128 bit long double on AMD 64

[Usman W Roshan cis faculty/staff]

Hi,

I've come to know that gcc uses the x87 standard of 80 bit long doubles.
Is there a version that uses all 128 bits for long double? Or perhaps
could you suggest an alternate compiler that does so? I have an AMD 64
cluster and would really like to use 128 bit long doubles for some very
large datasets I am testing. Thank you very much.

Usman Roshan
Assistant Professor
Department of Computer Science
New Jersey Institute of Technology
http://www.cs.njit.edu/usman/