Equation 12 · Part 1 · Comparing the Main Approaches to AI Memory Systems and the Bandwidth Wall
Symbol W
What this part means
W is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
W is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol W→Article meaning
The passage around this formula
The fourth approach does not try to widen W or shorten the trip at all. It asks whether the trip is necessary in the first place, and answers by putting a small amount of compute inside or immediately beside the memory array, so that some operations complete without ever crossing the bus that the other three approaches are all trying to make wider, faster or longer-reaching.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the article section
- [9] Aquabolt-XL: Samsung HBM2-PIM with In-Memory Processing for ML Accelerators and Beyond ↗
- [10] Benchmarking a New Paradigm: An Experimental Analysis of a Real Processing-in-Memory Architecture ↗
These citations provide research context; check each source for the exact claim it supports.