So, after the problems with the KASHIF work units, and coming in this mornign to find that three work units had all failed with a computation error, I decided to go ahead and upgrade to 6.6.28. Now the server won't give me any work saying I have no CUDA device. It's been running for a while now no problem, why this issue now? Any suggestions?

So, after the problems with the KASHIF work units, and coming in this mornign to find that three work units had all failed with a computation error, I decided to go ahead and upgrade to 6.6.28. Now the server won't give me any work saying I have no CUDA device. It's been running for a while now no problem, why this issue now? Any suggestions?

Thanks Paul. I'm gonna need a bit more help here (which is sad as I'm a professional scientist) but where is this opt/in opt/out setting. There's three preferences tabs (computing/gpugrid/computing) and in none of them do I see anything labeled opt-in or opt-out. Searching the pages for 'opt' isn't turning up anything, and when I look at my preferences it looks like the GPU should be available for computing. I'd like to get back to crunching since I've done nothing for the last almost 2 days due to a series of compute failures. Thanks.

It is in the computing preferences - http://www.gpugrid.net/prefs.php?subset=global. Paul is talking about the setting "Suspend GPU work while computer is in use?".
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Ok, Time Bandit helped me out as I was not clear ... sorry about that ... but that is only one possibility that leapt off the top of my pate...

Can you give us the top lines of the message tab from a fresh start of BONC?

It will look something like:

Fri May 22 16:58:11 2009 Starting BOINC client version 6.6.29 for x86_64-apple-darwin
Fri May 22 16:58:11 2009 Configured to use all coprocessors
Fri May 22 16:58:12 2009 log flags: task, file_xfer, sched_ops, cpu_sched, cpu_sched_debug, sched_op_debug
Fri May 22 16:58:12 2009 log flags: coproc_debug
Fri May 22 16:58:12 2009 Libraries: libcurl/7.19.4 OpenSSL/0.9.7l zlib/1.2.3 c-ares/1.6.0
Fri May 22 16:58:12 2009 Data directory: /Library/Application Support/BOINC Data
Fri May 22 16:58:12 2009 Milkyway@home Found app_info.xml; using anonymous platform
Fri May 22 16:58:12 2009 Processor: 8 GenuineIntel Intel(R) Xeon(R) CPU X5482 @ 3.20GHz [x86 Family 6 Model 23 Stepping 6]
Fri May 22 16:58:12 2009 Processor features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM SSE3 MON DSCPL VMX EST TM2 SSSE3 CX16 TPR PDCM SSE4.1
Fri May 22 16:58:12 2009 OS: Darwin: 9.7.0
Fri May 22 16:58:12 2009 Memory: 16.00 GB physical, 235.23 GB virtual
Fri May 22 16:58:12 2009 Disk: 453.32 GB total, 234.98 GB free
Fri May 22 16:58:12 2009 Local time is UTC -7 hours
Fri May 22 16:58:12 2009 Can't load library libcudart
Fri May 22 16:58:12 2009 No coprocessors
Fri May 22 16:58:13 2009 Not using a proxy

.... bunch of project lines her

Fri May 22 16:58:14 2009 World Community Grid Host location: none
Fri May 22 16:58:14 2009 World Community Grid General prefs: using your defaults
Fri May 22 16:58:14 2009 Preferences limit memory usage when active to 13107.20MB
Fri May 22 16:58:14 2009 Preferences limit memory usage when idle to 16056.32MB
Fri May 22 16:58:14 2009 Preferences limit disk usage to 200.00GB

No, I haven't changed anything else, just upgraded the BOINC client. I did notice however that after 4 tasks had failed due to a 'computation error' that new work hadn't been requested or given and it had been sitting idle. I have the same card and the same drivers. I even reinstalled the drivers from NVidia's website (no CD for this computer) but no change. Per the requested I'm pasting the error messages below.

