Message boards : Number crunching : pcDuino8uno - My cores are disappearing?!
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Profile Aaron

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Message 2258 - Posted: 28 May 2017, 4:59:49 UTC

Hi,

I started crunching Universe@Home with a pcDuino8uno yesterday. It's running ubuntu 14.04.

Here are the specs of the machine: http://www.linksprite.com/pcduino8-uno/

Here is the host data: http://universeathome.pl/universe/show_host_detail.php?hostid=81650

The CPU is an AllWinner H8 8-Core Cortex-A7. Long story short, BOINC initially recognized all 8 cores. Then it only recognized 6. Now it's only recognizing 4.

Has anyone experienced this before?

Here's the event log data:

Thu 01 Jan 1970 01:26:06 AM UTC | | Starting BOINC client version 7.2.42 for arm-unknown-linux-gnueabihf
Thu 01 Jan 1970 01:26:06 AM UTC | | log flags: file_xfer, sched_ops, task
Thu 01 Jan 1970 01:26:06 AM UTC | | Libraries: libcurl/7.35.0 OpenSSL/1.0.1i zlib/1.2.8 libidn/1.28 librtmp/2.3
Thu 01 Jan 1970 01:26:06 AM UTC | | Data directory: /var/lib/boinc-client
Thu 01 Jan 1970 01:26:06 AM UTC | | No usable GPUs found
Thu 01 Jan 1970 01:26:06 AM UTC | | Host name: linaro-alip
Thu 01 Jan 1970 01:26:06 AM UTC | | Processor: 8 ARM ARMv7 Processor rev 5 (v7l)
Thu 01 Jan 1970 01:26:06 AM UTC | | Processor features: swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt
Thu 01 Jan 1970 01:26:06 AM UTC | | OS: Linux: 3.4.39
Thu 01 Jan 1970 01:26:06 AM UTC | | Memory: 873.69 MB physical, 0 bytes virtual
Thu 01 Jan 1970 01:26:06 AM UTC | | Disk: 14.55 GB total, 12.00 GB free
Thu 01 Jan 1970 01:26:06 AM UTC | | Local time is UTC +0 hours
Thu 01 Jan 1970 01:26:06 AM UTC | | Config: GUI RPCs allowed from:
Thu 01 Jan 1970 01:26:06 AM UTC | Universe@Home | URL http://universeathome.pl/universe/; Computer ID not assigned yet; resource share 100
Thu 01 Jan 1970 01:26:06 AM UTC | | No general preferences found - using defaults
Thu 01 Jan 1970 01:26:06 AM UTC | | Reading preferences override file
Thu 01 Jan 1970 01:26:06 AM UTC | | Preferences:
Thu 01 Jan 1970 01:26:06 AM UTC | | max memory usage when active: 864.95MB
Thu 01 Jan 1970 01:26:06 AM UTC | | max memory usage when idle: 873.69MB
Thu 01 Jan 1970 01:26:06 AM UTC | | max disk usage: 11.90GB
Thu 01 Jan 1970 01:26:06 AM UTC | | suspend work if non-BOINC CPU load exceeds 90%
Thu 01 Jan 1970 01:26:06 AM UTC | | (to change preferences, visit a project web site or select Preferences in the Manager)
Thu 01 Jan 1970 01:26:06 AM UTC | | gui_rpc_auth.cfg is empty - no GUI RPC password protection
Thu 01 Jan 1970 01:26:06 AM UTC | | Not using a proxy
Thu 01 Jan 1970 01:30:04 AM UTC | | Running CPU benchmarks
Thu 01 Jan 1970 01:30:04 AM UTC | | Suspending computation - CPU benchmarks in progress
Thu 01 Jan 1970 01:30:35 AM UTC | | Benchmark results:
Thu 01 Jan 1970 01:30:35 AM UTC | | Number of CPUs: 8
Thu 01 Jan 1970 01:30:35 AM UTC | | 575 floating point MIPS (Whetstone) per CPU
Thu 01 Jan 1970 01:30:35 AM UTC | | 2349 integer MIPS (Dhrystone) per CPU
Thu 01 Jan 1970 01:30:36 AM UTC | | Resuming computation
Thu 01 Jan 1970 01:30:41 AM UTC | Universe@Home | Master file download succeeded
Thu 01 Jan 1970 01:30:46 AM UTC | | Number of usable CPUs has changed from 8 to 6.
Thu 01 Jan 1970 01:30:46 AM UTC | Universe@Home | Sending scheduler request: Requested by user.
Thu 01 Jan 1970 01:30:46 AM UTC | Universe@Home | Requesting new tasks for CPU
Thu 01 Jan 1970 01:30:49 AM UTC | Universe@Home | Scheduler request completed: got 8 new tasks
Thu 01 Jan 1970 01:30:49 AM UTC | Universe@Home | General prefs: from Universe@Home (last modified 01-Jan-1970 01:30:49)
Thu 01 Jan 1970 01:30:49 AM UTC | Universe@Home | Host location: none
Thu 01 Jan 1970 01:30:49 AM UTC | Universe@Home | General prefs: using your defaults
Thu 01 Jan 1970 01:30:49 AM UTC | | Reading preferences override file
Thu 01 Jan 1970 01:30:49 AM UTC | | Preferences:
Thu 01 Jan 1970 01:30:49 AM UTC | | max memory usage when active: 864.95MB
Thu 01 Jan 1970 01:30:49 AM UTC | | max memory usage when idle: 873.69MB
Thu 01 Jan 1970 01:30:49 AM UTC | | max disk usage: 11.90GB
Thu 01 Jan 1970 01:30:49 AM UTC | | suspend work if non-BOINC CPU load exceeds 90%
Thu 01 Jan 1970 01:30:49 AM UTC | | (to change preferences, visit a project web site or select Preferences in the Manager)
Thu 01 Jan 1970 01:30:51 AM UTC | Universe@Home | Started download of BHspin2_1_arm-unknown-linux-gnueabihf
Thu 01 Jan 1970 01:30:51 AM UTC | Universe@Home | Started download of jobbh2_1.0.xml
Thu 01 Jan 1970 01:30:53 AM UTC | Universe@Home | Finished download of jobbh2_1.0.xml
Thu 01 Jan 1970 01:30:53 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_885000
Thu 01 Jan 1970 01:30:54 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_885000
