When can we make Squid using multi-CPU?

Hi, Squid current can only use one CPU, but multi-CPU hardware
machines are so popular. These are so greatly wastely. How can we use
the multi-CPU? Can we separate some parallel sections which are CPU
wasting to run on different CPU? OMP(http://openmp.org/wp/) gives us
some thinking about using multi-CPU, so can we use these technology in
Squid?

Thanks

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