千余克黄金"失窃"乌龙 民警细致勘查还原真相
Intel AMX on Xeon4Arm SME on Apple M4Tiles8 TMM registers, 1 KB each4 ZA registers, up to 512 elements eachInputsi8, u8, bf16u1, i8, u8, f16, bf16, f32, f64…OperationInner product: $C \mathrel{{+}{=}} A \cdot B^T$Outer product: $C \mathrel{{+}{=}} a \otimes b$BFloat16 ops8'192 ops/instruction512 ops/instructionInt8 ops16'384 ops/instruction1'024 ops/instructionLatency~16 cy per TDPBF16PS~16 cy amortized per FMOPAA layoutRow-majorColumn-majorB layoutVNNI-like swizzlingColumn-majorBoundary tilesLDTILECFG reconfigures dimensionssvwhilelt predicates — same instructionComposabilityIsolated from AVX-512 — no mixingStreaming SVE available inside SME modeAMX is an isolated accelerator: you configure tiles, run tile multiplies, store results, then return to AVX-512 for everything else.
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