Pseudorandom seeding across OSs

Pedro Gimeno gmpdiscuss at formauri.es
Sat Aug 27 00:10:35 CEST 2011


James Wanless wrote:
> Thanks very much for your response...
> It's actually an (attempted) ECPP output, but my query (I suppose :)
> more specifically was wondering why the output shown is different for
> (AFAIK) identical inputs/code/libraries/library-versions/random seeds
> across the two different OSs. Maybe I'm being optimistic hoping output
> would ever be the same for the two - any light you could shed on this
> would be very gratefully received (I don't _think_ there are any obvious
> bugs remnant in the code itself, but...?)

The random numbers should be the same regardless of arch. Please see
http://www.gmplib.org/list-archives/gmp-devel/2010-September/001642.html
(and the rest of the thread if interested).

If that's not the case, you might have found a bug in GMP. Please read
this guide on how to report it:
http://www.gmplib.org/manual/Reporting-Bugs.html

The most important part is to include a self-contained test case that
illustrates the problem.

Thank you.
-- Pedro Gimeno


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