feat(eval): add run_benchmark.ps1 — full benchmark pipeline for issue #153

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KoalaTrapLord committed 2026-03-29 05:13:21 -04:00
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#!/usr/bin/env pwsh
<#
.SYNOPSIS
Commander AI Lab — full benchmark pipeline (Issue #153)
.DESCRIPTION
Chains all four steps of the Forge-vs-Synthetic eval benchmark:
1. Train baseline model (synthetic self-play)
2. Train Forge model (--data-source forge)
3. Eval both checkpoints vs Forge built-in (200 games each)
4. Compare results with Fisher's exact test
Writes all artefacts to:
ml/models/checkpoints/baseline-synthetic/
ml/models/checkpoints/forge-trained/
results/eval-baseline.json
results/eval-forge.json
results/compare-result.json ← pass/fail verdict
.PARAMETER Iterations
PPO training iterations for each model. Default: 100
.PARAMETER EpisodesPerIter
Self-play / Forge episodes per iteration. Default: 64
.PARAMETER EvalGames
Evaluation games per model. Default: 200
.PARAMETER Threads
Parallel Forge workers for eval. Default: 4
.PARAMETER Seed
Optional RNG seed (passed to both eval runs for reproducibility).
.PARAMETER ForgeResultsDir
Directory where Forge writes ml-decisions-forge-*.jsonl files.
Default: results
.PARAMETER ForgeBatchId
Batch ID prefix used when the Forge producer writes JSONL files.
Default: forge-batch
.PARAMETER ForgeNumGames
Total Forge games the producer will consume during Forge training.
Default: 256
.PARAMETER MinDelta
Minimum absolute win-rate improvement to pass the benchmark. Default: 0.05
.PARAMETER Alpha
Significance level for Fisher's exact test. Default: 0.05
.PARAMETER SkipTraining
Skip both training steps (use existing checkpoints). Useful for re-running eval only.
.PARAMETER SkipEval
Skip both eval steps (use existing result JSONs). Useful for re-running compare only.
.EXAMPLE
# Full overnight run
.\run_benchmark.ps1
.EXAMPLE
# Quick smoke-test with fewer iterations
.\run_benchmark.ps1 -Iterations 10 -EpisodePerIter 16 -EvalGames 50
.EXAMPLE
# Re-run only the comparison from existing JSONs
.\run_benchmark.ps1 -SkipTraining -SkipEval
#>
[CmdletBinding()]
param(
[int] $Iterations = 100,
[int] $EpisodesPerIter = 64,
[int] $EvalGames = 200,
[int] $Threads = 4,
[int] $Seed = -1,
[string] $ForgeResultsDir = "results",
[string] $ForgeBatchId = "forge-batch",
[int] $ForgeNumGames = 256,
[double] $MinDelta = 0.05,
[double] $Alpha = 0.05,
[switch] $SkipTraining,
[switch] $SkipEval
)
Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"
# ── Paths ──────────────────────────────────────────────────────────────
$BaselineDir = "ml/models/checkpoints/baseline-synthetic"
$ForgeDir = "ml/models/checkpoints/forge-trained"
$BaselineJson = "results/eval-baseline.json"
$ForgeJson = "results/eval-forge.json"
$CompareJson = "results/compare-result.json"
$LogDir = "logs/benchmark"
# ── Helpers ────────────────────────────────────────────────────────────
function Banner([string]$msg) {
$line = "=" * 62
Write-Host ""
Write-Host $line -ForegroundColor Cyan
Write-Host " $msg" -ForegroundColor Cyan
Write-Host $line -ForegroundColor Cyan
Write-Host ""
}
function Step([string]$msg) {
Write-Host "[$(Get-Date -Format 'HH:mm:ss')] $msg" -ForegroundColor Yellow
}
function Ok([string]$msg) {
Write-Host " ✓ $msg" -ForegroundColor Green
}
function Fail([string]$msg) {
Write-Host " ✗ $msg" -ForegroundColor Red
}
function Run([string[]]$cmd) {
$display = $cmd -join " "
Step "Running: $display"
& $cmd[0] $cmd[1..($cmd.Length-1)]
if ($LASTEXITCODE -ne 0) {
Fail "Command failed (exit $LASTEXITCODE): $display"
exit $LASTEXITCODE
}
}
# ── Setup ──────────────────────────────────────────────────────────────
$null = New-Item -ItemType Directory -Force -Path $LogDir, "results" | Out-Null
$SeedArgs = @()
if ($Seed -ge 0) { $SeedArgs = @("--seed", "$Seed") }
$StartTime = Get-Date
Banner "Commander AI Lab — Benchmark Pipeline (Issue #153)"
Write-Host " Iterations : $Iterations"
Write-Host " Episodes/iter : $EpisodesPerIter"
Write-Host " Eval games : $EvalGames"
Write-Host " Eval threads : $Threads"
Write-Host " Seed : $(if ($Seed -ge 0) { $Seed } else { '(random)' })"
Write-Host " Min delta : $($MinDelta * 100)%"
Write-Host " Alpha : $Alpha"
Write-Host " Skip training : $SkipTraining"
Write-Host " Skip eval : $SkipEval"
Write-Host ""
# ══════════════════════════════════════════════════════════════════════
# STEP 1 — Train baseline (synthetic self-play)
# ══════════════════════════════════════════════════════════════════════
if (-not $SkipTraining) {
Banner "Step 1/4 — Training baseline (synthetic)"
