[R-SIG-Mac] Snow package --> Results

[Naji]

First, many thanks to Simon Urbanek for his help.

A simulation case (50x34x5x3 & 250 replications) each based on behavior of
2500 consumers takes
- 2h20mins on a laptop (2 MHz, 1Go, WinXp)
- 1h on a G5 bi-proc (2.5 Mhz, 2Go)
A loop was used for the laptop, the same loop was transposed as function for
the Mac

Best regards
Naji