help: New Quad core PC with GTX460

Message boards : Number crunching : help: New Quad core PC with GTX460
Message board moderation

To post messages, you must log in.

1 · 2 · Next

AuthorMessage
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094082 - Posted: 6 Apr 2011, 21:12:07 UTC

Hi, just got a new PC, a 4Gb Quad Core AMD II x4 with a Nvidia GTX460

I down loaded BOINC, installed it, then attached to SETI, SETI download the core apps and stuff. When finished I then installed the latest Lunatics Unified Installer from his site selecing X64 plus the Cuda option

Now on my other Quad core (No GPU) I see in task view 4 tasks each being worked on at the same time (Same with my dual core) but on the new PC only 1 tasks is running and it's just using the lunaticCuda app and in tasks view it show for the only running task 0.04CPU + 1 NVIDA GPU

IS this correct or should the apps be running on 4 CPU's plus the GPU?

Any help would be great.
ID: 1094082 · Report as offensive
Profile Gundolf Jahn

Send message
Joined: 19 Sep 00
Posts: 3184
Credit: 446,358
RAC: 0
Germany
Message 1094085 - Posted: 6 Apr 2011, 21:21:28 UTC - in response to Message 1094082.  

All the CPU tasks on that host error out with:
Incorrect function. (0x1) - exit code 1 (0x1)

Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)

SETI@home classic workunits 3,758
SETI@home classic CPU time 66,520 hours
ID: 1094085 · Report as offensive
Claggy
Volunteer tester

Send message
Joined: 5 Jul 99
Posts: 4654
Credit: 47,537,079
RAC: 4
United Kingdom
Message 1094091 - Posted: 6 Apr 2011, 21:37:32 UTC - in response to Message 1094082.  

Which CPU MB app did you install?

Claggy
ID: 1094091 · Report as offensive
Profile Jim Wright

Send message
Joined: 3 Sep 99
Posts: 36
Credit: 54,761,763
RAC: 17
United States
Message 1094092 - Posted: 6 Apr 2011, 21:41:39 UTC

I have a AMD Phenom(tm) II X6 1055T Processor plus NVIDIA GeForce GTX 465. The tasks page shows six tasks running simultaneously plus "0.67 CPUs+ 1.00 NVIDIA GPU". Check the Advanced/Preferences/Processor Usage tab and the percent to be used on multi processor systems. Set it to 100%. Also check your computing preferences at set@home.

I do have an observation that may need some fixing:

Workunit delivery on such a system seems to be severely constrained. I get only about as much work as can be processed in 24 hours rather than the three days I specified in my Computing Preferences. The amount of work delivered is insufficient to keep the machine busy over any extended (24 hours plus) outage.

It seems that a count of all workunits (both cuda and non-cuda) delivered and stored on my system is the constraining measure used whereas there should be separate totals maintained for non-cuda and cuda workunits. I'm seeing 7-8 hours each for non-cuda workunits and 15-20 MINUTES each for cuda workunits.

Therefore I would need 72 non-cuda workunits available to cover a 3 day outage. AND ALSO ... 288 cuda workunits to keep the cuda processors busy during the same 3 days.

When long Seti@home outages occur, I have to do work from other sites just to keep the machines busy. Luckily, Einstein@home is also of interest to me.

Jim Wright
ID: 1094092 · Report as offensive
Profile Fred J. Verster
Volunteer tester
Avatar

Send message
Joined: 21 Apr 04
Posts: 3252
Credit: 31,903,643
RAC: 0
Netherlands
Message 1094105 - Posted: 6 Apr 2011, 22:08:47 UTC - in response to Message 1094092.  
Last modified: 6 Apr 2011, 22:18:45 UTC

Yeah, but the problem is your C.P.U. as you can clearly see here
Results .

Or is this your host?

Use the UNIFIED Installer V0.37 from the LUNATICs.
Lunatics.

And GPUz, also CPUz gives usefull info about your CPU & GPU.
ID: 1094105 · Report as offensive
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094142 - Posted: 7 Apr 2011, 1:15:22 UTC

Yes, my PC is http://setiathome.berkeley.edu/show_host_detail.php?hostid=5883516

I can now see clearly that something is wrong with the CPU from your help.

