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Old woman(mann, sorry) Baron


Joined: 09 Nov 2007 Posts: 221 Location: Nottingham, England
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Posted: Tue Feb 24, 2009 3:39 pm Post subject: Curious SETI |
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SETI has given me a task that will take 271 hours to process.
Isn't that a bit unusual?
It's way beyond what they usually send me.
I've had to stop all other shrubbing until I'm sure of completion ( I was given 29 days).
It also begs a few questions:
how do they calculate how long it will take? ( I have an Athlon 2000 (1667mhz) ) do they know that? ( I don't mind their knowing, I'm just curious).
If not, is it a generalization of modern computer speeds?
Ok, two questions. _________________ [img]http://boincstats.boincstats.com/search/all_projects.php?cpid=8fbcb4ce48ba412ccbb4337d9d2bf18a.gif[/img] |
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Idan UN-Smitten


Joined: 07 Dec 2005 Posts: 2993 Location: Tel-Aviv, Israel
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Posted: Tue Feb 24, 2009 4:04 pm Post subject: |
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271 hours? ha! That's a short one...
I just encountered a WU that needs 450 hours to crunch (http://www.kwsnforum.com/viewtopic.php?t=12946)
I bet it's an astro pulse work unit, isn't it?  _________________ Anyone for Crunch?
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Sir Papa Smurph Cries like a little girl


Joined: 18 Jul 2006 Posts: 4430 Location: Michigan
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Posted: Tue Feb 24, 2009 4:11 pm Post subject: |
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I had one come benchmarked at 510 hours. It finished in about 85 hours _________________ a.k.a. Licentious of Borg.........Resistance Really is Futile.......
and a Really Hoopy Frood who always knows where his Towel is...
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Adam Alexander Prince


Joined: 25 Oct 2008 Posts: 1626 Location: The looNItic fringe
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Posted: Tue Feb 24, 2009 5:27 pm Post subject: |
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I've noticed on some projects that when you initially download WU's the estimates are very high, but improve as you do more work units. This has happened with projects like SHA-1 where the WU's are consistent in size. The SETI AP WU's are all over the place. I got one yesterday that projected 49 hours and thought that was bad, but the same machine is crunching a CPDN WU that is a measly 400 hours or so.
I'd like to know how they estimate that, too. _________________
Currently running:
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Intel Core 2 Quad 9550
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Now down to one Intel Core 2 Quad Q6700 that's in a tiny case and overheats if I actually try to use all four cores at the same time. On the other hand, it makes for a very nice home theater PC
Intel Core i7 CPU 920
AMD Athlon(tm) 7850 |
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Killerrabbit Major Oblivion


Joined: 23 May 2002 Posts: 4656 Location: in a rabbit hole near you!!
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Posted: Wed Feb 25, 2009 12:13 am Post subject: |
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It is most likely a Astropulse WU, they tend to be a bit longer than the regular SETI WUs.
Ni _________________
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Old woman(mann, sorry) Baron


Joined: 09 Nov 2007 Posts: 221 Location: Nottingham, England
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Posted: Wed Feb 25, 2009 1:23 am Post subject: |
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It is an astropulse. _________________ [img]http://boincstats.boincstats.com/search/all_projects.php?cpid=8fbcb4ce48ba412ccbb4337d9d2bf18a.gif[/img] |
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Old woman(mann, sorry) Baron


Joined: 09 Nov 2007 Posts: 221 Location: Nottingham, England
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Posted: Tue Mar 03, 2009 6:43 pm Post subject: A shrub too far? |
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So far it has had 112:04 hours of time from an AMD2000 (1667Mhz).
Time left is 286:32, which is 27.2% ???
Doesn't compute does it?
So what gives? _________________ [img]http://boincstats.boincstats.com/search/all_projects.php?cpid=8fbcb4ce48ba412ccbb4337d9d2bf18a.gif[/img] |
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Sir Papa Smurph Cries like a little girl


Joined: 18 Jul 2006 Posts: 4430 Location: Michigan
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Posted: Tue Mar 03, 2009 7:39 pm Post subject: |
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You can and probably should dl an Optimized client.
http://lunatics.kwsn.net/
You will need to register to Dl and you need to find the correct client and follow the directions. use Cpuz to determine the abilities of your chip
http://www.cpuid.com/cpuz.php
I can't get one as I forgot my Password and Simon has not emailed me a new one yet....  _________________ a.k.a. Licentious of Borg.........Resistance Really is Futile.......
and a Really Hoopy Frood who always knows where his Towel is...
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Idan UN-Smitten


