S4 search will take more than 200 days to complete

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Anonymous
1 Feb 2006 6:37:48 UTC
Topic 13260
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    Hi Paul,

    Quote:
    Ok, now the question is, why does this matter?

    Participants have requested this feature in the past. I also think it is nice to be able to see the overall progress of the project.

    Quote:


    Other than you would like to get it done sooner. :)

    WHat I mean is, is S5 running now, and by 200 days from now we will be collecting data for S6 even though we have not started processing the data for S5?

    S5 started in November and will be running for over a year! We should have lots of data to look at. E@H is only a small part of the LIGO project so they will collect data whether E@H can keep up or not.

    Quote:

    That is the only point that is not clear. All of the major projects would like more people. Heck, as far as I know the only project that may be at saturation (for the moment) is SETI@Home though I stopped doing work there so this may no longer be an issue ... :)

    It is worth noting that the more computing power E@H has the more likely we are to find a gravitational wave. That is to say that the scientists can tune the search to find a weaker signal in exchange for using more computing power.

    BTW, If you post questions like this question in the Science forum you will be more likely to get a response from someone who is truly knowledgeable like Ben Owen.

    Bruce Allen
    Bruce Allen
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    S4 search will take more than 200 days to complete

    2 Feb 2006 5:04:38 UTC
    Message 2786
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      Quote:

      May I ask you to add a line 'Oldest Pending Result', similar to 'Oldest Unsent Result'?

      OK, I am sitting in bed with my laptop trying this out. The bad news is that the query is very slow:

      select min(received_time) from result where server_state=5 and outcome=1 and (validate_state=0 or validate_state=4) ;

      If this query takes a long time to run it may be too heavy to put into the server_status page (which is already a pig).

      David Hammer
      David Hammer
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      RE: I think this is a great

      2 Feb 2006 7:34:09 UTC
      Message 2787
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        Quote:

        I think this is a great feature, it does help to understand and see where the project is at ... so, I was just curious since the article/invitation was on the front page ...

        Also, the request was for more people to do that work, hence throughput, hence number crunching ...

        Oops, I thought you were talking about the server_status page. I think I at least partially answered your question though.

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