How to obtain Concurrent C Compiler?

[mariam]

Does anyone know how and from where we 
would be able to obtain a (free?)/inexpensive
concurrent C compiler?

Thanks in advance,

Regards,
mariam at unocss.unomaha.edu

P.S. Does any one have N.Gehani's email
address? Do you suggest that perhaps
we (i.e., our CS dept) should contact him
and "beg" him for a free copy?
-- 
Regards,
mariam at unocss.unomaha.edu