problems keeping system crunching on all 4 cpu's

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Message 1165279 - Posted: 25 Oct 2011, 12:28:43 UTC

I keep trying to get my system running on all 4 cpu's in it. It keeps dropping down to 1 core after a week or so. Anyone have any idea why this occurs. All the setups i see say 100% on cpu use.
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Message 1165287 - Posted: 25 Oct 2011, 13:13:41 UTC

Do you actually have four, or more, tasks present on the machine that could use all cores between them?

If so, what's the status of the other tasks - 'Ready to start', 'Waiting to run', or something different?
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Message 1165290 - Posted: 25 Oct 2011, 13:30:23 UTC - in response to Message 1165279.  
Last modified: 25 Oct 2011, 13:32:42 UTC


You very probably see not SETI but
MilkyWay@Home N-Body Simulation v0.62 (mt)
task running:
http://milkyway.cs.rpi.edu/milkyway/results.php?hostid=273415

and mt == Multi-Threaded == uses all cores for 1 task

Check in Windows Task Manager that all cores are at full load.


 


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Message 1165296 - Posted: 25 Oct 2011, 13:53:50 UTC - in response to Message 1165290.  

I have sufficient tasks waiting to run. somewhere around 25 or so, a full page and more. task manager says 1 cpu running and it swaps about every 2 min between cpu's.
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Message 1165297 - Posted: 25 Oct 2011, 14:00:27 UTC - in response to Message 1165290.  

Yes in the past I have seen milky way take over all 4 cpu's in 1 task but at the present it is not doing any milky way units though there are some in the q to run. there are about 10 milky way and 30 seti jobs in the q and i setu task running on 1 cpu
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Message 1165298 - Posted: 25 Oct 2011, 14:01:05 UTC - in response to Message 1165296.  

I have sufficient tasks waiting to run. somewhere around 25 or so, a full page and more. task manager says 1 cpu running and it swaps about every 2 min between cpu's.

If the tasks are in the "Waiting to Run" state then BOINC isn't running them because it thinks it needs to do something else instead, is running something else, or is being wonky. If it does this on a regular basis once a week and then runs correctly after restarting BOINC I would expect it is being wonky.
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Message 1165305 - Posted: 25 Oct 2011, 14:30:36 UTC

Ah. Looking at the list of 'your computers', I only see one quad core - and it's running Linux.

Round here, most people - including me - run Windows, and have that as a default assumption hard-wired into their brains when answering questions from users: it can be helpful to draw attention to other operating systems when you post.

Having said that, I'd been wondering whether you could be suffering from some sort of memory (RAM) starvation - 'waiting for memory' can be one of the reasons for suspending a running task, and I can't think of any others offhand which would suspend a task when the was a free core available and not ruled out by your preferences. But I'll have to leave it to a Linux specialist to describe how to check memory usage on your machine.
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Message 1165308 - Posted: 25 Oct 2011, 14:43:51 UTC - in response to Message 1165305.  

Ah. Looking at the list of 'your computers', I only see one quad core - and it's running Linux.

Round here, most people - including me - run Windows, and have that as a default assumption hard-wired into their brains when answering questions from users: it can be helpful to draw attention to other operating systems when you post.

Having said that, I'd been wondering whether you could be suffering from some sort of memory (RAM) starvation - 'waiting for memory' can be one of the reasons for suspending a running task, and I can't think of any others offhand which would suspend a task when the was a free core available and not ruled out by your preferences. But I'll have to leave it to a Linux specialist to describe how to check memory usage on your machine.


I've had Wu's from Primaboinca and Yoyo that use up to 2Gb of ram on my quad core Linux box which has 4Gb of ram . Typically what happens is the OS will use the HDD when it lacks Ram. The noise is quite noticeable. The OS also takes a hit and slows down.

Perhaps his CPU useage setting was set to 25%


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Message 1165318 - Posted: 25 Oct 2011, 18:28:43 UTC - in response to Message 1165305.  

Ah. Looking at the list of 'your computers', I only see one quad core - and it's running Linux.

Round here, most people - including me - run Windows, and have that as a default assumption hard-wired into their brains when answering questions from users: it can be helpful to draw attention to other operating systems when you post.

Having said that, I'd been wondering whether you could be suffering from some sort of memory (RAM) starvation - 'waiting for memory' can be one of the reasons for suspending a running task, and I can't think of any others offhand which would suspend a task when the was a free core available and not ruled out by your preferences. But I'll have to leave it to a Linux specialist to describe how to check memory usage on your machine.


In my case I've seen similar issues as the OP and in fact they were due to my settings being too low for memory usage by BOINC, but it never told me that it was waiting for memory. Boinc just used as much cores as the memory allowed to run and all other tasks were just "waiting to run" with no details about why it was not using the other cores (using BOINC 6.12.34 Windows)
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Message 1165387 - Posted: 26 Oct 2011, 1:16:23 UTC - in response to Message 1165318.  


