[colejohnson66]

You’re probably thinking of AVX, Advanced Vector Extensions. That’s a family of vector extensions that has been out for just over a decade (2011). This is about AMX, Advanced Matrix Extensions. AMX is, as the name implies, built around 2D INT8/BF16 matrices (not “1D” FP16/32/64 vectors). It’s not on silicon available to the public.

[xattt]

Also not to be be confused with VMX (AltiVec/Velocity Engine), which predates AVX by another decade or so.

To keep the record straight, we have: 1. AMX, 2. AVX, and 3. VMX.

[colejohnson66]

There’s also Intel VMX, the Virtual Machine Extensions ;) Sometimes it’s referred to as VT-x.