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Question about RNGs used in oct files, and multiple instances of Octave


From: Michael Creel
Subject: Question about RNGs used in oct files, and multiple instances of Octave
Date: Fri, 30 May 2014 03:48:56 -0700 (PDT)

Hi all,

I'm using some .oct files that generate random numbers, using Octave's
oct-rand. Typical lines are



If I simultaneously run multiple copies of Octave (using MPI, on Linux), I
understand that each copy will have it's own seed, even if I don't
explicitly set the seed. Is there any particular reason to worry about the
states of the RNGs becoming the same on the different instances? From what I
see, I would say no, but I'd appreciate getting information from those who
know. Also, would it be a better idea to set different seed explicitly?

TIA,
Michael




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