In my case I've seen similar issues as the OP and in fact they were due to my settings being too low for memory usage by BOINC, but it never told me that it was waiting for memory. Boinc just used as much cores as the memory allowed to run and all other tasks were just "waiting to run" with no details about why it was not using the other cores (using BOINC 6.12.34 Windows)[/quote]

This sounds like my problem I have 2 gigs of ram and running the defaults yhat were setup except setting all to 100%
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Message 1165424 - Posted: 26 Oct 2011, 7:08:10 UTC - in response to Message 1165387.  

Where do I find the controls for memory in bonic for linux
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Message 1165511 - Posted: 26 Oct 2011, 14:50:20 UTC - in response to Message 1165424.  


Give us the first ~30 lines of your messages

Your BOINC 6.10.17 have to have Messages tab
Click, Shift-Click to select the part of Starting messages
Use the button [Copy selected messages]

I/we want to see at least the lines in bold as in this example from my computer:

25/10/2011 20:21:44 Starting BOINC client version 6.10.58 for windows_intelx86
25/10/2011 20:21:44 log flags: file_xfer, sched_ops, task, benchmark_debug
25/10/2011 20:21:44 Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3
25/10/2011 20:21:44 Data directory: H:\BOINC-Data
25/10/2011 20:21:44 Running under account A & L
25/10/2011 20:21:45 Processor: 1 AuthenticAMD AMD Athlon(tm) 64 Processor 3500+ [Family 15 Model 95 Stepping 2]
25/10/2011 20:21:45 Processor: 512.00 KB cache
25/10/2011 20:21:45 Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 pni cx16 syscall nx lm svm rdtscp 3dnowext 3dnow
25/10/2011 20:21:45 OS: Microsoft Windows XP: Professional x86 Edition, Service Pack 3, (05.01.2600.00)
25/10/2011 20:21:45 Memory: 895.23 MB physical, 1.78 GB virtual
25/10/2011 20:21:45 Disk: 90.00 GB total, 1.42 GB free
25/10/2011 20:21:45 Local time is UTC +3 hours
25/10/2011 20:21:46 No usable GPUs found
25/10/2011 20:21:46 SETI@home Found app_info.xml; using anonymous platform
25/10/2011 20:21:46 orbit@home URL http://orbit.psi.edu/oah/; Computer ID 43546; resource share 20
25/10/2011 20:21:46 SETI@home URL http://setiathome.berkeley.edu/; Computer ID 4832843; resource share 100
25/10/2011 20:21:47 SETI@home General prefs: from SETI@home (last modified 07-Jan-2011 23:28:40)
25/10/2011 20:21:47 SETI@home Computer location: home
25/10/2011 20:21:47 SETI@home General prefs: no separate prefs for home; using your defaults
25/10/2011 20:21:47 Reading preferences override file
25/10/2011 20:21:47 Preferences:
25/10/2011 20:21:47 max memory usage when active: 492.38MB
25/10/2011 20:21:47 max memory usage when idle: 689.33MB
25/10/2011 20:21:50 max disk usage: 0.30GB
25/10/2011 20:21:50 (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
25/10/2011 20:21:50 Using proxy info from GUI
25/10/2011 20:21:50 Not using a proxy
25/10/2011 20:21:50 Suspending computation - initial delay
25/10/2011 20:21:57 SETI@home Restarting task 17se11aa.20205.16427.15.10.182_1 using setiathome_enhanced version 603


 


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Message 1165612 - Posted: 26 Oct 2011, 20:37:35 UTC

Which distro / version of Linux are you using.
some of them like ubuntu go into power saving mode even when Boinc is running because seti and most other boinc projects are a low priority process the operating system does not keep the system running at full power.
This power saving mode can be changed, and the method depends on which os you are running.
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Message 1165692 - Posted: 27 Oct 2011, 4:25:15 UTC - in response to Message 1165511.  

This is all the messages in the q since I rebooted this morning
to answer the other question about version
You are using Ubuntu 10.04 LTS - the Lucid Lynx - released in April 2010 and supported until April 2013.

