CIS490/etc/training_manifest.toml.example
Max 8643192a71 training/fleet: distributed multi-host trainer with capability gating
Symmetric companion to the collection fleet (orchestrator/fleet.py)
but for *training*. Collection is embarrassingly parallel; training
is not (a model is trained at most once across the fleet), so the
receiver coordinates which worker gets which job.

Operator-control surface is etc/training_manifest.toml.example —
single canonical file declaring (a) per-host capability + per-model
allow/deny policy, (b) one [[jobs]] entry per (model, mode, hyper)
with capability constraints (require_cuda, prefer_cuda, min_vram_gib,
min_ram_gib, allowed_hosts).

Components:

  capability.py — self-detection: hostname, cores, RAM, CUDA presence,
    VRAM, torch version, git commit. Used by workers to filter
    eligible jobs before claiming.

  manifest.py — TOML loader + JobSpec/HostSpec. Job IDs are stable
    sha256 of (model, mode, hyper, split_recipe, train_hosts, seed)
    so manifest reload is idempotent: existing rows keep their status,
    new jobs become claimable, removed jobs stay until cancelled.

  queue.py — SQLite job queue (training_jobs.db) with statuses
    pending|claimed|running|completed|failed|cancelled. Atomic
    claim_next via single UPDATE WHERE status='pending'. Heartbeat,
    complete, fail. Stale-claim sweep (stale_after_s=600s) with
    max_attempts cutoff to failed.

  store.py — model artifact store mirroring receiver/store.py.
    Artifact ID is the sha256 of the uploaded tarball; bit-identical
    re-runs deduplicate.

  receiver.py — Starlette app exposing 11 endpoints:
    POST /v1/job/claim          (worker)
    POST /v1/job/{id}/heartbeat (worker)
    POST /v1/job/{id}/complete  (worker)
    POST /v1/job/{id}/fail      (worker)
    PUT  /v1/model/{id}         (worker — uploads tarball)
    GET  /v1/jobs               (anyone)
    GET  /v1/workers            (anyone)
    POST /v1/job/{id}/cancel    (operator: X-Operator-Token)
    POST /v1/job/{id}/requeue   (operator)
    POST /v1/manifest/reload    (operator)
    GET  /v1/health             (anyone)
    Runs as cis490-trainer-receiver.service on the Pi alongside the
    existing receiver, on a separate port.

  client.py — stdlib HTTP client (urllib only, no new deps).

  worker.py — long-running daemon. Loop: detect capability → claim →
    spawn training/trainer/run.py subprocess → heartbeat every 30s →
    tar artifact, sha256, PUT /v1/model → complete. SIGTERM-safe.

Operator CLI (tools/cis490_jobs.py): status / list / show / cancel /
requeue / reload / workers. Cancel and requeue require
$CIS490_OPERATOR_TOKEN matching the receiver's configured value.

Bootstrap: scripts/install-training-worker.sh (Linux systemd) and
scripts/install-training-worker-windows.ps1 (Windows Scheduled Task)
let the operator enroll a new host with one command after cloning
the repo and setting up the venv. Worker self-tests capability
before registering.

End-to-end smoke verified on the Pi: receiver up, manifest synced,
14 jobs queued, worker registered, claimed 4 CPU-eligible jobs
(allow_jobs=["gbt","mlp"]), completed 3 (gbt-realistic, gbt-oracle,
mlp-oracle), 1 failed with the actual error visible via
cis490-jobs status, 3 artifacts uploaded to
/var/lib/cis490/models/<model>_<mode>/<sha256>/bundle.tar.zst with
proper index.jsonl row.

21 unit tests (manifest validation: 8; queue lifecycle + eligibility:
13). All pass alongside the prior 17 training tests = 38 green.

Open limitations surfaced inline:
  - Hyper-key drift between manifest and run.py fails at training
    time, not at manifest reload (worth tightening to argparse
    introspection later).
  - mTLS not yet wired through Caddy for the trainer-receiver port —
    listens loopback-only until that lands.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 01:20:20 -05:00

