Keep track of workunits


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Questions and Answers : Windows : Keep track of workunits

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Profile Grecu Ionut - Florin
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Message 1136277 - Posted: 5 Aug 2011, 15:40:54 UTC
Last modified: 5 Aug 2011, 15:41:04 UTC

Is it possible to keep track on your work units? I mean, I've done a few, but I'm only able to see my last 14.

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Message 1136367 - Posted: 5 Aug 2011, 19:28:48 UTC - in response to Message 1136277.

once WU's are validated they are purged, usually within about 24 hours. The reason for this is we don't keep counts of the WU's like we did with the old seti@home. The current point values are dictated by how much work is done per WU.
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Message 1136389 - Posted: 5 Aug 2011, 20:03:23 UTC - in response to Message 1136367.
Last modified: 5 Aug 2011, 20:04:44 UTC

The current point values are dictated by how much work is done per WU.

So one WU isnt worth 1 credit then, if so then thats a joke because there would be no way to tally how many WU's a person has truly done.

Assuming thats the case, no wonder why none of the other project people want to credit the way Dr. A wants them to. Again, this all assumes that everything being read in the following post can be believed.

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Message 1136452 - Posted: 5 Aug 2011, 21:29:16 UTC - in response to Message 1136389.

well we aren't counting WU's anymore. We ARE counting the actual amount of work being done. If you recall there were those "sweet" WU's that took a few seconds to complete and you still got credit for completing a task. Now those sweet Wu's are only worth a credit or 2. Current WU's give 20-120 credits depending on the angle range. Very High Angle Range(VHAR) WU's give less credit than a Very Low Angle Range(VLAR) WU's though over time the credits/time crunched is pretty similar.

You may think this is unfair but the BOINC system has to have a generic means of calculating credit for all projects including Seti@home that use the BOINC manager and processes to run distributed computing projects. This enables all project to give similar credit for work done.
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Message 1136515 - Posted: 6 Aug 2011, 0:45:14 UTC - in response to Message 1136277.

Is it possible to keep track on your work units? I mean, I've done a few, but I'm only able to see my last 14.

Look into BOINC tasks. This is an alternate to BOINC Manager and keeps history of tasks completed while it is running.
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Message 1136615 - Posted: 6 Aug 2011, 5:35:19 UTC - in response to Message 1136515.
Last modified: 6 Aug 2011, 5:35:47 UTC

Is it possible to keep track on your work units? I mean, I've done a few, but I'm only able to see my last 14.

Look into BOINC tasks. This is an alternate to BOINC Manager and keeps history of tasks completed while it is running.


You could also look at "Computers on your account/details/Application details', like this

I forget exactly when this format was adopted, but I think it's been over a year, at least.
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Message 1137068 - Posted: 7 Aug 2011, 1:52:33 UTC - in response to Message 1136389.

So one WU isn't worth 1 credit then, if so then thats a joke because there would be no way to tally how many WU's a person has truly done.


Of course one WU isn't worth 1 credit.

How many times did you travel so far?
Is it important to count "How many times"?
Isn't it more informative to ask "How far"?

(You may travel a few blocks with a bus/car (= 1 "journey").
Or you may cross the ocean (again = 1 "journey").
Credit is given for "How far/long", not for "How many"
)


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Message 1138339 - Posted: 10 Aug 2011, 13:12:31 UTC - in response to Message 1137068.
Last modified: 10 Aug 2011, 13:13:06 UTC

@BilBg,

If you drive a distance in 1 minute but walk the same distance in 10 minutes, have you done the same progress then? The answer clearly depends on what one mean with progress.

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Message 1138355 - Posted: 10 Aug 2011, 14:04:53 UTC - in response to Message 1138339.

@BilBg,

If you drive a distance in 1 minute but walk the same distance in 10 minutes, have you done the same progress then? The answer clearly depends on what one mean with progress.


