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Memory systems / accelerator architecture

LLM decode memory wall: first bytes/token model

This draft separates prefill from decode and builds a first PCCX traffic ledger for weight reads, KV-cache reads, activation movement, and runtime overhead.

Graphical abstract / system summary
PCCX FIGURE PLACEHOLDER

Highlights

  • Decode is treated as a separate workload from prefill.
  • The primary artifact is a bytes/token ledger.
  • Data release will live in an external archive record.

Artifact card

TrackMemory systems / accelerator architecture
StatusDraft
Interface/specPending
Benchmark schemaPending
Known limitationsListed in release manifest
Version compatibilityPending
External archiveArchive pending

Abstract

This draft separates prefill from decode and builds a first PCCX traffic ledger for weight reads, KV-cache reads, activation movement, and runtime overhead.

Motivation

This article defines a PCCX research artifact that can be cited, audited, and updated without turning draft evidence into marketing copy.

Evidence snapshot

The article records what is currently known, what remains unresolved, and what artifact must exist before stronger claims are made.

Method outline

The release package should include metadata, source logs, scripts, figures, checksums, citation files, and a plain-English limitation note.

Reproduce this result

  1. Open the external archive record when published.
  2. Download the manifest and artifact bundle.
  3. Run the parser or notebook listed in the manifest.
  4. Regenerate the figure and compare the checksum.

External archive

Archive pending — Zenodo record will be linked here. Large research files will be hosted through an external archive rather than served directly by pccx.ai.
ProviderZenodo planned
StatusArchive pending
DOIPending
RecordNot yet published

Code availability

Analysis scripts and raw parsers should be released through the project repository or a DOI-backed external archive, then linked here.

Commercial relevance

Defines memory-system requirements for future Evaluation, ProCore scheduler work, and ASICKit memory hierarchy planning.

References

  1. PCCX Research. Article archive record, version 0.1.0-draft.
  2. PCCX artifact metadata and citation records.