Thu 01 Jan 1970 01:30:54 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_56_20000_1-999999_20000
Thu 01 Jan 1970 01:30:55 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_56_20000_1-999999_20000
Thu 01 Jan 1970 01:30:55 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_940000
Thu 01 Jan 1970 01:30:56 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_940000
Thu 01 Jan 1970 01:30:56 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_945000
Thu 01 Jan 1970 01:30:57 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_945000
Thu 01 Jan 1970 01:30:57 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_580000
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Finished download of BHspin2_1_arm-unknown-linux-gnueabihf
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_580000
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_56_20000_1-999999_15000
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_735000
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_55_20000_1-999999_580000_0
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_55_20000_1-999999_885000_1
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_55_20000_1-999999_940000_1
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_55_20000_1-999999_945000_0
Thu 01 Jan 1970 01:30:58 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_56_20000_1-999999_20000_0
Thu 01 Jan 1970 01:31:00 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_56_20000_1-999999_15000
Thu 01 Jan 1970 01:31:00 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_735000
Thu 01 Jan 1970 01:31:00 AM UTC | Universe@Home | Started download of universe_bh2_160803_129_55_20000_1-999999_985000
Thu 01 Jan 1970 01:31:00 AM UTC | Universe@Home | Starting task universe_bh2_160803_129_56_20000_1-999999_15000_1
Thu 01 Jan 1970 01:31:02 AM UTC | Universe@Home | Finished download of universe_bh2_160803_129_55_20000_1-999999_985000
Thu 01 Jan 1970 01:34:07 AM UTC | | Running CPU benchmarks
Thu 01 Jan 1970 01:34:08 AM UTC | | Suspending computation - CPU benchmarks in progress
Thu 01 Jan 1970 01:34:39 AM UTC | | Benchmark results:
Thu 01 Jan 1970 01:34:39 AM UTC | | Number of CPUs: 6
Thu 01 Jan 1970 01:34:39 AM UTC | | 551 floating point MIPS (Whetstone) per CPU
Thu 01 Jan 1970 01:34:39 AM UTC | | 2283 integer MIPS (Dhrystone) per CPU
Thu 01 Jan 1970 01:34:40 AM UTC | | Resuming computation
Thu 01 Jan 1970 09:40:22 PM UTC | Universe@Home | update requested by user
Thu 01 Jan 1970 09:40:25 PM UTC | | Number of usable CPUs has changed from 6 to 4.
Thu 01 Jan 1970 09:40:25 PM UTC | Universe@Home | Sending scheduler request: Requested by user.
Thu 01 Jan 1970 09:40:25 PM UTC | Universe@Home | Requesting new tasks for CPU
Thu 01 Jan 1970 09:40:28 PM UTC | Universe@Home | Scheduler request completed: got 1 new tasks
Thu 01 Jan 1970 09:40:30 PM UTC | Universe@Home | Started download of universe_bh2_160803_130_7_20000_1-999999_15000
Thu 01 Jan 1970 09:40:31 PM UTC | Universe@Home | Finished download of universe_bh2_160803_130_7_20000_1-999999_15000
Thu 01 Jan 1970 09:45:57 PM UTC | | Running CPU benchmarks
Thu 01 Jan 1970 09:45:57 PM UTC | | Suspending computation - CPU benchmarks in progress
Thu 01 Jan 1970 09:46:29 PM UTC | | Benchmark results:
Thu 01 Jan 1970 09:46:29 PM UTC | | Number of CPUs: 4
Thu 01 Jan 1970 09:46:29 PM UTC | | 763 floating point MIPS (Whetstone) per CPU
Thu 01 Jan 1970 09:46:29 PM UTC | | 3072 integer MIPS (Dhrystone) per CPU
Thu 01 Jan 1970 09:46:30 PM UTC | | Resuming computation
Thu 01 Jan 1970 09:52:20 PM UTC | Universe@Home | General prefs: from Universe@Home (last modified 01-Jan-1970 21:52:20)
Thu 01 Jan 1970 09:52:20 PM UTC | Universe@Home | Host location: none
Thu 01 Jan 1970 09:52:20 PM UTC | Universe@Home | General prefs: using your defaults
Thu 01 Jan 1970 09:52:20 PM UTC | | Reading preferences override file
Thu 01 Jan 1970 09:52:20 PM UTC | | Preferences:
Thu 01 Jan 1970 09:52:20 PM UTC | | max memory usage when active: 873.69MB
Thu 01 Jan 1970 09:52:20 PM UTC | | max memory usage when idle: 873.69MB
Thu 01 Jan 1970 09:52:20 PM UTC | | max disk usage: 11.90GB
Thu 01 Jan 1970 09:52:20 PM UTC | | (to change preferences, visit a project web site or select Preferences in the Manager)
Thu 01 Jan 1970 09:52:25 PM UTC | | Running CPU benchmarks
Thu 01 Jan 1970 09:52:26 PM UTC | | Suspending computation - CPU benchmarks in progress
Thu 01 Jan 1970 09:52:56 PM UTC | | Benchmark results:
Thu 01 Jan 1970 09:52:56 PM UTC | | Number of CPUs: 4
Thu 01 Jan 1970 09:52:56 PM UTC | | 766 floating point MIPS (Whetstone) per CPU
Thu 01 Jan 1970 09:52:56 PM UTC | | 3086 integer MIPS (Dhrystone) per CPU
Thu 01 Jan 1970 09:52:57 PM UTC | | Resuming computation
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Profile Aaron

