BOINC / SETI@Home in Linux suddenly erratic


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Questions and Answers : Unix/Linux : BOINC / SETI@Home in Linux suddenly erratic

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mistergoodbytes1
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Joined: 13 May 10
Posts: 15
Credit: 1,027,165
RAC: 378
United States
Message 1420895 - Posted: 27 Sep 2013, 8:54:30 UTC

First, I do not know what to add as far as detail, so I'll add everything I can thing of. If more detail is required, I can provide.

I started using SETI@Home in Linux as of May 27, 2013. It has been working fine from that time until 2013-09-17. That day, and in the days which followed, 0 credits are showing, online, also with no change in stats in my BOINC client.

I tried a manual update as of 2013-09-25 and it updated with 104 work units, which is well below what should have happened in a whole week.

There are no units waiting to be uploaded on my side. My prefs are set to download up to 15 days of work, and there are plenty of units waiting to be processed on my side.

I note that a couple of units showed as "Error while computing" The detailed error looks like this:

<core_client_version>6.10.45</core_client_version>
<![CDATA[
<message>
Maximum elapsed time exceeded
</message>
<stderr_txt>
setiathome_v7 7.00 Revision: 1782 g++ (GCC) 4.4.1 20090725 (Red Hat 4.4.1-2)
libboinc: BOINC 7.1.0

Work Unit Info:
...............
WU true angle range is : 1.376897
Optimal function choices:
--------------------------------------------------------
name timing error
--------------------------------------------------------
v_BaseLineSmooth (no other)
v_vGetPowerSpectrumUnrolled2 0.000150 0.00000
v_ChirpData 0.012006 0.00000
v_vTranspose4x8ntw 0.256640 0.00000
AK SSE folding 0.000856 0.00000
Restarted at 0.11 percent.
Restarted at 0.47 percent.
Restarted at 0.84 percent.
Restarted at 2.53 percent.
Restarted at 4.84 percent.
Restarted at 5.45 percent.
Restarted at 5.94 percent.
Restarted at 6.35 percent.
Restarted at 6.69 percent.
Restarted at 6.99 percent.
Restarted at 7.35 percent.
Restarted at 7.80 percent.
Restarted at 8.17 percent.
Restarted at 8.52 percent.
Restarted at 8.86 percent.
Restarted at 9.24 percent.
Restarted at 9.54 percent.
Restarted at 9.93 percent.
Restarted at 10.21 percent.
Restarted at 10.51 percent.
Restarted at 10.87 percent.
Restarted at 11.26 percent.
Restarted at 11.65 percent.
Restarted at 12.07 percent.
Restarted at 12.49 percent.
Restarted at 12.86 percent.
Restarted at 13.28 percent.
Restarted at 13.68 percent.
Restarted at 14.03 percent.
Restarted at 14.53 percent.
Restarted at 14.94 percent.

</stderr_txt>
]]>

The BOINC client spec settings are as they have been for the past several months and consistent with my specs as before:

Suspend work while computer is on battery power?
Matters only for portable computers yes (this is a tower, so n/a)
Suspend work while computer is in use? no
Suspend GPU work while computer is in use?
Enforced by version 6.6.21+ yes
'In use' means mouse/keyboard activity in last 3 minutes
Suspend work if no mouse/keyboard activity in last
Needed to enter low-power mode on some computers --- minutes
Suspend work when non-BOINC CPU usage is above
0 means no restriction
Enforced by version 6.10.30+ 25%
Do work only between the hours of
No restriction if equal ---
Leave tasks in memory while suspended?
Suspended tasks will consume swap space if 'yes' no
Switch between tasks every
Recommended: 60 minutes 60 minutes
On multiprocessors, use at most 2 processors
On multiprocessors, use at most
Enforced by version 6.1+ 90% of the processors
Use at most
Can be used to reduce CPU heat 100% of CPU time
Disk and memory usage
Disk: use at most 2 GB
Disk: leave free at least
Values smaller than 0.001 are ignored 0.001 GB
Disk: use at most --- % of total
Tasks checkpoint to disk at most every 60 seconds
Swap space: use at most 75% of total
Memory: when computer is in use, use at most 10% of total
Memory: when computer is not in use, use at most 90% of total
Network usage
Maintain enough tasks to keep busy for at least
(max 10 days). 10 days
... and up to an additional 5 days
Confirm before connecting to Internet?
Matters only if you have a modem, ISDN or VPN connection no
Disconnect when done?
Matters only if you have a modem, ISDN or VPN connection no
Maximum download rate: --- Kbytes/sec
Maximum upload rate: --- Kbytes/sec
Use network only between the hours of ---
Transfer at most
Enforced by version 6.10.46+ --- Mbytes every --- days
Skip image file verification?
Check this ONLY if your Internet provider modifies image files (UMTS does this, for example). Skipping verification reduces the security of BOINC. no

I have not changed these settings recently. My computer usage pattern has not changed, so the SETI client is not shutting down for low resources, nor is there any indicator of 'suspended processing' whatsoever.

In the BOINC client I am showing as running SETI@Home v7 7.01

There were no changes (other than basic CentOS patches/updates) installed recently. I have not been playng with the BOINC software at all recently. The only add-on that I use for BOINC is 'boinctray' (which has been running since I got the Linux version running back on May 27th).

The acutal BOINC client appears to be not showing progress on a given work unit (elapsed time appears to count down only extremely rarely and time remaining keeps scrolling upward at approximately one second per second). So, the BOINC client itself seems to indicate that no real work is being done.