5/23/2009 12:59:42 PM Starting BOINC client version 6.6.28 for windows_intelx86
5/23/2009 12:59:42 PM log flags: task, file_xfer, sched_ops
5/23/2009 12:59:42 PM Libraries: libcurl/7.19.4 OpenSSL/0.9.8j zlib/1.2.3
5/23/2009 12:59:42 PM Data directory: C:\Documents and Settings\All Users\Application Data\BOINC
5/23/2009 12:59:42 PM Running under account anthonmg
5/23/2009 12:59:42 PM Processor: 8 GenuineIntel Intel(R) Xeon(R) CPU E5440 @ 2.83GHz [x86 Family 6 Model 23 Stepping 6]
5/23/2009 12:59:42 PM Processor features: fpu tsc pae nx sse sse2 mmx
5/23/2009 12:59:42 PM OS: Microsoft Windows XP: Professional x86 Edition, Service Pack 3, (05.01.2600.00)
5/23/2009 12:59:42 PM Memory: 3.25 GB physical, 5.09 GB virtual
5/23/2009 12:59:42 PM Disk: 465.74 GB total, 394.19 GB free
5/23/2009 12:59:42 PM Local time is UTC -7 hours
5/23/2009 12:59:42 PM No CUDA devices found
5/23/2009 12:59:42 PM No coprocessors
5/23/2009 12:59:42 PM Not using a proxy
5/23/2009 12:59:42 PM Docking@Home URL: http://docking.cis.udel.edu/; Computer ID: 26200; location: (none); project prefs: default
5/23/2009 12:59:42 PM GPUGRID URL: http://www.gpugrid.net/; Computer ID: 32550; location: (none); project prefs: default
5/23/2009 12:59:42 PM GPUGRID General prefs: from GPUGRID (last modified 23-May-2009 00:54:35)
5/23/2009 12:59:42 PM GPUGRID Host location: none
5/23/2009 12:59:42 PM GPUGRID General prefs: using your defaults
5/23/2009 12:59:42 PM Preferences limit memory usage when active to 1663.63MB
5/23/2009 12:59:42 PM Preferences limit memory usage when idle to 2994.54MB
5/23/2009 12:59:42 PM Preferences limit disk usage to 100.00GB
5/23/2009 1:00:03 PM GPUGRID update requested by user
5/23/2009 1:00:07 PM GPUGRID Sending scheduler request: Requested by user.
5/23/2009 1:00:07 PM GPUGRID Requesting new tasks
5/23/2009 1:00:12 PM GPUGRID Scheduler request completed: got 0 new tasks
5/23/2009 1:00:12 PM GPUGRID Message from server: No work sent
5/23/2009 1:00:12 PM GPUGRID Message from server: Can't use CUDA app for Full-atom molecular dynamics: Your computer has no CUDA device
5/23/2009 1:00:12 PM GPUGRID Message from server: Full-atom molecular dynamics on Cell processor is not available for your type of computer.
5/23/2009 1:01:47 PM GPUGRID Sending scheduler request: To fetch work.
5/23/2009 1:01:48 PM GPUGRID Requesting new tasks
5/23/2009 1:01:53 PM GPUGRID Scheduler request completed: got 0 new tasks
5/23/2009 1:01:53 PM GPUGRID Message from server: No work sent
5/23/2009 1:01:53 PM GPUGRID Message from server: Can't use CUDA app for Full-atom molecular dynamics: Your computer has no CUDA device
5/23/2009 1:01:53 PM GPUGRID Message from server: Full-atom molecular dynamics on Cell processor is not available for your type of computer.
5/23/2009 1:02:28 PM GPUGRID Sending scheduler request: To fetch work.
5/23/2009 1:02:28 PM GPUGRID Requesting new tasks
5/23/2009 1:02:33 PM GPUGRID Scheduler request completed: got 0 new tasks
5/23/2009 1:02:33 PM GPUGRID Message from server: No work sent
5/23/2009 1:02:33 PM GPUGRID Message from server: Can't use CUDA app for Full-atom molecular dynamics: Your computer has no CUDA device
5/23/2009 1:02:33 PM GPUGRID Message from server: Full-atom molecular dynamics on Cell processor is not available for your type of computer.

