Transform a Model

Define the checkpoint, revision, task, target hardware, requested precision, and required evidence. Read the upstream config and reference implementation, then inspect the closest family only as a pattern.

Extend an owner only when checkpoint identity, weight mapping, graph dataflow, native request lifecycle, and correctness contract genuinely match. Otherwise create one new families/<family>/ directory.

Implement one vertical slice

• support.py recognizes exact model metadata and declares supported tasks plus one meaningful default. Zero or multiple owners are errors.
• model.py exposes one plain build(request, writer) function. It owns model config, weights, TensorRT graphs, precision, parallelism, and bundle section semantics. It must not inherit a builder or import another family.
• runtime/CMakeLists.txt builds trtmc_model_<family>. The family factory and pipeline implement the required abstract interface from trtmc/task.h and drive engines through the public backend contract.
• requirements.txt contains only optional packages needed by this family.
• tests/ owns direct build/runtime E2E, manifests, thresholds, fixtures, and focused Python or C++ tests.

Keep model behavior inside the owner even when another family looks similar. Do not modify core merely to reduce duplicated lines. If the requested user behavior cannot be expressed by an existing Task interface, stop and describe the required shared contract before expanding scope.

Prove the smallest real path

First make one exact testcase work end to end:

checkpoint -> support resolution -> family build -> bundle
           -> family DSO -> abstract Task API -> real output

Then run repository ownership checks and the selected family tests:

PYTHONPATH=core/builder:apps/benchmark:. python3 -m tools.model_ci validate
PYTHONPATH=core/builder:apps/benchmark:. python3 -m pytest \
  families/<family>/tests --e2e-model <family> -q
git diff --check

Do not weaken the family oracle or add configuration for an unrequested future case. Report the exact checkpoint, commands, results, hardware, and checks not run before claiming support.