Beowulf Questions

Florent.Calvayrac Florent.Calvayrac at univ-lemans.fr
Sat Jan 4 11:04:33 EST 2003


> 
> This is trivial.  Once you get a good a serial pseudo-random number
> generator, you can use a cluster to generate more.

Sorry to disagree here, but you forget that you can not be sure
that the initial seed on one of the machines will not
be generated by another one...so you can end up with
completely correlated series. Check "scalable parallel number
generator" (sprng), working well for us, using different
recurrence formulas on different machines.




-- 
Florent Calvayrac                          | Tel : 02 43 83 26 26 
Laboratoire de Physique de l'Etat Condense | Fax : 02 43 83 35 18
UMR-CNRS 6087         | http://www.univ-lemans.fr/~fcalvay 
Universite du Maine-Faculte des Sciences   |
72085 Le Mans Cedex 9     
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