To explain BilBg's position another way:


SETI@Home doesn't pay per distance. It pays per calculation. The problem comes from the fact that not all workunits are alike; some can take as little as 10 minutes and some can take as long as 3 hours on the same machine. If SETI only paid per workunit, those that are looking to inflate their numbers would cherry-pick the workunits that their machine runs faster, which wouldn't really help the project's goals at all.


To use our distance analogy, not every workunit is equal to traveling the same distance. A more apt analogy would be to say that I assign a road for you and BilBg to travel. The road I assign to you is 1km and you have a bicycle to travel it. The road I assign BilBg is 20km and he has a Ferrari. It takes both of you exactly 15 minutes to complete your assigned distance, but BilBg did more than you.

Would it really be fair to say that you did the same amount of work? Of course not. This is why SETI pays for an approximation of the number of calculation you do instead of how many workunits you complete.

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Message 1138363 - Posted: 10 Aug 2011, 14:36:36 UTC - in response to Message 1136615.

Is it possible to keep track on your work units? I mean, I've done a few, but I'm only able to see my last 14.

Look into BOINC tasks. This is an alternate to BOINC Manager and keeps history of tasks completed while it is running.


You could also look at "Computers on your account/details/Application details', like this



And, there's the file job_log_setiathome.berkeley.edu.txt in BOINC' Data directory, too. I believe it logs summary info for every task started or completed. It's semi-cryptic but nm is name, ct is cpu time, et is elapsed time. I'm not sure what some of the others are. It can't log info it doesn't have access to though like credit granted. Logging AR or pct blanking would be welcome additions, I think.

And it really should display date/time in a human readable format (it uses Unix time which can be translated, but is a pita).

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Message 1138385 - Posted: 10 Aug 2011, 15:33:12 UTC - in response to Message 1138363.

These are things recorded by BOINC, not by the science application. So any changes to what's recorded will have to be available for all projects. Angle range and percentage blanking isn't.

ct = CPU Time (final_cpu_time)
et = Elapsed Time (final_elapsed_time)
nm = Name of task
fe = value of <rsc_fpops_est>
ue = value of Estimated Time to end without correction. (estimated_duration_uncorrected)
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Message 1138407 - Posted: 10 Aug 2011, 16:08:05 UTC - in response to Message 1138385.

These are things recorded by BOINC, not by the science application. So any changes to what's recorded will have to be available for all projects. Angle range and percentage blanking isn't.

ct = CPU Time (final_cpu_time)
et = Elapsed Time (final_elapsed_time)
nm = Name of task
fe = value of <rsc_fpops_est>
ue = value of Estimated Time to end without correction. (estimated_duration_uncorrected)



Thanks for filling in the blanks!

Re BOINC comment...since "seti" is part of the filename, shouldn't it (couldn't it) be SETI specific?

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Message 1138418 - Posted: 10 Aug 2011, 16:28:10 UTC - in response to Message 1138407.

Re BOINC comment...since "seti" is part of the filename, shouldn't it (couldn't it) be SETI specific?

No, as the BOINC client writes that job_log and does so on a scheduler contact with the project server . It doesn't look inside any of the project's files, it merely works with what information about the file it gets from the server and what it recorded when you ran it.
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Message 1140479 - Posted: 14 Aug 2011, 18:18:45 UTC - in response to Message 1138339.

@BilBg,

If you drive a distance in 1 minute but walk the same distance in 10 minutes, have you done the same progress then? The answer clearly depends on what one mean with progress.

Of course it's the same progress (distance) - for SETI it will be the same credit but different RAC

Credit - pays for the delivery itself and depend only on how big the "stuff" you deliver is (no matter how fast/slow you deliver that "stuff")
RAC - = Credit/day (depend also on how fast you deliver)


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Message 1140490 - Posted: 14 Aug 2011, 18:32:44 UTC - in response to Message 1138355.
Last modified: 14 Aug 2011, 19:03:22 UTC

The road I assign BilBg is 20km and he has a Ferrari. ...


;) Where ... Where ... Where ... Where ... ?







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Questions and Answers : Windows : Keep track of workunits

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