Wed 26 Oct 2011 12:20:57 AM PDT Starting BOINC client version 6.10.17 for i686-pc-linux-gnu
Wed 26 Oct 2011 12:20:57 AM PDT log flags: file_xfer, sched_ops, task
Wed 26 Oct 2011 12:20:57 AM PDT Libraries: libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15
Wed 26 Oct 2011 12:20:57 AM PDT Data directory: /var/lib/boinc-client
Wed 26 Oct 2011 12:20:57 AM PDT Processor: 4 GenuineIntel Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz [Family 6 Model 15 Stepping 11]
Wed 26 Oct 2011 12:20:57 AM PDT Processor: 4.00 MB cache
Wed 26 Oct 2011 12:20:57 AM PDT Processor features: fpu vme de pse tsc msr pae mce cx8 apic 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 lahf_lm
Wed 26 Oct 2011 12:20:57 AM PDT OS: Linux: 2.6.32-34-generic
Wed 26 Oct 2011 12:20:57 AM PDT Memory: 1.96 GB physical, 5.75 GB virtual
Wed 26 Oct 2011 12:20:57 AM PDT Disk: 323.15 GB total, 295.47 GB free
Wed 26 Oct 2011 12:20:57 AM PDT Local time is UTC -7 hours
Wed 26 Oct 2011 12:20:57 AM PDT No usable GPUs found
Wed 26 Oct 2011 12:20:57 AM PDT Not using a proxy
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home URL http://setiathome.berkeley.edu/; Computer ID 5861230; resource share 100
Wed 26 Oct 2011 12:20:58 AM PDT Milkyway@home URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 273415; resource share 100
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home General prefs: from SETI@home (last modified 23-Oct-2011 21:18:40)
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home Computer location: home
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home General prefs: no separate prefs for home; using your defaults
Wed 26 Oct 2011 12:20:58 AM PDT Reading preferences override file
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit memory usage when active to 2011.86MB
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit memory usage when idle to 2011.86MB
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit disk usage to 32.31GB
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home Restarting task ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3 using astropulse_v505 version 506
Wed 26 Oct 2011 05:15:47 AM PDT SETI@home Sending scheduler request: To report completed tasks.
Wed 26 Oct 2011 05:15:47 AM PDT SETI@home Reporting 1 completed tasks, not requesting new tasks
Wed 26 Oct 2011 05:15:52 AM PDT SETI@home Scheduler request completed
Wed 26 Oct 2011 09:27:07 AM PDT SETI@home Starting ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0
Wed 26 Oct 2011 09:27:07 AM PDT SETI@home Starting task ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0 using astropulse_v505 version 506
Wed 26 Oct 2011 12:17:38 PM PDT SETI@home Computation for task ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3 finished
Wed 26 Oct 2011 12:17:38 PM PDT SETI@home Resuming task ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0 using astropulse_v505 version 506
Wed 26 Oct 2011 12:17:40 PM PDT SETI@home Started upload of ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3_0
Wed 26 Oct 2011 12:17:46 PM PDT SETI@home Finished upload of ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3_0

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Message 1165694 - Posted: 27 Oct 2011, 4:58:17 UTC - in response to Message 1165692.  
Last modified: 27 Oct 2011, 5:18:04 UTC


Since you have this line:
Wed 26 Oct 2011 12:20:58 AM PDT Reading preferences override file

... it means you are already using local preferences.

You can find the local preferences in BOINC Manager menu:
Advanced -> Preferences
(or use Alt+D, P)


If you want to edit the file directly look for:
global_prefs_override.xml
which is in the Data directory: /var/lib/boinc-client


I don't see any strange messages except that only 1 task is started.
I'm not sure was BOINC 6.10.17 a beta of final version.
Try to install BOINC 6.10.58
http://boinc.berkeley.edu/download_all.php


 


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Message 1165735 - Posted: 27 Oct 2011, 12:56:55 UTC - in response to Message 1165692.  
Last modified: 27 Oct 2011, 12:57:22 UTC

This is all the messages in the q since I rebooted this morning
to answer the other question about version
You are using Ubuntu 10.04 LTS - the Lucid Lynx - released in April 2010 and supported until April 2013.

