Mysterious 16-Tile & 32-Tile AMX Implementations Talked Up For More Performance

A cryptic Linux kernel mailing list post from x86 architecture expert Christian Ludloff describes 16-tile and 32-tile implementations of Intel's Advanced Matrix Extensions (AMX), far beyond the current 8-tile maximum found in Intel Xeon CPUs. The post hints that such implementations have already been running at large scale, likely from a third-party x86 vendor other than Intel or AMD. The discussion also touches on upcoming AI Compute Extensions (ACE) planned for future AMD and Intel CPUs, and notes oversights in the AMX, APX, and ACE specifications. The identity of the organization behind these larger tile implementations remains undisclosed.

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