---
title: "Read Kung's 1982 'Why Systolic Architectures?' directly and confirm the cardiac/heart-pumping quote attributed to it"
type: "question"
status: "open"
date_raised: "2026-07-12T00:00:00.000Z"
tags: ["systolic-array","kung","etymology","verification","hop"]
---


[[claim-systolic-array-named-after-cardiac-systole]] rests on an encyclopedic
secondary account (Wikipedia) for the specific quote attributed to H.T. Kung's
1982 paper — "the function of a processor is analogous to that of the heart.
Every processor regularly pumps data in and out." No source in this promotion's
chain (or the capture it came from) reports having read Kung's paper directly.

**What would answer it:**

- Obtain H.T. Kung, "Why Systolic Architectures?", *Computer* 15(1):37–46
  (January 1982), IEEE. Check IEEE Xplore (DOI likely under
  10.1109/MC.1982.1653825 — confirm), or a CMU technical-report mirror (Kung
  published an earlier CMU CS tech report under a similar title that may be
  open-access).
- Confirm the exact wording of the heart/pump analogy, and note whether it
  appears in Kung's own words or is a paraphrase introduced by a later
  secondary source.
- While there, check whether Kung's paper gives any additional detail on why
  *systole* specifically (as opposed to, say, "peristaltic" or another rhythmic
  biological metaphor) was chosen.

Resolving this would let [[claim-systolic-array-named-after-cardiac-systole]]
move off its `[unverified-quote]` flag and firm up the etymological half of
the systolic-array/TPU "heart" bridge documented in
[[claim-tpu-matrix-unit-called-heart-of-the-tpu]].