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NewPGen 2.4 available.

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  • Paul Jobling
    Hi all, There is a new minor release of NewPGen available at: http://www.utm.edu/research/primes/programs/NewPGen/ This release includes the following: - If
    Message 1 of 2 , Feb 1 1:38 AM
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      Hi all,

      There is a new minor release of NewPGen available at:

      http://www.utm.edu/research/primes/programs/NewPGen/

      This release includes the following:

      - If the bitmap is too small to sieve the range that you want to sieve,
      NewPGen will break it up and sieve each in turn up to 1 billion before
      recombining them and sieving as normal. So if the bitmap can only hold 1
      million k's and you want to sieve 10 million k's, NewPGen will sieve the k's
      from 1 to 1 million (up to p=1 billion); then the k's from 1 million to 2
      million (up to p=1 billion); etc, then it will combine the results of these
      together before sieving on from 1 billion.

      I have used this a lot myself while testing the software and it means that you
      don't now need a huge amount of RAM to sieve wide ranges.

      - The "Iterations between automatic saves" has been turned into "Minutes
      between automatic saves"

      - The k.2^n sieves run ~5% faster on some processors

      Regards,

      Paul.


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    • Robert Sitton
      Is it possible to get the source to this package or other prime number packages? Robert L. Sitton Software Engineer ICQ: 28332295 Fax: 303-975-6336 Daring
      Message 2 of 2 , Feb 1 5:40 AM
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        Is it possible to get the source to this package or other prime number
        packages?

        Robert L. Sitton
        Software Engineer
        ICQ: 28332295
        Fax: 303-975-6336

        Daring ideas are like chess men moved forward. They may be beaten, but they
        may start a winning game.-- Goethe

        -----Original Message-----
        From: Paul Jobling [mailto:Paul.Jobling@...]
        Sent: Thursday, February 01, 2001 3:38 AM
        To: Primes-L (E-mail); Primeform (E-mail)
        Subject: [PrimeNumbers] NewPGen 2.4 available.

        Hi all,

        There is a new minor release of NewPGen available at:

        http://www.utm.edu/research/primes/programs/NewPGen/

        This release includes the following:

        - If the bitmap is too small to sieve the range that you want to sieve,
        NewPGen will break it up and sieve each in turn up to 1 billion before
        recombining them and sieving as normal. So if the bitmap can only hold 1
        million k's and you want to sieve 10 million k's, NewPGen will sieve the k's
        from 1 to 1 million (up to p=1 billion); then the k's from 1 million to 2
        million (up to p=1 billion); etc, then it will combine the results of these
        together before sieving on from 1 billion.

        I have used this a lot myself while testing the software and it means that
        you
        don't now need a huge amount of RAM to sieve wide ranges.

        - The "Iterations between automatic saves" has been turned into "Minutes
        between automatic saves"

        - The k.2^n sieves run ~5% faster on some processors

        Regards,

        Paul.


        __________________________________________________
        Virus checked by MessageLabs Virus Control Centre.


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