VLIW (Very Long Instruction Word) computing is an architectural approach that aims to improve processor efficiency by having a single instruction direct multiple functional units simultaneously, rather than executing one operation at a time. The key challenge lies in the compiler, which must reschedule sequential program operations into parallel ones that map onto the long instruction words. The video by Asianometry covers the history of VLIW and the compiler challenges involved, set in the era before out-of-order CPU execution existed.
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