2 1080 ti's, but only one seems to work for SETI

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Miklos M.

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Message 1895295 - Posted: 14 Oct 2017, 13:42:00 UTC

I have 2 1080 ti's, but only one seems to work for SETI. I wonder what am I doing wrong?
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juan BFP
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Message 1895297 - Posted: 14 Oct 2017, 13:45:29 UTC

You need to add to your cc_config.xml

<use_all_gpus>1</use_all_gpus>

By defoult Boinc uses only the most capable GPU.
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Miklos M.

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Message 1895300 - Posted: 14 Oct 2017, 13:58:49 UTC - in response to Message 1895297.  

I understand, but how do I do it, baby steps by steps, please.
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Message 1895304 - Posted: 14 Oct 2017, 14:08:09 UTC - in response to Message 1895300.  

open a notepad

copy the following

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

click save as

select location as follows local disk --> programdata (maybe hidden so you will need to unhide folder) --->BOINC

in file name type in cc_config.xml

in save as type change to all files (*.*)

now you can either restart boinc and it should read the file or you can tell BOINC to reread config files.

Check your event log and make sure you see that it found the cc_config.xml
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Miklos M.

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Message 1895306 - Posted: 14 Oct 2017, 14:08:35 UTC - in response to Message 1895297.  

I wonder if I need to use a bigger power supply then when I had two 980ti's? The computer seems to stop for a brief minute about every 2-3 hours since the second gpu 1080 ti was placed in.
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Message 1895307 - Posted: 14 Oct 2017, 14:09:17 UTC - in response to Message 1895306.  
Last modified: 14 Oct 2017, 14:10:14 UTC

what is your power supply?

Edit..
https://www.evga.com/power-meter/

you can use this to calculate what PSU you need
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Miklos M.

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Message 1895309 - Posted: 14 Oct 2017, 14:12:18 UTC - in response to Message 1895304.  

Sorry do not see "local disk"
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Miklos M.

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Message 1895319 - Posted: 14 Oct 2017, 14:26:30 UTC - in response to Message 1895307.  

Silly of me, I found local disk, but using the program I am not able to see MY power supply listed. The computer is:
GenuineIntel
Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz [Family 6 Model 60 Stepping 3]
(4 processors) [2] NVIDIA GeForce GTX 1080 Ti (4095MB) driver: 385.41 OpenCL: 1.2 Microsoft Windows 7
Professional x64 Edition, Service Pack 1, (06.01.7601.00
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Message 1895320 - Posted: 14 Oct 2017, 14:26:49 UTC - in response to Message 1895309.  

Go to the windows symbol left lower corner, click and hold, now in popup menu click on computer, then under Hard Disk Drive click Local Disk
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Message 1895321 - Posted: 14 Oct 2017, 14:27:56 UTC - in response to Message 1895319.  

Silly of me, I found local disk, but using the program I am not able to see MY power supply listed. The computer is:
GenuineIntel
Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz [Family 6 Model 60 Stepping 3]
(4 processors) [2] NVIDIA GeForce GTX 1080 Ti (4095MB) driver: 385.41 OpenCL: 1.2 Microsoft Windows 7
Professional x64 Edition, Service Pack 1, (06.01.7601.00


the link I gave you will calculate how much PSU you need. What are you currently running?
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Message 1895324 - Posted: 14 Oct 2017, 14:32:19 UTC - in response to Message 1895321.  

Primegrid, while I try to solve this issue.
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Message 1895325 - Posted: 14 Oct 2017, 14:34:41 UTC - in response to Message 1895324.  

I meant power source
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Miklos M.

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Message 1895327 - Posted: 14 Oct 2017, 14:40:07 UTC - in response to Message 1895325.  

sorry, do not know. Where is it said?
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Message 1895331 - Posted: 14 Oct 2017, 15:04:44 UTC - in response to Message 1895327.  

The PSU is inside the computer case. You would need to look at the powersource and see if you can see where it list the power output of the unit. Unfortunately, it is sometimes on the underside of the unit.

Just curious, did you build your computer or buy it from someone? I only ask as most builders will know what PSU they put in. If you bought it then I can understand why you might not know what it was. Either way, it's always a good thing to know what it is.
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Message 1895338 - Posted: 14 Oct 2017, 15:27:38 UTC - in response to Message 1895331.  

Thank you, it was built for me and I shall ask the computer person for that answer.
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Message 1895383 - Posted: 14 Oct 2017, 21:08:33 UTC - in response to Message 1895306.  

I wonder if I need to use a bigger power supply then when I had two 980ti's?

Both cards are rated at 250W.
However, if you were using the 980Ti before the SoG application was released, then then new GTX 1080Tis will be using more power than the older cards as the SoG application does considerably more work than the older CUDA application.
I'd suggest the bare minimum PSU (Power Supply Unit) for that system would be 750W, 850W would be a better choice. Actual maximum power usage when crunching Arecibo shorties would probably be around the 500W region.

The rating label for the PSU is usually visible when you remove the cover off of the side of the computer.
Grant
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Miklos M.

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Message 1895674 - Posted: 16 Oct 2017, 16:01:07 UTC
Last modified: 16 Oct 2017, 16:02:37 UTC

I did the following, but out of my two 1080ti's only one wants to work on SETI. What am I missing, please? Also, replaced the 750 power source with a 1000.
Thank you

open a notepad

copy the following

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

click save as

select location as follows local disk --> programdata (maybe hidden so you will need to unhide folder) --->BOINC

in file name type in cc_config.xml

in save as type change to all files (*.*)

now you can either restart boinc and it should read the file or you can tell BOINC to reread config files.

Check your event log and make sure you see that it found the cc_config.xml
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Message 1895691 - Posted: 16 Oct 2017, 17:02:56 UTC - in response to Message 1895674.  

Does the 1st few lines of the event log mention both GPUs? W/o the cc_config file edit it will mention the 2nd card but say its not allowed by config or something along those lines.
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Message 1895694 - Posted: 16 Oct 2017, 17:42:22 UTC - in response to Message 1895691.  
Last modified: 16 Oct 2017, 17:46:43 UTC

Just a very basic thought, I lost one of my video cards and did not know it until I saw only one working for SETI. Are you sure both cards are working?

/edit: Scratch that, it looks like SETI sees two cards.

SETI@home classic workunits 4,019
SETI@home classic CPU time 34,348 hours
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Miklos M.

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Message 1895705 - Posted: 16 Oct 2017, 18:44:58 UTC - in response to Message 1895691.  

Both gpu's work in Primegrid without a hitch. Also when I look at the info on the computer under the SETI project, both gpu's are listed.
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Message boards : Number crunching : 2 1080 ti's, but only one seems to work for SETI


 
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