Can I avoid crunching the same WU twice?

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Dimitris
Dimitris
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10 Nov 2006 13:41:48 UTC
Topic 192052
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    Here is what happened:
    I had a WU ready and while reporting it, I accidentaly pressed "Suspend".
    Now its' progress is on 0.320%.
    Can I possibly recover the results without crunching this WU again?

    Bruce Allen
    Bruce Allen
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    Can I avoid crunching the same WU twice?

    10 Nov 2006 20:00:58 UTC
    Message 50377
    (moderation:
      )

      Quote:
      Here is what happened:
      I had a WU ready and while reporting it, I accidentaly pressed "Suspend".
      Now its' progress is on 0.320%.
      Can I possibly recover the results without crunching this WU again?

      (1) Highilght workunit
      (2) Push 'RESUME' button

      Cheers,
      Bruce

      Director, Einstein@Home

      Dimitris
      Dimitris
      Joined: 19 Oct 06
      Posts: 4
      Credit: 148900
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      RE: RE: Here is what

      11 Nov 2006 15:54:15 UTC
      Message 50378 in response to message 50377
      (moderation:
        )

        Quote:
        Quote:
        Here is what happened:
        I had a WU ready and while reporting it, I accidentaly pressed "Suspend".
        Now its' progress is on 0.320%.
        Can I possibly recover the results without crunching this WU again?

        (1) Highilght workunit
        (2) Push 'RESUME' button

        Cheers,
        Bruce


        Thanx Bruce, but the problem is exactly that. After I pressed resume, progress for this WU dropped from 100% to 0%.

        Bruce Allen
        Bruce Allen
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        Joined: 15 Oct 04
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        RE: RE: RE: Here is

        18 Nov 2006 17:31:39 UTC
        Message 50379 in response to message 50378
        (moderation:
          )

          Quote:
          Quote:
          Quote:
          Here is what happened:
          I had a WU ready and while reporting it, I accidentaly pressed "Suspend".
          Now its' progress is on 0.320%.
          Can I possibly recover the results without crunching this WU again?

          (1) Highilght workunit
          (2) Push 'RESUME' button

          Cheers,
          Bruce


          Thanx Bruce, but the problem is exactly that. After I pressed resume, progress for this WU dropped from 100% to 0%.

          The only reason I can think of is that you have your preference setting "don't write to disk more often than XXX" set to such a large value that the app does not checkpoint.

          Cheers,
          Bruce

          Director, Einstein@Home

          Dimitris
          Dimitris
          Joined: 19 Oct 06
          Posts: 4
          Credit: 148900
          RAC: 0

          RE: RE: RE: RE: Here

          21 Nov 2006 10:07:16 UTC
          Message 50380 in response to message 50379
          (moderation:
            )

            Quote:
            Quote:
            Quote:
            Quote:
            Here is what happened:
            I had a WU ready and while reporting it, I accidentaly pressed "Suspend".
            Now its' progress is on 0.320%.
            Can I possibly recover the results without crunching this WU again?

            (1) Highilght workunit
            (2) Push 'RESUME' button

            Cheers,
            Bruce


            Thanx Bruce, but the problem is exactly that. After I pressed resume, progress for this WU dropped from 100% to 0%.

            The only reason I can think of is that you have your preference setting "don't write to disk more often than XXX" set to such a large value that the app does not checkpoint.

            Cheers,
            Bruce

            The "don't write to disk more often than XXX" setting must not be the reason, since a. I never changed the default 60 secs, and b. the result files had already been uploaded to the server.

            I believe that this is a minor bug of the BOINC client. To reproduce it:
            a. Let a WU compute and the result files upload, so the status is [Ready to Report]
            b. Go to the [Projects] tab, select [Einstein@Home] and press [Update]
            c. Quickly go to the [Tasks] tab, select the WU that is reporting and press [Suspend].
            d. Press [Resume] again.

            At step d. the client probably searches for the (already uploaded, thus missing) result files, and since they are not present starts the WU from scratch. (If this is true, then the problem may occur even if step b. is not taken.)

            I tried to trace this in the source code, but gave up after 3 or 4 hours. At the moment I don't have any small WUs, so I don't dare to reproduce this myself. Any help?

            Since this must be affecting any BOINC project, can anyone advise me if there is a more proper place to report this mishap?

            Thanks again for your response Bruce,
            Have a nice day

            PS. I crunched the WU again and reported it fine, so this is not an active problem for me. Also, it was not a problem with the specific WU.

            KSMarksPsych
            KSMarksPsych
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            RE: Since this must be

            21 Nov 2006 17:18:41 UTC
            Message 50381 in response to message 50380
            (moderation:
              )

              Quote:

              Since this must be affecting any BOINC project, can anyone advise me if there is a more proper place to report this mishap?

              Thanks again for your response Bruce,
              Have a nice day

              PS. I crunched the WU again and reported it fine, so this is not an active problem for me. Also, it was not a problem with the specific WU.

              You can try either the BOINC message boards or the email lists.

              Kathryn :o)

              Einstein@Home Moderator

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