WIth the OpenMP patch I put together last night, adding two million-element vectors went from about 45ms without OpenMP to about 32ms with OpenMP.
That's evidence that OpenMP is doing *something*, even though the speedup is nowhere near commensurate with the number of cores (8 on this machine).
I wasn't expecting much at this early stage. I am, however, encouraged by the measurable result.
--
"The secret to creativity is knowing how to hide your sources."
Albert Einstein