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Random Number Generator In A MPP Database

  • US 20140095526A1
  • Filed: 09/29/2012
  • Published: 04/03/2014
  • Est. Priority Date: 09/29/2012
  • Status: Active Grant
First Claim
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1. A method of generating random numbers on parallel processing segments of a massively parallel processing (MPP) database, comprising:

  • generating the same random number sequence on each segment;

    establishing on each segment a different starting position in the random number sequence generated on said each segment;

    setting a step size that determines return positions in the random number sequence generated on said each segment at which random numbers are returned, the step size being the same on all segments; and

    returning uncorrelated random numbers at said return positions in the random number sequence at said segments.

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