Yes, delete the app_info file and restart Boinc.

Thank you skgiven & MrS - I'm crunching long runs again!

At present I doubt that you will get a significant improvement running two tasks...

I agree completely. I only ran 2 WUs at once with Paola 3EKO long runs. IMHO, every GPUGRID long run WU since has had high enough GPU utilization to justify dedicating the GPU (even a GTX 680) to it alone. And as you can probably tell, I'd really much rather leave my cruncher config alone, and let it do its thing :)

I have one Noelia finished in 147,962.58 seconds on a GTX550Ti with driver 314.7.
I have now two running one on the same card and one on the older GTX285 and is expected to exceed 40 hours.

---

Greetings from TJ

I have recently completed seven NOELIA tasks in an average of 69,589 seconds (19.3h) on my GTX 650 Ti GPUs, driver 314.22. CPU is AMD A10 5800K. Two more tasks are running with about 15h to go.

Going by that, and I know you both use W7, Johns GTX650Ti is 2.12 times as fast as TJ's GTX550Ti. Don't know the CPU usage on both systems though, and that's important.

---

FAQ's

HOW TO:
- Opt out of Beta Tests
- Ask for Help

Going by that, and I know you both use W7, Johns GTX650Ti is 2.12 times as fast as TJ's GTX550Ti. Don't know the CPU usage on both systems though, and that's important.

I use only x% of the CPU, so that 1 core is always free.
The GTX560Ti WU is using 0.49 CPU and the GTX285WU is using 0.571 CPU.
By the way, both are Vista driven.
My W7 has ATI cards which I will replace as soon as I have some money left by nVidia 680 or 690.

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Greetings from TJ

Computed already 9 units, no problems so far :), 42500 secs on (my new 24/7) 570 and 45000 on 560ti 448cores.

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DSKAG Austria Research Team: http://www.research.dskag.at

Going by that, and I know you both use W7, Johns GTX650Ti is 2.12 times as fast as TJ's GTX550Ti. Don't know the CPU usage on both systems though, and that's important.

My 3 650 TI GPUs are running 59,400 - 64,900 seconds/WU OCed. The 4 GTX 460s are unfortunately off to other projects until the NOELIAS go away, so I'm 3 for 7...

We are looking into it.

Noelia is not to blade. She is simply trying desperately to run some new science which uses a new algorithm within acemd. The others are not.

We absolutely needs this to run, but it is giving us problems it seems.

gdf

We are looking into it.

Noelia is not to blade. She is simply trying desperately to run some new science which uses a new algorithm within acemd. The others are not.

We absolutely needs this to run, but it is giving us problems it seems.
gdf

Since May 8th I have done 3 Noelia's which all finished without error. Only my GPU's are slow so it took almost 2 days to complete on WU. And I have seen other PC's that finish these Noelia's so it could be something of a driver, hardware, BOINC or the OS? So perhaps is the algorithm Noelia is using okay.
I don't mind to run these Noelia's especially if it is important for the project.

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Greetings from TJ

Ran a few Noelias recently on my 660 TI, no problems finishing them. Did have the issue with drivers crashing after suspending the wu. But just now I suspended the gpu to do some gaming and it didn't crash, odd.

Just finished my first Noella on a newly acquired 660TI. 10 hours to complete, no problems on Linux Mint, 127,800 credits. Will be rebooting to XP soon to see how they run there.

I have had one Noelia WU failure and 17 WU's complete successfully. For me that's a slightly higher success rate than with Nate's less challenging WU's. Though I would add that I dropped using another CPU core to improve their performances.

In many cases (but not all) the key to successfully crunching these WU's is using GPUGrid's recommended Boinc setup; set Boinc to use <100% of the CPU, allow the GPU to be used when the system is being used by the user, don't run multiple projects (as this results in apps being suspended to run other GPU apps).

WRT the task crashes, driver restarts sometimes result in the WU's crashing, so if people affected by this tried the registry change suggestion Nanoprobe made, we might have a quick-fix/work around.