Also, should say the the driver version is 6.14.11.8265. Just a month old.

Have you already tried to reinstall the drivers?
Somehow BOINC can't find a CUDA device...

5/23/2009 12:59:42 PM No CUDA devices found
5/23/2009 12:59:42 PM No coprocessors

Um, yes, I can tell from the messages that it can't find the device. When I first joined the project in early April Boinc was unable to find a CUDA device. I upgraded the drivers from the ones that came with the machine when I got it last September. With that update, 182.46, everything worked fine and I've been crunching away.

Then, lots of timed out workunits, never ending workunits. I was told to upgrade BOINC. Since then, no CUDA found. I just upgraded again to 182.65, didnt' help. Tried reinstalling the original drivers, 182.46, and 182.65, no success.

I don't know why, but it sure does not see the CUDA device. And I am stumped as to what to try next.

Are you running any sort of remote login or remote desktop?

{edit}
Virtualization software , alternative OS hosting?

Hmm, today it started working again on its own. Argh. Ok, well, will watch and see if I get errors of if ti runs smoothly again. Thanks everyone for your input.

Well, it's getting work, but ALL the work units seem to be failing after only a few seconds (<10-20 sec). Are we having more workunit problems?

Interesting about the emulation mode and that it wasn't a problem before. Can you say where in the advanced tab this setting is? I don't see it under any of the subheadings in the advanced menus. Are you suggesting I find the config file and change it at the level of the text? Is unproected mode going to affect the stability of the system?

Interesting about the emulation mode and that it wasn't a problem before. Can you say where in the advanced tab this setting is? I don't see it under any of the subheadings in the advanced menus. Are you suggesting I find the config file and change it at the level of the text? Is unproected mode going to affect the stability of the system?

The repair utility doesn't give you access there. I uninstalled and reinstalled. The option to run in protected mode (an unpriveldged account) was already unchecked, so it seems like that's not the issue.

Also, still getting the, "Project has no work" error when I try to update and fetch new work.

The repair utility doesn't give you access there. I uninstalled and reinstalled. The option to run in protected mode (an unpriveldged account) was already unchecked, so it seems like that's not the issue.

Also, still getting the, "Project has no work" error when I try to update and fetch new work.

Ok, the server just let me have a workunit. They take 17-22 hours each (despite the large number of shaders on my card) so it'll be a while before I'm 'redeemed' but so far it's running smoothly.

Thanks for the comments about virtualized. I didn't realize that was a problem. I had to be away from the machine with the good graphics card and was doing some work on it using remote desktop connection. Looks like there's no way to 'unvirtualize' the machine until I've logged back in to it from sitting in front of it. Strange that it only came up now after having run remote desktop successfuly since I signed up for GPUgrid. Well, at least it's running even though it's likely my RAC won't recover from this for a long time to come.

Cool ...

Ok, if you need remote access you CAN use one of the many varieties of VNC to get there from here. Almost all versions of MS Remote Desktop and some other remoting software all will virtualize the GPU and once done, as you noted, is not easily undone.

thanks for the note about VNC. I'd have to install it across too many different computers just to be able to support this one card on this one project. Unforutnately the time and resource required to continue to participate is getting a little high. Remote Desktop didn't cause problems for the first few months I was on the project so it's weird to see it happening now. Maybe earlier BOINC versions just paused it or something, I don't know. At this point I think it's best to detach from the project.

thanks for the note about VNC. I'd have to install it across too many different computers just to be able to support this one card on this one project. Unforutnately the time and resource required to continue to participate is getting a little high. Remote Desktop didn't cause problems for the first few months I was on the project so it's weird to see it happening now. Maybe earlier BOINC versions just paused it or something, I don't know. At this point I think it's best to detach from the project.