Posts by Karsten Vinding


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21) Message boards : Number crunching : Coming from Milkyway but SETI is BSOD'ing, help please. (Message 1227844)
Posted 817 days ago by Profile Karsten Vinding
On my FX8150 running Seti, I had a short period where the machine would randomly BSOD, and reboot itself, sometimes several times a day.

I run it at 4.5Ghz with 1.325Vcore with watercooling, on an ASUS Sabertooth 990FX.

For some time I messed around with voltages to the CPU, only to see heat increase, but not stability.

Increasing voltage to the ram didn't seem to help either.

I ended up increasing the voltage for the HTT & PCI-E busses one notch, and voila, the system was completely stable, and has been since. I havent had one crash for ~2 weeks.

So there are other places to look for stability, especially if you are pushing things a bit.
22) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226288)
Posted 819 days ago by Profile Karsten Vinding
Thanks.

"ps axf | grep AK" shows that the optimized clients are running on all 4 cores.

karsten@Ubuntu-server:~$ ps axf | grep AK
14085 pts/0 RNl+ 57:24 | \_ ../../projects/setiathome.berkeley.edu/AK_V8_linux64_sse3
14086 pts/0 RNl+ 22:55 | \_ ../../projects/setiathome.berkeley.edu/AK_V8_linux64_sse3
30593 pts/0 RNl+ 22:18 | \_ ../../projects/setiathome.berkeley.edu/AK_V8_linux64_sse3
31895 pts/0 RNl+ 19:41 | \_ ../../projects/setiathome.berkeley.edu/AK_V8_linux64_sse3

So all seems to be working. Work is also being reported back and even validated.

I also tried adding the crontab as root, will see if it works on next reboot.
23) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226267)
Posted 819 days ago by Profile Karsten Vinding
Do I have a problem in having installed BOINC as root?

It doesn't seem to want to run without me doing sudo -s, before launching it.

It works when done that way, but I cant see its task in the system monitor.

Got the optimized apps running, so that works.

When the repository version is reported working, I will install that, and use it instead of this hack-job install :)
24) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226264)
Posted 820 days ago by Profile Karsten Vinding
I actually got it to run now.

Reporting 7.0.26 in Boinc Manager.

Its crunching away on two AP WU's and DL'ing more.

And I have merged the computer with the old install, so its downloading the rest of the old WU's.

Now on to intalling optimized apps, and making it start on bootup. Hope I dont mess it up...
25) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226249)
Posted 820 days ago by Profile Karsten Vinding
John:

I did.

Do "sudo apt-get remove boinc-manager"
and "sudo apt-get remove boinc-client"

And the original repository install was uninstalled via the repository.

But I see your point about it being 7.0.24, but it should not be.

I will try one last time to install 7.0.26 on top of all this. If this fails I'm going to stop for now.
26) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226238)
Posted 820 days ago by Profile Karsten Vinding
Oh well, I give up.

Even though I followed the instructions and installed Boincs own 7.0.26 and not 7.0.24 from repository, I still get this:

http://setiathome.berkeley.edu/result.php?resultid=2418178646

http://setiathome.berkeley.edu/result.php?resultid=2417963293

Both AP and MB

Computer is this one, many many failed tasks...

http://setiathome.berkeley.edu/results.php?hostid=6637638

Luckily I got it stopped before it ruined all my allocated WU's.

I'll wait for this to get fixed properly!

But thanks for trying to help xclusive :)
27) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226220)
Posted 820 days ago by Profile Karsten Vinding
Seems to be running now...

At least Manager started, and is DL'ing files.

Will see if I get errors again.

How do I get it to autostart when Ubuntu boots?
28) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1226217)
Posted 820 days ago by Profile Karsten Vinding
Trying to install BOINC after your instructions (followed to the letter) I get the following when trying to launch boinc:

root@Ubuntu-server:~# sh /home/karsten/BOINC/run_manager
./boincmgr: error while loading shared libraries: libwx_gtk2u_html-2.8.so.0: cannot open shared object file: No such file or directory

So even manual install won't work. This is getting frustrating/tiresome...
29) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1225450)
Posted 821 days ago by Profile Karsten Vinding

That's because the minimum buffer of 10 days is also used as an indicator that the host may not connect to the internet for the next 10 days. So BOINC tries to get all tasks finished, uploaded, and reported that early.

Joe


OK. That makes sense (sort of).

What I dont understand is why it behaves this way now, when it didn't when I had the cache set to 10/10 in a desperate attempt to get work.
Back then nothing worked, no work was being requested, no work was being reported, no tasks was in high priority.
The high priority tasks was allready in the cache for the GPU back then.

I have gone down to 6/0.5 on my ATI host because I was hitting a 400 WU limit, and that wasn't enough for 10 days cache for the GPU.
So I was afraid the servers would still try to fill the GPU cache (because the client would still ask for work), but would not send much work because of that limit. And since they honored for the GPU first, the CPU would not get much work.

I havent tried if it works that way in reality, (a 6 days cache should be fine) but I wouldnt be surprised.
30) Message boards : Number crunching : Catalyst 12.4 and Lunatics 6.10 (ati13ati) (Message 1225382)
Posted 821 days ago by Profile Karsten Vinding
I will add that I am running 12.4 on one of my systems, and its working fine.

I even believe I'm seeing a little bit faster crunching times than with 12.3.
31) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1225372)
Posted 822 days ago by Profile Karsten Vinding
xclusive:

I have subscribed to the launchpad bug and told that "this bug also affects me".