The driver restarts are a generic driver issue seen in several versions of recent NVidia drivers. It effects other GPU projects and other non-Boinc applications. It's not down to GPUGrid or any other Boinc project to fix NVidia's drivers or OS problems. However, GPUGrid still has to use the drivers, OS's and Boinc.

I totally agree that these WU's are essential to GPUGrid. It's down to GPUGrid to facilitate running these WU's, and down to the crunchers to facilitate GPUgrid where possible; GPUGrid doesn't force Boinc configurations upon us, so crunchers need to make the recommended adjustments to improve performance.

The obvious and simplest solution as far as GPUGrid is concerned is to put Noelia's WU's into a different queue. Have Short, Long and Very Long queues, or just use the Beta queue. This would allow users with cards that can't run these WU's to opt out or in. Ideally the server would allocate tasks based on their success rates. Perhaps this can be done on a system and queue basis?

---

FAQ's

HOW TO:
- Opt out of Beta Tests
- Ask for Help

Problem for me: much too long, won't finish on time on my 470GTX. :(

185 hours and a deadline on Monday 13...

No problems at all for me with the Noelia's - 17 have gone through without a hitch - there again I am not overclocking my systems to their limit.

Not overclocking at all, but this is obviously not the point. :(

Problem for me: much too long, won't finish on time on my 470GTX. :(

185 hours and a deadline on Monday 13...

Your GTX 470 should be fast enough to complete a NOELIA_klebe workunit in time (about 12 hours).
It takes 10h45m ~ 11h45m to process them on my (slightly overclocked) GTX 480.
So the problem is at your end, try to restart your host, or try not to crunch any CPU tasks on your P4.

Thanks, but that will not help I'm afraid, this is apparently not a performance issue.

Just looked at my account, all previous Noelia WU ended in error this week.

Like this one:
Stderr output
<core_client_version>7.0.27</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
MDIO: cannot open file "restart.coor"
SIGSEGV: segmentation violation
Stack trace (12 frames):
../../projects/www.gpugrid.net/acemd.2868(boinc_catch_signal+0x4d)[0x56709d]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xf030)[0x7f775251c030]
/lib/x86_64-linux-gnu/libc.so.6(fwrite+0x34)[0x7f77517cf034]
../../projects/www.gpugrid.net/acemd.2868[0x47f9c7]
../../projects/www.gpugrid.net/acemd.2868[0x4813a0]
../../projects/www.gpugrid.net/acemd.2868[0x492d74]
../../projects/www.gpugrid.net/acemd.2868[0x47f18a]
../../projects/www.gpugrid.net/acemd.2868[0x422c27]
../../projects/www.gpugrid.net/acemd.2868[0x408c04]
../../projects/www.gpugrid.net/acemd.2868[0x407bc9]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd)[0x7f7751784ead]
../../projects/www.gpugrid.net/acemd.2868[0x407a39]

Exiting...

</stderr_txt>
]]>

I've upgraded to the latest Nvidia PAU driver in the Debian Wheezy packages, and of course, stopped CPU WU, restarted the PC (was up for 35 days).

So far, the current task shows some progress (10% after 02:25:00) even though the ETC remains at 12 and half hour. I keep you posted !


Edit: only uses up to 4% CPU, so this is really not the point, even for an old PIV.

Now, the very same WU that was in progress a couple of minutes ago also ended up in error.

Sorry, but have to stop the Noelia long runs, they all end up in error, for some of them pretty fast, for others after days......

There is a problem on some Linux operating systems; they want to take for ever to complete. I think it's the more recent versions of Linux that are impacted, but not all. It's possible there is something missing in the drivers or Linux that is preventing the correct use of the drivers; missing libraries.

If you consistently get SIGSEGV errors on Linux or these WU's are going to take hundreds of hours (go by the % complete) just abort them.

If anyone finds a fix, post it up.

---

FAQ's

HOW TO:
- Opt out of Beta Tests
- Ask for Help

Finished my first Noelia without errors on XP running a 660TI. Took about 35 minutes longer than the same card on Linux Mint