Backwards????

Questions and Answers : Windows : Backwards????
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Clarence R. Isaacks II

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Message 1111885 - Posted: 1 Jun 2011, 2:19:49 UTC

Turned off my computer and cleaned fans. Restarted and all is well except BOINC/Seti program.
Four nearly completed units are now counting backwards in progress. Suspended the units, rebooted and restarted units and still the same symptom.
Suspended units again, started new units and the new units show normal progress, counting up in progress. Stopped one of the new units, restarted
unit in trouble and still counting backwards...????
Any ideas??????
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Message 1111897 - Posted: 1 Jun 2011, 3:19:54 UTC - in response to Message 1111885.  

The Time to Completion is just an estimate based upon past Duration Correction Factors from completed units. This estimate can be off depending on many different factors, most often because there's more to the workunit than what you've received in the recent past.

What type of workunit is it? AstroPulse? MultiBeam? CPU? GPU? VHAR? VLAR?
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Message 1112007 - Posted: 1 Jun 2011, 12:05:40 UTC - in response to Message 1111897.  

I understand 'time to completion'. Like you I have been donating computer time
for many years. However, this is the first time I have seen the progress go up to 100%, stop, reverse, countdown to zero, then complete. Have 5 other computers with similar setups. All other computers OK.

Running Seti only.
No other computer programs running on new computer, fresh build windows 7 ultimate, all updates done. AMD 965, 8gb mem, not running GPU so no vlar/vhar.
Was operating perfect until I cleaned fans.

Now???
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Message 1112084 - Posted: 1 Jun 2011, 16:49:28 UTC - in response to Message 1112007.  

not running GPU so no vlar/vhar.


VLAR and VHAR stands for Very Low Angle Range and Very High Angle Range, and relate to the position of the satellite while recording.

VLAR and VHAR have nothing to do with GPU computing exclusively.


If you crunch a bunch of VHARs on your CPU, your DCF thinks you complete workunits very quicky. If then you get a bunch of VHARs, your computer will think you are crunching much more slowly and will make your Estimated Time to Completion off until it self-corrects over time. While it self-corrects, it can give the appearance that time has wound "backwards".
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Message 1112099 - Posted: 1 Jun 2011, 17:58:00 UTC

Oops, I ran out of time to edit my last post, but the first sentence in the third paragraph should have read:

If you crunch a bunch of VHARs on your CPU, your DCF thinks you complete workunits very quicky. If then you get a bunch of VLARs...
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Message 1113826 - Posted: 6 Jun 2011, 11:17:27 UTC - in response to Message 1112007.  
Last modified: 6 Jun 2011, 11:22:28 UTC


For how long this "progress reverse, countdown" continues?
If it is for seconds it is normal - when you restart task it "reverses" to/resumes from the last saved state (checkpoint).

(And you talk about "Progress", Not "Time to Completion", right?)


 


- ALF - "Find out what you don't do well ..... then don't do it!" :)
 
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Questions and Answers : Windows : Backwards????


 
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