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madmac
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Message 6190 - Posted 6 May 2007 9:35:25 UTC

    Can anyone tell me how long a Wu should last. I have one that is over 3 hrs and only 20% done. Should I abort it or let it carry on?
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    Message 6191 - Posted 6 May 2007 9:57:50 UTC

      On my Athlon X2 4400+, i\'m doing wus 1ad6387... in + 15 hrs.
      And if i was you, i would let the wu carry on.
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      Message 6200 - Posted 6 May 2007 13:25:41 UTC

        Yes it is great fun watching time taken and time to complete times go up and the progress still stays the same at 20%
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        Message 6201 - Posted 6 May 2007 13:43:43 UTC

          In a wu, you have \'lines\'.
          At the end of the processing of a line, the % is updated.
          So during \'some\' time (but how many time ? is the question) you will stay at 0 % then suddenly you will jump to 20 % then 40 %.


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          Message 6203 - Posted 6 May 2007 14:37:38 UTC

            Thanks Nightbird, it seemed to have stuck at 20 so I exited Boinc and then restarted it and it jumped to 40. This was after 6 hrs of work so it looks like a 15 hr WU
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            Message 6204 - Posted 6 May 2007 15:16:58 UTC - in response to Message 6203.

              Thanks Nightbird, it seemed to have stuck at 20 so I exited Boinc and then restarted it and it jumped to 40. This was after 6 hrs of work so it looks like a 15 hr WU

              Ehm, restarting Boinc is not always a good idea here.
              So fingers crossed.


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              Message 6206 - Posted 6 May 2007 16:34:16 UTC - in response to Message 6204.

                Last modified: 6 May 2007 17:02:48 UTC

                Thanks Nightbird, it seemed to have stuck at 20 so I exited Boinc and then restarted it and it jumped to 40. This was after 6 hrs of work so it looks like a 15 hr WU

                Ehm, restarting Boinc is not always a good idea here.
                So fingers crossed.


                Madmac,

                As Nightbird indicated, restarting BOINC here may not be a good idea. The application has a (longstanding) problem related to checkpointing which sometimes causes a \"jump ahead\" after a restart. That is, apparently, when the software tries to revert to a checkpoint and it encounters a faulty one, it immediately ends the line its working on and starts the next one. Your result, therefore, may be invalid. However, the latest version of the application seems to be much less vulnerable to this problem than previous versions - so your result may also be OK.

                Unfortunately, we get very little feedback from the developers/administrators here and what I have described is just a condensed version of a lot of messages from some (very frustrated) users like Nightbird and me.

                Stick

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                Message 6207 - Posted 6 May 2007 20:16:02 UTC

                  Sorry but 15+ hr WUs is not what I want, I would like short ones, this WU is now up to 12 hrs and still at 40% with the completion time now up to around 8 hrs. So what is the longest time a WU has taken? Using a P4 3 Mhz machine.
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                  Message 6209 - Posted 6 May 2007 21:30:20 UTC - in response to Message 6207.

                    Last modified: 6 May 2007 21:39:33 UTC

                    Sorry but 15+ hr WUs is not what I want, I would like short ones, this WU is now up to 12 hrs and still at 40% with the completion time now up to around 8 hrs. So what is the longest time a WU has taken? Using a P4 3 Mhz machine.

                    Presently, that sounds a little difficult to answer.
                    The wus seem \"shorter\" or seem to run better than \"before\".
                    So what\'s \"shorter\" ? i remember wus running more 40 hours on my machines (Athlon64 X2, Barton 3200+) with the \"old\" applications.
                    And we have some recordmen here.

                    Recently, i got 5 wus :
                    3 wus 1a9d6387 -> 16h53, 15h08, 1h44
                    2 wus 0f740a11 -> 17min, 00min49

                    Wu length is with difficulty predictable.

                    In short, if you stay with us, you will need many patience. ;)
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                    Message 6210 - Posted 6 May 2007 21:40:53 UTC - in response to Message 6207.

                      Last modified: 6 May 2007 21:46:14 UTC

                      Sorry but 15+ hr WUs is not what I want, I would like short ones, this WU is now up to 12 hrs and still at 40% with the completion time now up to around 8 hrs. So what is the longest time a WU has taken? Using a P4 3 Mhz machine.

                      Many users have had tasks run until BOINC kills them with a “Maximum CPU time exceeded” error. That would probably be at about 200 hours on a fairly fast system. (I presume you meant 3 GHz!) My own record for a valid result is 774 h, on a Mac G4/400; I guess that would have been about 150 h on a system like yours. (But we’ve also seen huge differences in the times taken for a given WU on different platforms, so ‘conversions’ of this kind are unlikely to be very meaningful.) My 2.3-GHz G5 is currently about 180 h into a five-line task that reached the 80% mark last night; I just hope the remaining line completes soon enough to avoid the maximum-CPU-time error.

                      If you want short or predictable tasks, this is probably not a good project for you. :(

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                      Message 6211 - Posted 6 May 2007 22:11:55 UTC

                        Odysseus is a recordman here.
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                        Message 6216 - Posted 7 May 2007 11:37:59 UTC

                          Madmac chose.
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                          Message 6236 - Posted 10 May 2007 11:30:37 UTC - in response to Message 6210.

                            Last modified: 10 May 2007 11:32:17 UTC

                            Sorry but 15+ hr WUs is not what I want, I would like short ones, this WU is now up to 12 hrs and still at 40% with the completion time now up to around 8 hrs. So what is the longest time a WU has taken? Using a P4 3 Mhz machine.

                            Many users have had tasks run until BOINC kills them with a “Maximum CPU time exceeded” error. That would probably be at about 200 hours on a fairly fast system. (I presume you meant 3 GHz!) My own record for a valid result is 774 h, on a Mac G4/400; I guess that would have been about 150 h on a system like yours. (But we’ve also seen huge differences in the times taken for a given WU on different platforms, so ‘conversions’ of this kind are unlikely to be very meaningful.) My 2.3-GHz G5 is currently about 180 h into a five-line task that reached the 80% mark last night; I just hope the remaining line completes soon enough to avoid the maximum-CPU-time error.

                            If you want short or predictable tasks, this is probably not a good project for you. :(

                            214 hours for the wu on your G5.
                            Ehm, the server is increasing the replication because of \"Checked, but no consensus yet\".

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