I used Lunitics latest 037 installer. Unchecked AP but selected AMD SSE3 and also the CUDA during the installer. Done this twice before origianlly posting in case I had done it incorrectly.

At least I know that it just does not work one one WU at a time but should be one per CPU/GPU

The app_info.xml is the one from the lunatic package,I'll check it all over again to see what is what.

thanks
ID: 1094142 · Report as offensive
Grant (SSSF)
Volunteer tester

Send message
Joined: 19 Aug 99
Posts: 13736
Credit: 208,696,464
RAC: 304
Australia
Message 1094217 - Posted: 7 Apr 2011, 6:01:55 UTC - in response to Message 1094092.  

Workunit delivery on such a system seems to be severely constrained. I get only about as much work as can be processed in 24 hours rather than the three days I specified in my Computing Preferences. The amount of work delivered is insufficient to keep the machine busy over any extended (24 hours plus) outage.

It seems that a count of all workunits (both cuda and non-cuda) delivered and stored on my system is the constraining measure used whereas there should be separate totals maintained for non-cuda and cuda workunits. I'm seeing 7-8 hours each for non-cuda workunits and 15-20 MINUTES each for cuda workunits.

Did you manually derive & enter the FLOPS value in to the app_info file?
If not, that's probably why your cache won't fill up due to the Result Duration Correction Factor going all over the place.

Even with that value set, when i've 4 days of CPU work it's about 3.75 days of GPU work.
Grant
Darwin NT
ID: 1094217 · Report as offensive
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094275 - Posted: 7 Apr 2011, 12:57:11 UTC - in response to Message 1094217.  


Did you manually derive & enter the FLOPS value in to the app_info file?
If not, that's probably why your cache won't fill up due to the Result Duration Correction Factor going all over the place.

Even with that value set, when i've 4 days of CPU work it's about 3.75 days of GPU work.


Sorry, I do not understand anything about FLOPS etc. Could you explain more please about FLOPS.

Also, how do I know that the GTX460 isbeing maxed out or not as the cuda app is running but the GPU temp is constant at 68Deg C which suggests that it's not working to capacity. It this right?


Thanks.

Ps
I have now got the CPU's to crunch, I changed the app_info.xml file to make sure the CPU were poiniting to the corrct application AK_v8b_win_x64_SSE3 as for some reason they were pointing to a different application that did not exist.


ID: 1094275 · Report as offensive
Profile HAL9000
Volunteer tester
Avatar

Send message
Joined: 11 Sep 99
Posts: 6534
Credit: 196,805,888
RAC: 57
United States
Message 1094281 - Posted: 7 Apr 2011, 13:13:17 UTC - in response to Message 1094275.  


Did you manually derive & enter the FLOPS value in to the app_info file?
If not, that's probably why your cache won't fill up due to the Result Duration Correction Factor going all over the place.

Even with that value set, when i've 4 days of CPU work it's about 3.75 days of GPU work.


Sorry, I do not understand anything about FLOPS etc. Could you explain more please about FLOPS.

Also, how do I know that the GTX460 isbeing maxed out or not as the cuda app is running but the GPU temp is constant at 68Deg C which suggests that it's not working to capacity. It this right?


Thanks.

Ps
I have now got the CPU's to crunch, I changed the app_info.xml file to make sure the CPU were poiniting to the corrct application AK_v8b_win_x64_SSE3 as for some reason they were pointing to a different application that did not exist.


I believe you should be using "AK_v8b_win_SSE3_AMD.exe". As the 64-bit lunatics installer indicates "SSE3_AMD (x86, faster on sse3 amd)".
SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[
ID: 1094281 · Report as offensive
Grant (SSSF)
Volunteer tester

Send message
Joined: 19 Aug 99
Posts: 13736
Credit: 208,696,464
RAC: 304
Australia
Message 1094401 - Posted: 7 Apr 2011, 18:47:59 UTC - in response to Message 1094275.  

Sorry, I do not understand anything about FLOPS etc. Could you explain more please about FLOPS.

Someone else could explain it better than i can, roughly the difference in processsing ability between the CPU & GPU causes the Result Duration Correction Factor (RDCF) to move all over the place (it is used when determining how much work to download to maintain the cache setting).
By entering a FLOPS (Floating Operations Per Second) value in the app_info file you're giving a reference that helps keep the RDCF for the CPU & GPU very close to each other.
That allows the system to actually download enough work to maintain your cache setting.