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Message 2259 - Posted: 30 May 2017, 19:18:00 UTC - in response to Message 2258.  

rebooted after some connection issues, and now it's crunching on all 8 cores (at least for now)... i'm lost... :'(
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mmonnin

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Message 2261 - Posted: 31 May 2017, 19:18:57 UTC - in response to Message 2259.  

rebooted after some connection issues, and now it's crunching on all 8 cores (at least for now)... i'm lost... :'(


Seems like a general BOINC thing vs a project error:

Thu 01 Jan 1970 09:40:25 PM UTC | | Number of usable CPUs has changed from 6 to 4.


Was the # of CPUs in BM changed by chance? Or memory/storage/etc limits hit by chance?
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Profile Aaron

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Message 2262 - Posted: 2 Jun 2017, 18:13:44 UTC - in response to Message 2261.  

Was the # of CPUs in BM changed by chance? Or memory/storage/etc limits hit by chance?


I adjusted my memory usage up to the maximum. I'm not sure if this corresponded with the decrease from 8 cores to 6 cores or not. But, when I did notice that it was only using 6 cores, I manually ran a benchmark to try to get back up to 8. I think this was when it dropped to 4 cores.
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JagDoc
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Message 2268 - Posted: 6 Jun 2017, 18:40:04 UTC - in response to Message 2262.  

You can solve this problem very easy:
Open with editor
/etc/boinc-client/cc_config.xml
and add (over last line) :

<options>
<ncpus>8</ncpus>
</options>


Save it and restart boinc and all 8 core run.
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Profile Aaron

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Message 2269 - Posted: 6 Jun 2017, 18:46:45 UTC - in response to Message 2268.  

Thank you very much, if it acts up again I'll give that a try.
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purplecfh

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Message 2351 - Posted: 5 Sep 2017, 21:49:47 UTC - in response to Message 2269.  

I don't think its a Boinc issue, if you did not install a heatsink or fan on the processor it will shut down 2 cores when it gets too hot, 2 more if it still getting hot, and will run 4 for extended periods of time no problem. Mine does the same thing, I have some generic heatsinks coming in from china and when they get here I'll let you know if it helps.
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purplecfh

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Message 2354 - Posted: 10 Sep 2017, 2:57:06 UTC - in response to Message 2351.  

After installing the heatsinks it would run all 8 cores for about 5 mins before shutting 4 cores down, so I went to the other extreme and hand built a case and added a 70mm fan it may have been overkill but all 8 cores are running now.
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Profile Aaron

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Message 2355 - Posted: 10 Sep 2017, 15:20:01 UTC - in response to Message 2354.  

Mine have always stayed pretty cool. They have heatsinks and also sit right in front of a fan. My fix was to edit the cc_config.xml file (see JagDoc's post above).
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Message boards : Number crunching : pcDuino8uno - My cores are disappearing?!




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