Joined: 07 Dec 2005 Posts: 2993 Location: Tel-Aviv, Israel
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Posted: Wed Mar 04, 2009 4:43 am Post subject: |
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Sir Papa Smurph wrote: | You can and probably should dl an Optimized client.
http://lunatics.kwsn.net/
You will need to register to Dl and you need to find the correct client and follow the directions. use Cpuz to determine the abilities of your chip
http://www.cpuid.com/cpuz.php
I can't get one as I forgot my Password and Simon has not emailed me a new one yet....  |
Is it possible to change to the optimized client while crunching with the normal client? I mean, close the boinc manager, putting the optimized client in place and starting the boinc manager again without damaging the work done so far? I still have an AP WU half way through with 200+ hours of crunching that I wouldn't like to lose... _________________ Anyone for Crunch?
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John Galt 007 Prince


Joined: 31 Dec 2007 Posts: 1206 Location: Wisconsin
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KWSN glidersaur Knight


Joined: 14 Feb 2009 Posts: 59 Location: Land of the Sacred Cheddar
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Posted: Wed Mar 04, 2009 6:45 pm Post subject: |
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You can set up a simple proportion. I have an AP WU that originally was benchmarked at 212 estimated hours to completion. To date, I have 95 hours CPU time on this WU, which is about 85% complete. You set up the following equation: 95:85::X:100. It reads, "95 is to 85 percent as X is to 100 percent. Multiply the 95 by 100 and divide the result by 85 which yields 111, which is the total number of hours to complete the WU. That means I have about 111 hours minus 95 hours or 16 hours left to complete the WU. I am chipping away at it, at about 1.5 hours per day now, so I can focus on SHA-1 work units for the PotM. I should complete the SETI AP WU by the due date of March 15th. I may have to add an hour or two at the end, but it will come out pretty close. Hope this helps. _________________ Oops, that didn't work...how hot can a CPU get? This one is smoldering!
Keeper of Rule Number 8 which is not important at the present, but it used to be.
I have no intelligent thoughts at this moment.
Ni!
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Lloyd M. Prince

Joined: 02 Mar 2007 Posts: 521
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Posted: Thu Mar 05, 2009 1:56 am Post subject: |
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Adam Alexander wrote: | The SETI AP WU's are all over the place. |
What I hate is when the time to complete keeps sliding further and further out. I had to give up on one that I had wasted 72 hours on, because it was already past deadline, and it was showing an ever-increasing time to complete that had already exceeded 23 hours. _________________
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Lloyd M. Prince

Joined: 02 Mar 2007 Posts: 521
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Posted: Thu Mar 05, 2009 1:59 am Post subject: Re: A shrub too far? |
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Old woman(mann, sorry) wrote: | So far it has had 112:04 hours of time from an AMD2000 (1667Mhz).
Time left is 286:32, which is 27.2% ???
Doesn't compute does it?
So what gives? |
What gives is you totally cannot count on the "to completion" times on AP WUs. More than once I have had them expand, seemingly with no end, until I gave up and aborted the WU.
Yet another reason I don't run SETI much. _________________
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Adam Alexander Prince


Joined: 25 Oct 2008 Posts: 1626 Location: The looNItic fringe
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Posted: Thu Mar 05, 2009 5:14 am Post subject: Re: A shrub too far? |
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Lloyd M. wrote: | Old woman(mann, sorry) wrote: | So far it has had 112:04 hours of time from an AMD2000 (1667Mhz).
Time left is 286:32, which is 27.2% ???
Doesn't compute does it?
So what gives? |
What gives is you totally cannot count on the "to completion" times on AP WUs. More than once I have had them expand, seemingly with no end, until I gave up and aborted the WU.
Yet another reason I don't run SETI much. |
I've had that happen a few times, too. Very irritating _________________
Currently running:
Active
Intel Core 2 Quad 9550
Reserves
Now down to one Intel Core 2 Quad Q6700 that's in a tiny case and overheats if I actually try to use all four cores at the same time. On the other hand, it makes for a very nice home theater PC
Intel Core i7 CPU 920
AMD Athlon(tm) 7850 |
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Idan UN-Smitten


