Automatic parallelization tools on SMPs
 

Hi

How about using automatic parallelization tools on SMPs like (quad core cpus)
Is it effective?
I got a list from Internet
Par4All
CETUS
PLUTO
SUIF compiler
Omni OpenMP Compiler

I would like to parallelize my serial CFD code (c-program) by these to use in smps
Which is the best open-source option in this regard,

Any ideas, experiences --

Thanks in advance