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OpenNest-Engines/_Template/BENCH-RULES.md
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ajandClaude Opus 5.5 ffd0187fbb docs(template): add BENCH-RULES.md for engine-building runs
Rules for the runs were being made up mid-run (git for rollback, access
to the real-part drawing archive), so each model started under a
different rule set. BENCH-RULES.md writes them down in one place, stamped
into every new engine, so all models work under the same rules:
workspace limits and no searching for other engines, git init plus
commit-per-working-state, the archive as read-only with nothing
customer-identifying kept in the (publishable) engine folder, tests may
only be added to, and what the final report must cover.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-24 12:32:42 -04:00

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3.0 KiB
Markdown

# Bench rules
These rules apply to every model building or optimizing an OpenNest engine, so results can be
compared fairly. `README.md` in this folder covers what counts as an independent engine; this
file covers how the run itself works.
## Your workspace
- You are working in a copy of OpenNest. Your engine is `Engines/OpenNest.Engine.__NAME__/`.
- Work only inside this copy. Do not search the rest of the filesystem, other checkouts of
OpenNest, the network, or any git remote for other nesting engines or earlier versions of
this project. Using another engine's code or results in any form is disqualifying.
- Do not edit `OpenNest.Core`, `OpenNest.Engine`, `OpenNest.Benchmark` or anything else outside
your engine folder, except for throwaway tools under `tools/` and scratch work under
`bench-local/` (see below). If shared code has a bug that blocks you, work around it in your
engine and describe the bug in your report.
## Version control
- At the start, if this copy is not already a git repository, run `git init` in the copy's root
and commit everything as `Initial bench copy` before changing anything.
- Commit every time the engine reaches a working state (it builds and the tests pass), with a
message that says what changed and why, plus any benchmark numbers you measured.
- When an experiment makes things worse, go back to the last good commit rather than
patching forward. Do not rewrite or squash history; the commit log is part of the record
of your run.
- Do not add a git remote or push anywhere.
## Real parts
- Real production drawings are available read-only at `/mnt/rogers/PEP Drawings/Archive`.
Use them to build realistic benchmark jobs.
- Never modify, move or delete anything in the archive.
- Do not copy DXF files into your engine folder, and do not commit archive paths, file names or
part numbers inside your engine folder. The engine folder may be published; these drawings
are customer property. Keep manifests, results and notes that reference the archive under
`bench-local/` in the copy's root instead.
- Final scoring also uses jobs you will not see. Tune for real parts in general, not for the
specific drawings you tested with.
## Tests and scoring
- Keep the starter tests in `tests/` and keep them passing. Add tests; do not weaken,
skip or delete existing ones. If you believe an existing test is wrong, leave it and explain
why in your report.
- Engines are scored by `OpenNest.Benchmark`. Every layout goes through `NestValidator`; an
invalid layout places nothing and pays the unplaced-part penalty, so validity comes before
utilization.
- Benchmark with `--parallel 1` whenever you report timing.
## Your report
When you finish, update `README.md` in your engine folder to replace the template text with:
- the algorithm and why you chose it,
- what you tried that did not work,
- benchmark results (synthetic jobs only in the README; real-part results go in
`bench-local/`),
- any shared-code bugs or improvements you found, with measured numbers, so they can be
upstreamed.