216 lines
6.9 KiB
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# CIS490 training fleet manifest — example/template.
#
# This is the ONLY thing the operator edits to control what gets trained
# across the training fleet. Mirrors the collection-side manifest.toml in
# spirit: a single canonical file, no per-host overrides, every host loads
# THIS exact file when it claims its next job.
#
# Copy to /etc/cis490/training_manifest.toml on the Pi (the receiver) and
# the receiver loads it on startup + on SIGHUP. Workers don't read it
# directly; they ask the receiver for jobs that match their capability.
#
# To change the fleet's plan:
# 1. Edit this file
# 2. systemctl reload cis490-receiver (or send SIGHUP)
# 3. New jobs become claimable; in-flight jobs continue
#
# To add a new training host (e.g., your desktop):
# 1. Append it to [hosts.<name>] below with its declared capabilities
# 2. Run scripts/install-training-worker-{linux,windows}.{sh,ps1} on it
# 3. The worker connects, reports its capability, and starts claiming
# jobs whose constraints it satisfies
schema_version = 1
name = "cis490-training-v1"
# --------------------------------------------------------------------
# [defaults] — applied to every job unless the job overrides
# --------------------------------------------------------------------
[defaults]
split_recipe = "host" # host | sample | time
train_hosts = ["elliott-thinkpad"] # which hosts' episodes train; rest = test
seed = 0
n_resamples = 1000 # bootstrap CIs
# --------------------------------------------------------------------
# [hosts.<name>] — declared capability for each known training host
# --------------------------------------------------------------------
# These declarations are *advisory*. The worker ALSO self-detects
# capability at startup; the receiver intersects the two and uses the
# more restrictive set. So if you say a host has a 2070 Super here but
# the worker doesn't actually find CUDA, the worker is treated as CPU-only
# and won't claim cuda-required jobs. This prevents misconfiguration.
[hosts.office-print]
description = "the Pi (receiver). CPU-only, slow. Useful for GBT smoke runs."
priority = 0 # higher number = pick this host first when multiple eligible
allow_jobs = ["gbt", "mlp"] # whitelist of model names this host may run
deny_jobs = [] # blacklist; deny wins over allow
[hosts.spectral-desktop]
description = "operator desktop. RTX 2070 Super (~8 GiB VRAM)."
priority = 100
# allow_jobs = [] # empty list (or absent) = all jobs allowed
# Add more hosts here as you enroll them. Names must match the worker's
# self-reported hostname (or its FLEET_HOST_ID env var override).
# --------------------------------------------------------------------
# [[jobs]] — the training plan. One entry per (model, mode) you want
# trained. Add or remove freely; the receiver re-syncs the queue
# against the file on SIGHUP.
# --------------------------------------------------------------------
# ============ Tier 1: tree + dense baselines (CPU-friendly) ============
[[jobs]]
name = "gbt-realistic"
model = "gbt"
mode = "realistic"
priority = 100 # higher = picked first when multiple eligible
require_cuda = false # no GPU needed; CPU is fine
min_ram_gib = 4
[[jobs]]
name = "gbt-oracle"
model = "gbt"
mode = "oracle"
priority = 100
require_cuda = false
min_ram_gib = 4
[[jobs]]
name = "mlp-realistic"
model = "mlp"
mode = "realistic"
priority = 90
require_cuda = false # tiny MLP — CPU OK, GPU nice
min_ram_gib = 4
# hyper.* keys must match flags accepted by training/trainer/run.py
# (currently: --epochs, --batch-size, --lr, --patience). Architecture-
# specific knobs (hidden, n_layers, dropout) are baked into the model
# class defaults; override them by editing the model file rather than
# via the manifest until run.py grows the corresponding flags.
hyper.epochs = 60
hyper.batch_size = 1024
hyper.lr = 1e-3
[[jobs]]
name = "mlp-oracle"
model = "mlp"
mode = "oracle"
priority = 90
require_cuda = false
min_ram_gib = 4
# ============ Tier 2: sequence models (GPU strongly preferred) =========
[[jobs]]
name = "cnn-realistic"
model = "cnn"
mode = "realistic"
priority = 80
require_cuda = false # 1D-CNN is small enough to run on CPU
prefer_cuda = true # but route to a GPU host if available
min_vram_gib = 1
hyper.epochs = 60
hyper.batch_size = 512
[[jobs]]
name = "cnn-oracle"
model = "cnn"
mode = "oracle"
priority = 80
require_cuda = false
prefer_cuda = true
min_vram_gib = 1
[[jobs]]
name = "gru-realistic"
model = "gru"
mode = "realistic"
priority = 70
require_cuda = true # RNNs slow on CPU; require GPU
min_vram_gib = 2
[[jobs]]
name = "gru-oracle"
model = "gru"
mode = "oracle"
priority = 70
require_cuda = true
min_vram_gib = 2
[[jobs]]
name = "lstm-realistic"
model = "lstm"
mode = "realistic"
priority = 60
require_cuda = true
min_vram_gib = 2
[[jobs]]
name = "lstm-oracle"
model = "lstm"
mode = "oracle"
priority = 60
require_cuda = true
min_vram_gib = 2
[[jobs]]
name = "transformer-realistic"
model = "transformer"
mode = "realistic"
priority = 50
require_cuda = true
min_vram_gib = 4
hyper.epochs = 80
hyper.batch_size = 256
[[jobs]]
name = "transformer-oracle"
model = "transformer"
mode = "oracle"
priority = 50
require_cuda = true
min_vram_gib = 4
hyper.epochs = 80
hyper.batch_size = 256
# ============ Tier 3: self-supervised pretrain (GPU recommended) =======
[[jobs]]
name = "transformer-ssl-realistic"
model = "transformer_ssl"
mode = "realistic"
priority = 40
require_cuda = true
min_vram_gib = 4
hyper.epochs = 100
hyper.target_fpr = 0.05
[[jobs]]
name = "transformer-ssl-oracle"
model = "transformer_ssl"
mode = "oracle"
priority = 40
require_cuda = true
min_vram_gib = 4
hyper.epochs = 100
# Notes on the priority field:
# - Higher number = claimed first when multiple jobs are eligible
# - Tier 1 (cheap, fast, foundational) > Tier 2 (slower) > Tier 3 (research)
# - You can override on a per-job basis if e.g. you want to rush a
# specific architecture
#
# Notes on require_cuda vs prefer_cuda:
# - require_cuda = true: only CUDA workers can claim
# - prefer_cuda = true: any worker can claim, but CUDA workers are preferred
# (the receiver waits ~5 min for a CUDA worker
# before letting a CPU worker take it)
#
# Notes on hyperparameters:
# - All hyper.* keys are passed to training/trainer/run.py as --<key>
# - Unset keys fall back to the trainer's defaults
# - The receiver hashes the full (model, mode, hyper) blob into job_id
# so the same job always produces the same id; re-queueing is idempotent