[Beowulf] Stroustrup regarding multicore

Lux, James P james.p.lux at jpl.nasa.gov
Wed Sep 3 10:39:27 PDT 2008

On 9/3/08 10:34 AM, "Peter St. John" <peter.st.john at gmail.com> wrote:

I'm thinking that multicore will make topology interesting again, because of the difference between intercore on a common chip vs going through a nic to even the fastest fabric.

Yes, indeed.. Actually, it may be more like deja vu, because the core has it's own little address space, and then the space available through the fabric (which looks a lot, conceptually, like the pile of 386 PC with 10BaseT).  Even more interesting will be that to effectively use them, some conceptual thought will have to be put into effectively using the techniques for communicating among processes, which don't necessarily run in lockstep systolic array fashion (or SIMD).

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