This code runs on AMX co-processor. From the article: > An important distinction is that the AMX:CPU ratio is not 1:1; not every core has its own AMX co-proces

This code runs on AMX co-processor. From the article: > An important distinction is that the AMX:CPU ratio is not 1:1; not every core has its own AMX co-processor. My understanding is there's only 1 of those per regular M1 CPU, maybe 4 on the largest one (Ultra).