Michael Abrash’s First Look at the Larrabee New Instructions (LRBni)

Dr. Dobb’s just published the first of a new series of detailed articles related to Larrabee hardware and software architecture written by Michael Abrash.

A First Look at the Larrabee New Instructions (LRBni)

Larrabee is an architecture, rather than a product, with three distinct aspects — many cores, many threads, and a new vector instruction set — that boost performance. This architecture will first be used in GPUs, and could be used in CPUs as well.

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One Response to “Michael Abrash’s First Look at the Larrabee New Instructions (LRBni)”

  1. purpledog Says:

    “the vectorization process can be made automatic and compatible with existing code.”
    Out of context, that’s… Well… Pretty funny. But being honest, the next sentence is:
    “Of course, nothing’s ever that easy…”

    The gather/scatter instructions looks like the end of Cuda and its over-convoluted memory model. Amen.

    Also, it seems that nobody made the link between proto and Larrabee yet … Still, the mixture looks *really* explosive to me.

    http://www.boost.org/doc/libs/1_38_0/doc/html/proto.html


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