that log rotations do not destroy event that happened several days ago if I want to go back and look at them.
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