I don't have anything to contribute with, but will keep an eye on the development, so I can react as soon as there is a fix.
32) Message boards : Number crunching : Boinc/seti wont run on my new Ubuntu setup. (Message 1225368)
Posted 822 days ago by Profile Karsten Vinding
Thanks.

Allready read and commented in that thread, and it wasn't much help anyway, since nobody seems to know whats wrong.

Hope work is going on behind the curtains to get it working.
33) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1225367)
Posted 822 days ago by Profile Karsten Vinding
Well setting 0.5/10 didn't really work out well.

But setting 10/0.5 in BM settings, seems to have helped.

All my computers are now requesting work like mad (except the Ubuntu one where seti won't work :( ).

A lot of my WU's have gone high priority (?), and every single WU thats finished seems to be uploaded and returned emidiatly. I don't see the large numbers of waiting to report that I had.

Off course the servers are not giving me any work, but at least the client asks for it now.

Why it behaves so differently now, I can't explain.
34) Message boards : Number crunching : Boinc 7.0.24/Ubuntu computation errors (Message 1225321)
Posted 822 days ago by Profile Karsten Vinding
How annoying.

I updated to Ubuntu 12.04.

The computer basically serves as a server for my Logitech Squeezebox, and crunches on the side.

And of course one of two things for which I actually use the computer, doesn't work :(

Hope they fix it fast.
35) Message boards : Number crunching : Boinc/seti wont run on my new Ubuntu setup. (Message 1225311)
Posted 822 days ago by Profile Karsten Vinding
I'm having big problems getting Boinc to work on updated Ubuntu 12.04.

I had it running fine on 11.10.

Boinc installs fine and I attach to Seti.

But all WU's end up erroring out with the following:

Stderr output

<core_client_version>7.0.24</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
Stack trace (11 frames):
/usr/bin/boinc(boinc_catch_signal+0x65)[0x48f675]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0)[0x7f235bf734c0]
/lib/x86_64-linux-gnu/libc.so.6(__strcat_chk+0x39)[0x7f235c043db9]
/usr/bin/boinc[0x412a34]
/usr/bin/boinc[0x412b00]
/usr/bin/boinc[0x43163d]
/usr/bin/boinc[0x431adb]
/usr/bin/boinc[0x41a728]
/usr/bin/boinc[0x4712a4]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f235bf5e76d]
/usr/bin/boinc[0x406a65]

</stderr_txt>

What is wrong, and how do I fix it?
36) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1224972)
Posted 822 days ago by Profile Karsten Vinding
Correct.

But then that isnt a 10 day cache, which I have told it to maintain... :)

So it should still be requesting work, and its not.
37) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1224960)
Posted 823 days ago by Profile Karsten Vinding
Well setting cache to 0,5/10 seems to have helped. I now have a large enough cache to last me for about 1 day and some hours.

Boinc reports that I have a 13 day cache, but thats not correct ( I have 119 Wu's + 2 AP, and I crunch ~4-5 WU's an hour (AP's takes ~ half a day)).

But anyway, if it fetches again before running out of work, I'll be more than happy.
38) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1224902)
Posted 823 days ago by Profile Karsten Vinding

It's a new policy called "hysteresis work fetch" - the plan being to request work less often, but in larger amounts.


OK, that sort of explains it.

So setting boinc to ask for work often, will work better because the downloads are normally having a hard time getting through.

I still don't understand why the decission was made to give the GPU preference in getting work, when the CPU is asking for a LOT more work than the GPU.

My computer is getting work now, but only for GPU. Meanwhile only 4 cores are crunching. If boinc had requested for CPU only, because it needs work the most, this problem wouldn't exist.

While I was writing this, the CPU finally got work, and I can see boinc has started 6 new tasks on the CPU, meaning it was down to crunching on 2 cores.

I still think something is wrong with the way this works.

Its not easy to setup when the system does the opposite of what you would expect.
39) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1224891)
Posted 823 days ago by Profile Karsten Vinding
Probably you need to readjust your preferences.
Your first setting is to high so boinc ask to late.
If you have 10 / 0.5 change to 0.5 / 10


I'll try that.

Why should it work? Shouldnt boinc try to keep work for 10 days anyway? Or does it somehow control how often it will ask for work?
40) Message boards : Number crunching : How does work fetch in 7.0.25 work? (Message 1224889)
Posted 823 days ago by Profile Karsten Vinding
Now something is happening:

My CPU finished one of its Wu's, and boinc reacted on this.

29-04-2012 15:20:38 | SETI@home | Reporting 1 completed tasks, requesting new tasks for CPU and ATI
29-04-2012 15:20:38 | SETI@home | [sched_op] CPU work request: 2744569.84 seconds; 0.00 devices
29-04-2012 15:20:38 | SETI@home | [sched_op] ATI work request: 82425.41 seconds; 0.00 devices
29-04-2012 15:20:42 | SETI@home | Scheduler request completed: got 7 new tasks

These 7 new tasks are all for the GPU, which has plenty of work. They are all stalled in download, meanwhile the CPU has finished one more WU, now only running on 6 cores. Boinc won't fetch as long as other WU's are downloading, and it could take some time to just get these 7 WU's downloaded.

This should not happen, with a cache thats supposed to be 10 days, or whatever max limit is set on number of WU's.....

Why hasn't boinc requested CPU work a long time ago?


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