b56a4f2e6b
CP shared KV and HiCache now keep page-aligned physical ownership while preserving valid-token radix semantics. Repeated tiny EAGLE exact hits free duplicate tail pages instead of leaking one allocator page, owner-lane load-back uses page-vector admission/eviction, and single-DP idle schedulers avoid entering an unnecessary MLP-sync collective. The commit also records the current page-aligned cache contract and adds gated decode-side EAGLE accept diagnostics so future accept-length collapses can be tied to draft KV/state transfer evidence instead of more prefill cache speculation. Constraint: CP HiCache allocator ownership is page-granular while radix matching remains valid-token based. Constraint: New diagnostics must be gated and must not alter normal EAGLE, transfer, or cache behavior. Rejected: Padding short requests to cp_size or 2*cp_size pages | wastes KV capacity and still hides valid-tail lifecycle bugs. Rejected: Adding more unconditional collectives to prove CP consistency | hot-path collectives previously caused severe performance risk. Confidence: medium Scope-risk: broad Directive: Do not reintroduce silent fallback for CP shared KV/HiCache paths; warning-level fallback or fail-fast is intentional. Tested: git diff --check Tested: local py_compile for all modified Python files Tested: remote g0034 container py_compile for modified Python/test files Tested: remote g0034 container PYTHONPATH=python python -m pytest -q test/registered/unit/layers/test_nsa_cp_utils.py test/registered/unit/mem_cache/test_cp_shared_kv_runtime.py test/registered/unit/mem_cache/test_cp_hicache_load_back_owner_lanes.py test/registered/unit/managers/test_scheduler_dp_attn_mixin.py => 114 passed, 5 warnings, 2 subtests passed Not-tested: full ETE traffic rerun after this commit Not-tested: CUDA/TAI kernel benchmark coverage for all production shapes
Registered Tests
Tests under this directory are auto-discovered by run_suite.py via CI registration decorators.
Where Should I Put My New Test?
No server / engine launch required
| What you're testing | Directory | Requires |
|---|---|---|
| Component logic in isolation (cache, scheduler, config, parser, etc.) | unit/<module>/ |
CPU or GPU |
| CUDA kernel correctness | kernels/ |
GPU |
Server / engine launch required (E2E)
| What you're testing | Directory | Requires |
|---|---|---|
| Model inference correctness | models/, 4-gpu-models/, 8-gpu-models/ |
GPU |
| Feature-specific (OpenAI API, LoRA, speculative, distributed, VLM, etc.) | openai_server/, lora/, spec/, distributed/, ... |
GPU |
| Benchmarks (performance, accuracy, stress) | benchmark/ |
GPU |
| Platform-specific | amd/, ascend/ |
Vendor GPU |
See unit/README.md for unit test conventions.