$t0 = Get-Date
Run @(
"python", "-m", "ml.training.ppo_trainer",
"--data-source", "synthetic",
"--iterations", "$Iterations",
"--episodes-per-iter","$EpisodesPerIter",
"--checkpoint-dir", $BaselineDir,
"--save-every", "10",
"--eval-every", "5"
)
$elapsed = ((Get-Date) - $t0).TotalMinutes
Ok "Baseline training complete in $([math]::Round($elapsed,1)) min"
Ok "Checkpoints in: $BaselineDir"
} else {
Step "Skipping training (--SkipTraining)"
}
# ══════════════════════════════════════════════════════════════════════
# STEP 2 — Train Forge model
# ══════════════════════════════════════════════════════════════════════
if (-not $SkipTraining) {
Banner "Step 2/4 — Training Forge model"
$t0 = Get-Date
Run @(
"python", "-m", "ml.training.ppo_trainer",
"--data-source", "forge",
"--iterations", "$Iterations",
"--episodes-per-iter", "$EpisodesPerIter",
"--checkpoint-dir", $ForgeDir,
"--forge-results-dir", $ForgeResultsDir,
"--forge-batch-id", $ForgeBatchId,
"--forge-num-games", "$ForgeNumGames",
"--save-every", "10",
"--eval-every", "5"
)
$elapsed = ((Get-Date) - $t0).TotalMinutes
Ok "Forge training complete in $([math]::Round($elapsed,1)) min"
Ok "Checkpoints in: $ForgeDir"
} else {
Step "Skipping training (--SkipTraining)"
}
# ══════════════════════════════════════════════════════════════════════
# STEP 3 — Eval baseline checkpoint
# ══════════════════════════════════════════════════════════════════════
if (-not $SkipEval) {
Banner "Step 3a/4 — Evaluating baseline checkpoint"
# Prefer best_ppo.pt, fall back to latest numbered checkpoint
$BaselinePt = "$BaselineDir/best_ppo.pt"
if (-not (Test-Path $BaselinePt)) {
$BaselinePt = Get-ChildItem "$BaselineDir/ppo_iter_*.pt" |
Sort-Object Name -Descending |
Select-Object -First 1 -ExpandProperty FullName
}
if (-not $BaselinePt -or -not (Test-Path $BaselinePt)) {
Fail "No checkpoint found in $BaselineDir — run training first or remove --SkipTraining"
exit 1
}
Step "Using checkpoint: $BaselinePt"
$t0 = Get-Date
Run (@(
"python", "scripts/eval_policy.py",
"--model", $BaselinePt,
"--games", "$EvalGames",
"--run-id", "baseline-synthetic",
"--out", $BaselineJson,
"--threads", "$Threads"
) + $SeedArgs)
$elapsed = ((Get-Date) - $t0).TotalMinutes
Ok "Baseline eval complete in $([math]::Round($elapsed,1)) min -> $BaselineJson"
# ── Eval Forge checkpoint ──────────────────────────────────────────
Banner "Step 3b/4 — Evaluating Forge checkpoint"
$ForgePt = "$ForgeDir/best_ppo.pt"
if (-not (Test-Path $ForgePt)) {
$ForgePt = Get-ChildItem "$ForgeDir/ppo_iter_*.pt" |
Sort-Object Name -Descending |
Select-Object -First 1 -ExpandProperty FullName
}
if (-not $ForgePt -or -not (Test-Path $ForgePt)) {
Fail "No checkpoint found in $ForgeDir — run training first or remove --SkipTraining"
exit 1
}
Step "Using checkpoint: $ForgePt"
$t0 = Get-Date
Run (@(
"python", "scripts/eval_policy.py",
"--model", $ForgePt,
"--games", "$EvalGames",
"--run-id", "forge-trained",
"--out", $ForgeJson,
"--threads", "$Threads"
) + $SeedArgs)
$elapsed = ((Get-Date) - $t0).TotalMinutes
Ok "Forge eval complete in $([math]::Round($elapsed,1)) min -> $ForgeJson"
} else {
Step "Skipping eval (--SkipEval)"
}
# ══════════════════════════════════════════════════════════════════════
# STEP 4 — Compare results
# ══════════════════════════════════════════════════════════════════════
Banner "Step 4/4 — Comparing results"
if (-not (Test-Path $BaselineJson)) {
Fail "Baseline result not found: $BaselineJson"
exit 1
}
if (-not (Test-Path $ForgeJson)) {
Fail "Forge result not found: $ForgeJson"
exit 1
}
python scripts/compare_eval.py `
--baseline $BaselineJson `
--forge $ForgeJson `
--min-delta $MinDelta `
--alpha $Alpha `
--json-out $CompareJson
$exitCode = $LASTEXITCODE
# ── Final summary ──────────────────────────────────────────────────────
$totalMin = [math]::Round(((Get-Date) - $StartTime).TotalMinutes, 1)
Banner "Benchmark Complete"
Write-Host " Total wall time : $totalMin min"
Write-Host " Baseline JSON : $BaselineJson"
Write-Host " Forge JSON : $ForgeJson"
Write-Host " Compare JSON : $CompareJson"
Write-Host ""
if ($exitCode -eq 0) {
Ok "PASSED — Forge model meets the benchmark threshold."
Write-Host ""
Write-Host " Next steps:" -ForegroundColor Cyan
Write-Host " git add results/eval-baseline.json results/eval-forge.json results/compare-result.json"
Write-Host " git commit -m 'results: forge-vs-synthetic benchmark run'"
Write-Host " git push"
} else {
Fail "FAILED — Forge model did not meet the benchmark threshold."
Write-Host " Check $CompareJson for details." -ForegroundColor Yellow
}
Write-Host ""
exit $exitCode