Inside Intel Larrabee - Larrabee Vector Unit Block Diagram

By Scott Ferguson  |  Posted 2008-08-06 Print this article Print

Vector complete instruction set: scatter/gather for vector load/store; mask registers select lanes to write, which allows data-parallel flow control; this enables mapping a separate execution kernel to each VPU lane. Vector instructions support: fast read from L1 cache; numeric type conversion and data replication while reading from memory; rearrange the lanes on register read; fused multiply add (three arguments); Int32, Float32 and Float64 data.

Intel's Larrabee processor is Intel's first multicore processor and first stand-alone graphics card. Larrabee is also a swipe at graphics chip makers Nvidia and Advanced Micro Devices, whose powerful graphics chips are starting to look like a threat to Silicon Valley's king of silicon chips. Intel Larrabee will have numerous x86 processor cores (Intel won't reveal how many processor cores) and support for OpenGL and DirectX, allowing it to run existing games and software requiring high-end graphics.

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