Find a file
russell@unturf.com d0857fb43d
phase 1b: --shard rank/total + parallel Makefile targets
Workers each parse the full SQL stream but only emit rows whose index
satisfies (idx % total == rank). N processes cooperate against a
single shared SQLite file; WAL+synchronous=NORMAL handles writer
contention via BEGIN IMMEDIATE serialization.

Implementation chose OS-level processes over in-process mp.Queue: the
gain ceiling is identical (writer is the bottleneck either way) and
the surface area is one new flag plus stride-filter logic instead of
a queue-based pipeline with picklable workers.

Makefile gains:
  ingest-cur-parallel SHARDS=4
  ingest-old-parallel SHARDS=4

Benchmark on 20k cur articles:
  serial            55.3 s   361 docs/s   1.0x CPU usage
  4-way parallel    43.1 s   464 docs/s   ~3.0x CPU usage   1.28x wall

Both runs landed 19,999 unique documents — correctness verified.

The write-lock is now the bottleneck; further gains require Phase 2
attach-forever sharding (each shard owns its own SQLite file, queries
fan out via ATTACH DATABASE, zero merge cost).
2026-04-27 11:10:25 -04:00
aborist phase 1b: --shard rank/total + parallel Makefile targets 2026-04-27 11:10:25 -04:00
tests prepare full Wikipedia 2003-05-16 ingest: cur + old (revisions) 2026-04-27 08:10:42 -04:00
.gitignore phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
CLAUDE.md update CLAUDE.md: real orientation for the working repo 2026-04-27 10:41:20 -04:00
LICENSE phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
Makefile phase 1b: --shard rank/total + parallel Makefile targets 2026-04-27 11:10:25 -04:00
pyproject.toml add Q&A layer: v9.8 providence_cache writes with Merkle-bound proofs 2026-04-27 08:01:23 -04:00
README.md phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00

aborist

An arborist for trees and forests of cross-linked information.

Aborist ingests documents into a content-addressed, Merkle-committed store. Every document carries a URI for backtrack and cross-link. Search hooks return hits with declared audit modes (STRICT / HYBRID / VISUAL) so callers never overclaim what a result actually proves.

Design

Aborist implements the runtime spec from Merkle-AGI v9.8 / Merkle Providence Reverse RAG. The 8-dim admissibility key (source_root, question_hash, model_profile_hash, conversation_hash, governance_policy_hash, schema_version, canonicalization_version, chunking_version) plus falsification state ensures cached records are never reused under drift.

Two layered document kinds:

  • surface — diverse ingested content (full chunks, FTS-indexed)
  • core — distilled records (haiku/equation/snippet) Merkle-signed back to source surface roots via derivations

Reversible eviction via chunk tier ∈ {hot, warm, cold}. Cold = leaf hash

  • URI only; rehydratable from URI, identity verifiable via leaf hash.

Quick start

make all            # bootstrap + fetch + ingest + verify + stats
make search Q='…'

License

AGPL-3.0-only.