NB- make sure to finish of all your current work before setting the FLOPS value, otherwise all existing work will error out.
Info on FLOPS value

Also, how do I know that the GTX460 isbeing maxed out or not as the cuda app is running but the GPU temp is constant at 68Deg C which suggests that it's not working to capacity. It this right?

GPUZ will show you how hard the GPU is working.
On my GTX460, i set the app_info value so that the video card runs 2 WUs at the same time, resulting in the GPU loading being around 96%.
Grant
Darwin NT
ID: 1094401 · Report as offensive
Richard Haselgrove Project Donor
Volunteer tester

Send message
Joined: 4 Jul 99
Posts: 14650
Credit: 200,643,578
RAC: 874
United Kingdom
Message 1094424 - Posted: 7 Apr 2011, 19:18:46 UTC - in response to Message 1094401.  

Someone else could explain it better than i can, roughly the difference in processsing ability between the CPU & GPU causes the Result Duration Correction Factor (RDCF) to move all over the place (it is used when determining how much work to download to maintain the cache setting).
By entering a FLOPS (Floating Operations Per Second) value in the app_info file you're giving a reference that helps keep the RDCF for the CPU & GPU very close to each other.
That allows the system to actually download enough work to maintain your cache setting.

That's actually very old advice, dating back to before the new server-based DCF adjustments were introduced in June 2010. For most users, and general purposes, I'd just forget flops nowadays, and let the server handle it.

Don't set your cache too high on a new host until after ten tasks on each type have validated, and you should be fine.
ID: 1094424 · Report as offensive
Profile Jim Wright

Send message
Joined: 3 Sep 99
Posts: 36
Credit: 54,761,763
RAC: 17
United States
Message 1094559 - Posted: 8 Apr 2011, 3:14:44 UTC - in response to Message 1094281.  

??? I cannot locate the app_info.xml file on my Windows 7 system. Where is it?

Thanks
ID: 1094559 · Report as offensive
OzzFan Crowdfunding Project Donor*Special Project $75 donorSpecial Project $250 donor
Volunteer tester
Avatar

Send message
Joined: 9 Apr 02
Posts: 15691
Credit: 84,761,841
RAC: 28
United States
Message 1094570 - Posted: 8 Apr 2011, 3:46:02 UTC - in response to Message 1094559.  

You will only have an app_info.xml file if you're using optimized applications.

If you are, the location varies depending on which OS you're using.

Windows 2000/XP:
C:\Documents and Settings\Application Data\BOINC\projects\setiathome.berkeley.edu

Windows Vista/7:
C:\ProgramData\BOINC\projects\setiathome.berkeley.edu

Note that the "Application Data" and "ProgramData" folders are hidden by default. If you type them into the Windows Explorer address bar, you can still navigate to them without having to fiddle with your hide/unhide settings.
ID: 1094570 · Report as offensive
Grant (SSSF)
Volunteer tester

Send message
Joined: 19 Aug 99
Posts: 13736
Credit: 208,696,464
RAC: 304
Australia
Message 1094583 - Posted: 8 Apr 2011, 4:44:39 UTC - in response to Message 1094424.  
Last modified: 8 Apr 2011, 4:46:13 UTC

Someone else could explain it better than i can, roughly the difference in processsing ability between the CPU & GPU causes the Result Duration Correction Factor (RDCF) to move all over the place (it is used when determining how much work to download to maintain the cache setting).
By entering a FLOPS (Floating Operations Per Second) value in the app_info file you're giving a reference that helps keep the RDCF for the CPU & GPU very close to each other.
That allows the system to actually download enough work to maintain your cache setting.

That's actually very old advice, dating back to before the new server-based DCF adjustments were introduced in June 2010. For most users, and general purposes, I'd just forget flops nowadays, and let the server handle it.

Don't set your cache too high on a new host until after ten tasks on each type have validated, and you should be fine.