Joined: 07 Dec 2005 Posts: 2993 Location: Tel-Aviv, Israel
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Posted: Thu Mar 05, 2009 5:43 am Post subject: |
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You know you guys can uncheck the box for getting AP WUs at the SETI@Home prefences in your account right?  _________________ Anyone for Crunch?
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Adam Alexander Prince


Joined: 25 Oct 2008 Posts: 1626 Location: The looNItic fringe
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Posted: Thu Mar 05, 2009 5:46 am Post subject: |
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Idan wrote: | You know you guys can uncheck the box for getting AP WUs at the SETI@Home prefences in your account right?  |
Yep. I had it unchecked for quite awhile and for some reason checked it again the other day and wound up with an AP WU that went on for days.  _________________
Currently running:
Active
Intel Core 2 Quad 9550
Reserves
Now down to one Intel Core 2 Quad Q6700 that's in a tiny case and overheats if I actually try to use all four cores at the same time. On the other hand, it makes for a very nice home theater PC
Intel Core i7 CPU 920
AMD Athlon(tm) 7850 |
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Lloyd M. Prince

Joined: 02 Mar 2007 Posts: 521
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Posted: Fri Mar 06, 2009 12:16 am Post subject: |
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Idan wrote: | You know you guys can uncheck the box for getting AP WUs at the SETI@Home prefences in your account right?  |
D'oh! No!  _________________
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Sir Papa Smurph Cries like a little girl


Joined: 18 Jul 2006 Posts: 4430 Location: Michigan
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Posted: Sat Mar 07, 2009 7:04 pm Post subject: |
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Idan wrote: | You know you guys can uncheck the box for getting AP WUs at the SETI@Home prefences in your account right?  |
It keeps sending them to me anyway... I just abort them
Quote: | Simon, as in Chicken of Angor?? He has been MIA since the rollout of MultiBeam SETI...going on 2 years now... |
Well, it is on his web site, but I found it and Dl'ed it somewhere else. The problem is it tells me to edit the xml and I can't find it, There is no Seti@home xml on my machine...  _________________ a.k.a. Licentious of Borg.........Resistance Really is Futile.......
and a Really Hoopy Frood who always knows where his Towel is...
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Adam Alexander Prince


Joined: 25 Oct 2008 Posts: 1626 Location: The looNItic fringe
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Posted: Sat Mar 07, 2009 7:18 pm Post subject: |
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Sir Papa Smurph wrote: | Idan wrote: | You know you guys can uncheck the box for getting AP WUs at the SETI@Home prefences in your account right?  |
It keeps sending them to me anyway... I just abort them
Quote: | Simon, as in Chicken of Angor?? He has been MIA since the rollout of MultiBeam SETI...going on 2 years now... |
Well, it is on his web site, but I found it and Dl'ed it somewhere else. The problem is it tells me to edit the xml and I can't find it, There is no Seti@home xml on my machine...  |
Did you uncheck the other box that asks if you are willing to run other projects if there's no work available in your preferred projects? _________________
Currently running:
Active
Intel Core 2 Quad 9550
Reserves
Now down to one Intel Core 2 Quad Q6700 that's in a tiny case and overheats if I actually try to use all four cores at the same time. On the other hand, it makes for a very nice home theater PC
Intel Core i7 CPU 920
AMD Athlon(tm) 7850 |
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Lloyd M. Prince

Joined: 02 Mar 2007 Posts: 521
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Posted: Sun Mar 08, 2009 5:59 pm Post subject: Re: A shrub too far? |
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Old woman(mann, sorry) wrote: | So far it has had 112:04 hours of time from an AMD2000 (1667Mhz).
Time left is 286:32, which is 27.2% ???
Doesn't compute does it?
So what gives? |
What gives is that these WUs are quite suited for KWSN, because they are utterly silly.
What I've noticed, more than once, is there is an initial time to completion. I'll go back days later, the CPU time will be some MULTIPLE of the original time to completion (say three times), the new time to completion will be HIGHER than the original time to complete, and the progress will be something like 42%.
I recently gave up on 72 hours processing, because it was past deadline, and the supposed time to completion was still 20+ hours
If I ever crunch SETI again (which I likely won't, unless I get a CUDA-capable GPU), I will probably take Idan's advice and set it so I don't get any Astropulse WUs _________________
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