Intel ISA manual now lists advanced matrix extension (AMX)

Posted on Monday, Jun 29 2020 @ 10:54 CEST by Thomas De Maesschalck
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TechPowerUp latest version of Intel's Architecture Instruction Set Extensions and Future Features Programming reference document offers some details about AMX, a new matrix processing extension that can be used to speed up certain tasks, including machine learning.
Intel describes it as the following: "Intel Advanced Matrix Extensions (Intel AMX) is a new 64-bit programming paradigm consisting of two components: a set of 2-dimensional registers (tiles) representing sub-arrays from a larger 2-dimensional memory image, and an accelerator able to operate on tiles, the first implementation is called TMUL (tile matrix multiply unit)."
AMX will be supported by the "Sapphire Rapids" Xeon CPUs, which are scheduled for a 2021 release.

Intel AMX


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Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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