Ah, i've always had a 4 day cache.
When i got my new system i installed BOINC, then used the Lunatics installer to install the optimised apps, then connected to the net & Seti. Even after a day or so the RDCF was going up & down like a yoyo with no end in sight, that's when i manually entered the FLOPS value.
Grant
Darwin NT
ID: 1094583 · Report as offensive
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094621 - Posted: 8 Apr 2011, 7:53:58 UTC - in response to Message 1094281.  


I believe you should be using "AK_v8b_win_SSE3_AMD.exe". As the 64-bit lunatics installer indicates "SSE3_AMD (x86, faster on sse3 amd)".


Do you mean I would be better off running the x86 app instead of the x64 app on my x64 Win7 system?



ID: 1094621 · Report as offensive
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094622 - Posted: 8 Apr 2011, 8:00:59 UTC - in response to Message 1094401.  

[quote
GPUZ will show you how hard the GPU is working.
On my GTX460, i set the app_info value so that the video card runs 2 WUs at the same time, resulting in the GPU loading being around 96%.[/quote]

OK, GPUZ shows an average of 65% loading over the course of an hours worth of SETI GPU crunching with an average temp of 68Deg c.

What is the app_info for 2 WU at the same time please.



Is there an actual page some where showing what tweaks can be made to app_info etc as I remember one to increase the number of days to show your graph stats over.

Thanks
ID: 1094622 · Report as offensive
Profile Gundolf Jahn

Send message
Joined: 19 Sep 00
Posts: 3184
Credit: 446,358
RAC: 0
Germany
Message 1094629 - Posted: 8 Apr 2011, 8:45:25 UTC - in response to Message 1094622.  

Is there an actual page some where showing what tweaks can be made to app_info etc as I remember one to increase the number of days to show your graph stats over.

That is in the cc_config.xml, not the app_info.xml. ;-)

For running two tasks concurrently on your GPU, you'll have to go anonymous platform, which prevents your computers from downloading the newest version of the stock application on its own.

There have been several threads around on that topic recently.

Gruß,
Gundolf
ID: 1094629 · Report as offensive
Profile Sean Arrowsmith

Send message
Joined: 17 Feb 01
Posts: 34
Credit: 4,955,471
RAC: 0
United Kingdom
Message 1094631 - Posted: 8 Apr 2011, 8:55:15 UTC - in response to Message 1094629.  


That is in the cc_config.xml, not the app_info.xml. ;-)


That's me being a dumb. Thanks


For running two tasks concurrently on your GPU, you'll have to go anonymous platform, which prevents your computers from downloading the newest version of the stock application on its own.

There have been several threads around on that topic recently.

Gruß,
Gundolf


I am on anonymous as running lunatic 0.37

ID: 1094631 · Report as offensive
Profile perryjay
Volunteer tester
Avatar

Send message
Joined: 20 Aug 02
Posts: 3377
Credit: 20,676,751
RAC: 0
United States
Message 1094689 - Posted: 8 Apr 2011, 13:55:33 UTC - in response to Message 1094631.  
Last modified: 8 Apr 2011, 13:58:01 UTC

Sean,
Go into your app_info and find every instance where it says <count> To run two units at a time change it to .5 if you can run three units at a time change it to .33. In 64 bit I believe the installer put in six instances of <count> so you would have to change all of them.

This is what one of mine looks like...
<coproc>
<type>CUDA</type>
<count>.5</count>
</coproc>


edit: The normal caveats apply.. shut down SETI and BOINC first before making any changes to app_info. Use notepad to make changes ect.


PROUD MEMBER OF Team Starfire World BOINC
ID: 1094689 · Report as offensive
Profile HAL9000
Volunteer tester
Avatar

Send message
Joined: 11 Sep 99
Posts: 6534
Credit: 196,805,888
RAC: 57
United States
Message 1094822 - Posted: 8 Apr 2011, 18:44:02 UTC - in response to Message 1094621.  


I believe you should be using "AK_v8b_win_SSE3_AMD.exe". As the 64-bit lunatics installer indicates "SSE3_AMD (x86, faster on sse3 amd)".


Do you mean I would be better off running the x86 app instead of the x64 app on my x64 Win7 system?


That is what the Lunatics guys put in the .37 installer GUI. Since they developed the software I would guess they know what they are doing.
SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[
ID: 1094822 · Report as offensive
1 · 2 · Next

Message boards : Number crunching : help: New Quad core PC with GTX460


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.