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Thread: Next project

  1. #1
    Old Timer jasong's Avatar
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    Next project

    From distributed.net site:

    :: 26-Oct-2008 09:52 GMT (Sunday) ::

    Dear friends,

    It is with great excitement that we announce our upcoming project to
    find the Optimal Golomb Ruler with 26 marks. Optimal Golomb Rulers
    have many applications including sensor placements for X-ray
    crystallography and radio astronomy. Golomb rulers can also play a
    significant role in combinatorics, coding theory and
    communications. Dr. Golomb was one of the first to analyze them for
    use in these areas.

    New clients and proxies will be required to support the new project,
    which we are calling "OGR-NG". The new clients will have version
    2.9101.507 or higher. Clients with version numbers prior to this will
    only be able to work on the RC5-72 project. Similarly, Personal Proxy
    version 343 or higher is required.

    Updated clients and proxies are being made available for early-adopter
    testing at http://www.distributed.net/download/prerelease.php for many
    major platforms. Builds for additional platforms are gradually being
    produced and will be made available on that page as soon as
    possible. If you do not feel comfortable helping with this
    early-adopter testing and reporting bugs, then we recommend waiting
    for a few days when we will move those clients to the official release
    page. Not all of our public keyservers have finished upgrading to the
    new version, so not all will have OGR-NG workunits yet. Stats for the
    new project will also be launching in a couple of days. As with all of
    our pre-release software, we encourage you to file bug reports for any
    problems you find at http://bugs.distributed.net/

    The OGR node rate for these new clients may appear to be slower than
    those for the OGR-25p2 project. This isn't a cause for concern. The
    effective search rate for the overall project is actually more
    efficient as these new clients are using an improved algorithm. The
    new algorithm is named FLEGE (Feiri-Levet Enhanced GARSP Engine). It
    has been developed by Didier Levet and Michael Feiri over the course
    of the past few months. We are especially grateful to them for this
    Herculean effort. In technical terms, the number of elements in the
    'choose lookup table' has been increased from 48K to 2M
    elements. Although this will slightly increase the size of the dnetc
    binary, this optimization will significantly reduce the number of
    nodes that we have to search through, sometimes a node improvement of
    ten-fold or more.

    We estimate that OGR-26 will take much less time to complete than
    OGR-25 and will probably be more similar to OGR-24, in terms of
    computational effort. Beyond that, we're looking forward to OGR-27 and
    OGR-28 because the current solutions to at least one of the two is
    very likely not optimal. OGR-26 is on the way and must be done first
    since higher-order rulers depend on the proven optimality of previous
    ones.

    We are grateful for your continuing support and enthusiasm.

  2. #2
    Old Timer jasong's Avatar
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    Sorry if this has been posted elsewhere on free-dc.org , I like the whole "first post" idea. But, despite appearances, I don't like looking like an idiot. (Goofy yes, idiot, definitely not)

  3. #3
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    Quote Originally Posted by jasong View Post
    Sorry if this has been posted elsewhere on free-dc.org , I like the whole "first post" idea. But, despite appearances, I don't like looking like an idiot. (Goofy yes, idiot, definitely not)
    http://www.free-dc.org/forum/showthread.php?t=16567


  4. #4
    Old Timer jasong's Avatar
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    Quote Originally Posted by Helix_Von_Smelix View Post
    lol, oh well.

    One question, though I think people will only have opinions and no proof. They say it will be about as much computation as OGR-24. Do you guys think they meant time-wise, or were they literally talking about computation? Because if they were being literal, we might be up to OGR-29 or 30 in a few years.

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