Possible Anomaly with 4.4x

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Alinator
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Message 115329 - Posted: 27 May 2005, 5:17:44 UTC

I've observed a possible anomaly a couple of times with 4.43 running on 9x. Just saw the post about 4.44 so I haven't done the upgrade yet.

Occaisionally when the scheduler does a project switch, and decides it need to go into ED mode, the elapsed CPU timer for the suspended project keeps incrementing even though there is apparently no CPU time being allocated as indicated with other process monitoring tools (I have it set to remain in memory).

I have not seen this happen when the scheduler makes the switch and remains in normal mode.

However, since I'm investigating BOINC's behaviour with machines on the low end of the horsepower spectrum, it may be a while before I get a chance to see if this happens on a regular basis.

Alinator
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Message 115357 - Posted: 27 May 2005, 9:17:02 UTC - in response to Message 115329.  
Last modified: 27 May 2005, 9:17:26 UTC

I've observed a possible anomaly a couple of times with 4.43 running on 9x. Just saw the post about 4.44 so I haven't done the upgrade yet.

Occaisionally when the scheduler does a project switch, and decides it need to go into ED mode, the elapsed CPU timer for the suspended project keeps incrementing even though there is apparently no CPU time being allocated as indicated with other process monitoring tools (I have it set to remain in memory).

I have not seen this happen when the scheduler makes the switch and remains in normal mode.

However, since I'm investigating BOINC's behaviour with machines on the low end of the horsepower spectrum, it may be a while before I get a chance to see if this happens on a regular basis.

Alinator


Is this the same as I have seen twice now?

I have seen a WU reported with 0% complete, but 9mins CPU in one case 17mins in another.

A reboot fixed this, and it seemed that both WUs hada actually done 15% to 40% work, just the percentage done had frozen ay zero.

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Aurora Borealis
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Message 115386 - Posted: 27 May 2005, 12:30:57 UTC - in response to Message 115329.  

I've observed a possible anomaly a couple of times with 4.43 running on 9x. Just saw the post about 4.44 so I haven't done the upgrade yet.

Occaisionally when the scheduler does a project switch, and decides it need to go into ED mode, the elapsed CPU timer for the suspended project keeps incrementing even though there is apparently no CPU time being allocated as indicated with other process monitoring tools (I have it set to remain in memory).

I have not seen this happen when the scheduler makes the switch and remains in normal mode.

However, since I'm investigating BOINC's behaviour with machines on the low end of the horsepower spectrum, it may be a while before I get a chance to see if this happens on a regular basis.

Alinator


DO NOT USE "remain in memory" with Win9x OS (possibly ME also). This is a well known issue which has never been addressed by the dev.


Boinc V7.2.42
Win7 i5 3.33G 4GB, GTX470
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Alinator
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Message 115415 - Posted: 27 May 2005, 14:22:29 UTC - in response to Message 115386.  

I've observed a possible anomaly a couple of times with 4.43 running on 9x. Just saw the post about 4.44 so I haven't done the upgrade yet.

Occaisionally when the scheduler does a project switch, and decides it need to go into ED mode, the elapsed CPU timer for the suspended project keeps incrementing even though there is apparently no CPU time being allocated as indicated with other process monitoring tools (I have it set to remain in memory).

I have not seen this happen when the scheduler makes the switch and remains in normal mode.

However, since I'm investigating BOINC's behaviour with machines on the low end of the horsepower spectrum, it may be a while before I get a chance to see if this happens on a regular basis.

Alinator



DO NOT USE "remain in memory" with Win9x OS (possibly ME also). This is a well known issue which has never been addressed by the dev.



Thanks for the heads up on the known issue, although I neglected to log what memeory mode I was running in the first time I saw it (think it was in the default remove mode, but am not sure though).

Interestingly, I cleared the anomaly by exiting BOINC and then restarting it.

The anomaly happened on the first switch after attaching to the second project on the two machines where I've observed it happen. However since then, it has made several mode switches and the behaviour has not repeated.

Alinator
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Message boards : Number crunching : Possible Anomaly with 4.4x


 
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