1) Message boards : Number crunching : NOELIAs are back! (Message 29861)
Posted 3974 days ago by [AF>Le_Pommier] McRoger
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.


I'm running Debian Wheezy, so yes, a very recent version of kernel, drivers and libraries.

And if I want to install « glibc-2.13-1 » (containing libpthread.so.0 mentioned in the error message), apt tells me that « libc6 » is already installed instead.

So yes indeed, might be that this is a choice of library to compile the Linux application that is not compatible with latest versions (but I'm no developer, so that is just an assumption).
2) Message boards : Number crunching : NOELIAs are back! (Message 29856)
Posted 3974 days ago by [AF>Le_Pommier] McRoger
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......
3) Message boards : Number crunching : NOELIAs are back! (Message 29855)
Posted 3974 days ago by [AF>Le_Pommier] McRoger
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.
4) Message boards : Number crunching : NOELIAs are back! (Message 29852)
Posted 3974 days ago by [AF>Le_Pommier] McRoger
Not overclocking at all, but this is obviously not the point. :(
5) Message boards : Number crunching : NOELIAs are back! (Message 29849)
Posted 3974 days ago by [AF>Le_Pommier] McRoger
Problem for me: much too long, won't finish on time on my 470GTX. :(

185 hours and a deadline on Monday 13...

6) Message boards : Wish list : Linux x86 Application (Message 9188)
Posted 5445 days ago by [AF>Le_Pommier] McRoger
And there are still old CPU machines in the Boinc community (w/o EM64T like -edit: most PIV and Coreduo - edit: not to mix up with the Core2duo) which could crunch their share with a fairly recent GPU.
7) Message boards : Wish list : Mac Intel - OS X support (Message 9187)
Posted 5445 days ago by [AF>Le_Pommier] McRoger
Up !

GTX285 coming for Mac Pro's in June. :-)
8) Message boards : Graphics cards (GPUs) : Application 6.45 for Windows (Message 2419)
Posted 5672 days ago by [AF>Le_Pommier] McRoger
Do you have any screensaver activated or simply a "blank screen" ?

Are the cards "really" identical ? SP (shaders), frequency matters more than the GPU frequency for GPUgrid.
You can check that with GPU-Z .

edit: spelling
9) Message boards : Graphics cards (GPUs) : Application 6.45 for Windows (Message 2390)
Posted 5672 days ago by [AF>Le_Pommier] McRoger
To add my 2 cents, I also encounter slowdown with 6.45 with a 9800 GT on XP32 (PIV HT 3.00):

Previously with 6.43 around 57k sec, example1

Now with 6.45 around 66k seconds:
- example2
- example3

In the meantime I increased slightly the overclocking, thus the real loss for a defined set of frequencies is somewhat higher.

Hope this helps.

McRoger

Edit: tests done with a machine 100% dedicated to GPUGRID
10) Message boards : Graphics cards (GPUs) : Application 6.45 for Windows (Message 2320)
Posted 5675 days ago by [AF>Le_Pommier] McRoger
Thanks, just downloaded a wu to be crunched with 6.45.


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