Wed 26 Oct 2011 12:20:57 AM PDT Starting BOINC client version 6.10.17 for i686-pc-linux-gnu
Wed 26 Oct 2011 12:20:57 AM PDT log flags: file_xfer, sched_ops, task
Wed 26 Oct 2011 12:20:57 AM PDT Libraries: libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15
Wed 26 Oct 2011 12:20:57 AM PDT Data directory: /var/lib/boinc-client
Wed 26 Oct 2011 12:20:57 AM PDT Processor: 4 GenuineIntel Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz [Family 6 Model 15 Stepping 11]
Wed 26 Oct 2011 12:20:57 AM PDT Processor: 4.00 MB cache
Wed 26 Oct 2011 12:20:57 AM PDT Processor features: fpu vme de pse tsc msr pae mce cx8 apic 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 lahf_lm
Wed 26 Oct 2011 12:20:57 AM PDT OS: Linux: 2.6.32-34-generic
Wed 26 Oct 2011 12:20:57 AM PDT Memory: 1.96 GB physical, 5.75 GB virtual
Wed 26 Oct 2011 12:20:57 AM PDT Disk: 323.15 GB total, 295.47 GB free
Wed 26 Oct 2011 12:20:57 AM PDT Local time is UTC -7 hours
Wed 26 Oct 2011 12:20:57 AM PDT No usable GPUs found
Wed 26 Oct 2011 12:20:57 AM PDT Not using a proxy
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home URL http://setiathome.berkeley.edu/; Computer ID 5861230; resource share 100
Wed 26 Oct 2011 12:20:58 AM PDT Milkyway@home URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 273415; resource share 100
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home General prefs: from SETI@home (last modified 23-Oct-2011 21:18:40)
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home Computer location: home
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home General prefs: no separate prefs for home; using your defaults
Wed 26 Oct 2011 12:20:58 AM PDT Reading preferences override file
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit memory usage when active to 2011.86MB
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit memory usage when idle to 2011.86MB
Wed 26 Oct 2011 12:20:58 AM PDT Preferences limit disk usage to 32.31GB
Wed 26 Oct 2011 12:20:58 AM PDT SETI@home Restarting task ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3 using astropulse_v505 version 506
Wed 26 Oct 2011 05:15:47 AM PDT SETI@home Sending scheduler request: To report completed tasks.
Wed 26 Oct 2011 05:15:47 AM PDT SETI@home Reporting 1 completed tasks, not requesting new tasks
Wed 26 Oct 2011 05:15:52 AM PDT SETI@home Scheduler request completed
Wed 26 Oct 2011 09:27:07 AM PDT SETI@home Starting ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0
Wed 26 Oct 2011 09:27:07 AM PDT SETI@home Starting task ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0 using astropulse_v505 version 506
Wed 26 Oct 2011 12:17:38 PM PDT SETI@home Computation for task ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3 finished
Wed 26 Oct 2011 12:17:38 PM PDT SETI@home Resuming task ap_02ap11ad_B2_P0_00135_20111009_15263.wu_0 using astropulse_v505 version 506
Wed 26 Oct 2011 12:17:40 PM PDT SETI@home Started upload of ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3_0
Wed 26 Oct 2011 12:17:46 PM PDT SETI@home Finished upload of ap_10jl11ab_B1_P0_00178_20110913_25929.wu_3_0

That does show only one task running at a time. I would think 2GB would be plenty, but depending on what the box is doing I guess it might not be. How does the free memory on the machine look?
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Message 1165748 - Posted: 27 Oct 2011, 13:54:22 UTC - in response to Message 1165735.  

Free memory is about 77% I reloaded the seti client and for the present I have 4 cpu's running. now to see why this vista machine is only getting about 100 a day. my XP machine gets at least 500 a day.
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Message 1165751 - Posted: 27 Oct 2011, 14:05:28 UTC - in response to Message 1165748.  

Free memory is about 77% I reloaded the seti client and for the present I have 4 cpu's running. now to see why this vista machine is only getting about 100 a day. my XP machine gets at least 500 a day.

That's credits, of course - for a moment I thought you meant WUs.

Probably because your Vista machine is returning a lot of errors, with "too many exit(0)s" in the samples I checked. They never even got started, with 0.00 runtime.

That can sometimes happen because an over-assertive virus scanner or firewall is waiting for you to authorise the application as safe to run on your machine - but there can be many other possible casuses as well. You need to have a look at the machine as a whole.
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Message 1165755 - Posted: 27 Oct 2011, 14:16:22 UTC - in response to Message 1165751.  

Free memory is about 77% I reloaded the seti client and for the present I have 4 cpu's running. now to see why this vista machine is only getting about 100 a day. my XP machine gets at least 500 a day.

That's credits, of course - for a moment I thought you meant WUs.

Probably because your Vista machine is returning a lot of errors, with "too many exit(0)s" in the samples I checked. They never even got started, with 0.00 runtime.

That can sometimes happen because an over-assertive virus scanner or firewall is waiting for you to authorise the application as safe to run on your machine - but there can be many other possible casuses as well. You need to have a look at the machine as a whole.


your last valid task was reported 26 Oct 2011 | 23:09:04 UTC together with a failed bunch, everything after that seems to have errored out.
Anything you changed on that machine around that time? or rather a bit earlier but after 26 Oct 2011 | 14:26:07 UTC before which you seemd to be validating nicely
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Message 1165780 - Posted: 27 Oct 2011, 15:44:08 UTC - in response to Message 1165748.  

Free memory is about 77% I reloaded the seti client and for the present I have 4 cpu's running. now to see why this vista machine is only getting about 100 a day. my XP machine gets at least 500 a day.

The logging flags that have to do with how BOINC decides what to do might be helpful in troubleshooting. There is a full listing of them here. With the right ones enabled you would be ableto go back through the history and see when things started going wonky. I would think <cpu_sched>, <cpu_sched_debug>, <sched_op_debug>, and/or <state_debug>.
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