Anyone else suddenly having this issue with Linux based cleints?

mistergoodbytes1
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Joined: 13 May 10
Posts: 15
Credit: 1,027,165
RAC: 378
United States
Message 1420897 - Posted: 27 Sep 2013, 9:07:26 UTC - in response to Message 1420895.

One other screen of data I can provide regarding my computer spces and BOINC is this from the client:

Fri 27 Sep 2013 05:00:12 AM EDT||Starting BOINC client version 6.10.45 for i686-pc-linux-gnu
Fri 27 Sep 2013 05:00:12 AM EDT||log flags: file_xfer, sched_ops, task
Fri 27 Sep 2013 05:00:12 AM EDT||Libraries: libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
Fri 27 Sep 2013 05:00:12 AM EDT||Data directory: /var/lib/boinc
Fri 27 Sep 2013 05:00:13 AM EDT||Processor: 2 GenuineIntel Pentium(R) Dual-Core CPU E6300 @ 2.80GHz [Family 6 Model 23 Stepping 10]
Fri 27 Sep 2013 05:00:13 AM EDT||Processor: 2.00 MB cache
Fri 27 Sep 2013 05:00:13 AM EDT||Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsav
Fri 27 Sep 2013 05:00:13 AM EDT||OS: Linux: 2.6.32-358.18.1.el6.centos.plus.i686
Fri 27 Sep 2013 05:00:13 AM EDT||Memory: 3.71 GB physical, 3.84 GB virtual
Fri 27 Sep 2013 05:00:13 AM EDT||Disk: 49.22 GB total, 37.62 GB free
Fri 27 Sep 2013 05:00:13 AM EDT||Local time is UTC -4 hours
Fri 27 Sep 2013 05:00:13 AM EDT||No usable GPUs found
Fri 27 Sep 2013 05:00:13 AM EDT|SETI@home|URL http://setiathome.berkeley.edu/; Computer ID 7003211; resource share 100
Fri 27 Sep 2013 05:00:13 AM EDT|SETI@home|General prefs: from SETI@home (last modified 29-May-2013 23:46:14)
Fri 27 Sep 2013 05:00:13 AM EDT|SETI@home|Host location: none
Fri 27 Sep 2013 05:00:13 AM EDT|SETI@home|General prefs: using your defaults
Fri 27 Sep 2013 05:00:13 AM EDT||Reading preferences override file
Fri 27 Sep 2013 05:00:13 AM EDT||Preferences:
Fri 27 Sep 2013 05:00:13 AM EDT|| max memory usage when active: 379.50MB
Fri 27 Sep 2013 05:00:13 AM EDT|| max memory usage when idle: 3415.49MB
Fri 27 Sep 2013 05:00:13 AM EDT|| max disk usage: 0.02GB
Fri 27 Sep 2013 05:00:13 AM EDT|| max CPUs used: 1
Fri 27 Sep 2013 05:00:13 AM EDT|| don't use GPU while active
Fri 27 Sep 2013 05:00:13 AM EDT|| suspend work if non-BOINC CPU load exceeds 25 %
Fri 27 Sep 2013 05:00:13 AM EDT|| (to change, visit the web site of an attached project,
Fri 27 Sep 2013 05:00:13 AM EDT|| or click on Preferences)
Fri 27 Sep 2013 05:00:13 AM EDT||Not using a proxy
Fri 27 Sep 2013 05:00:13 AM EDT|SETI@home|Restarting task 09oc08ac.17161.15205.7.12.185_0 using setiathome_v7 version 701
Fri 27 Sep 2013 05:00:13 AM EDT||Already attached - deleting project_init.xml
Fri 27 Sep 2013 05:02:01 AM EDT||Already attached - deleting project_init.xml


ALSO, if you are directly involved in the BOINC/SETI@Home project, and you need additional specs, please feels free to email me and ask, glad to provide...I'm sure you can get my email address.

mistergoodbytes1
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Joined: 13 May 10
Posts: 15
Credit: 1,027,165
RAC: 378
United States
Message 1420898 - Posted: 27 Sep 2013, 9:15:15 UTC - in response to Message 1420897.

Also, someone mentioned this in another thread, so... as above, my prefs are to process work units regardless of idle state, limiting BOINC to 1 of 2 processors. This has never caused a suspend state in BOINC, nor do I see error messages suggesting suspended processing.

Profile Gundolf Jahn
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Joined: 19 Sep 00
Posts: 3184
Credit: 358,825
RAC: 35
Germany
Message 1420967 - Posted: 27 Sep 2013, 14:40:24 UTC - in response to Message 1420895.

There are no units waiting to be uploaded on my side. My prefs are set to download up to 15 days of work, and there are plenty of units waiting to be processed on my side.

15 days it a bit much. Try something like 3 plus 1 until all works well again.

Are you sure that the "plenty of units" are processed at all? The last reported task that still shows on your list was uploaded on 9 Sep 2013, 6:06:42 UTC.

I see that you still have set the default of 25% for "Suspend work when non-BOINC CPU usage is above". Try setting that to 0 (no restriction).

Another indication that something is wrong is the error message on the unsuccesful tasks: "Maximum elapsed time exceeded"
Are your tasks perhaps all waiting for a specific resource (see status column in Tasks tab)?

Did you reboot your host recently? Sometimes that helps with stuck tasks (even with linus hosts ;-).

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

SETI@home classic workunits 3,758
SETI@home classic CPU time 66,520 hours

Questions and Answers : Unix/Linux : BOINC / SETI@Home in Linux suddenly erratic

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