ywkang 7f437a20bd paper(platform): edit-pass through §2 KernBench Platform done ...

- Reordered §2 subsections to follow the SIP → CUBE → PE → graph
  flow: Why KernBench → Device and execution model → Latency model
  → Modeled hardware configuration. Readers now meet the device
  hierarchy before the graph abstraction that re-uses it.
- §2.2 Device and execution model: starts with the SIP/CUBE/PE
  hierarchy paragraphs (each anchoring fig:sip-arch, fig:cube-arch,
  fig:pe-arch); then the runtime-API/sim-engine/components bullet
  list; then the atomic-vs-composite command distinction (corrects
  the prior over-narrow framing that read every PE command as
  composite -- atomic single-engine commands exist too, and PE_CPU
  itself runs control-plane work directly).
- §2.3 Latency model: opens with the four-contribution decomposition
  (per-node overhead, per-edge transmission, drain, queuing delay)
  and the latency_model schematic; retains existing The hardware as
  a graph / From graph to DES / Latency contributions / Congestion
  / Control-plane cost model / Accuracy paragraphs. Accuracy
  paragraph now closes on KernBench's sufficiency for *relative*
  HW/SW design trade-offs given analytic + external-simulator
  agreement.
- New figures and assets:
  - figures/sip_architecture.pdf  (SIP-level graph view)
  - figures/cube_architecture.pdf (CUBE-level zoom-in)
  - figures/latency_model.png      (conceptual latency-model
                                   schematic with per-node /
                                   per-edge / drain / queuing-delay
                                   colour coding)
  - figures/pe_architecture.png    (carried over)
- Source-of-truth generator for the latency schematic:
  scripts/paper/paper_latency_model_diagram.py (a report-only
  harness under scripts/paper/ per the /paper isolation rule).
- main.tex preamble: \usepackage{tikz} added (kept from prior
  sequence-diagram draft -- harmless now that the latency model is
  a PNG; left in to keep paragraph numbering stable).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-06-15 17:17:19 -07:00

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