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neuron-tai/.scratch/distributed-gguf-runtime/evidence/DGR-036/BLOCKED.md

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DGR-036 real-model lane blocker

DGR-036 cannot receive completion credit yet. The live standalone worker is DGR-033's FakeShardEngine, a CRC/echo fixture; DGR-037's real llama.cpp ShardEngine binding has not been implemented. Consequently no code path can execute a whole or ranged dense GGUF and no real prefill/logit or greedy-token parity result exists.

The deterministic two-process fake-worker regression is implemented in tests/test_native_shard_worker.py, but this sandbox cannot open loopback sockets (PermissionError: [Errno 1] Operation not permitted), so that runtime test needs host-side execution as well.

Unblock in this order:

  1. Complete DGR-037's real ranged llama.cpp worker binding without changing the DGR-035 dense boundary contract.
  2. Provision a small exact dense GGUF on mounted-drive storage and record its artifact/split hashes plus runtime/backend/hardware/network identity.
  3. Run whole-model and two-range prefill comparison, then record at least 32 greedy token IDs against the locked tolerance and retain raw metrics.
  4. Run the deterministic two-process test on a host with loopback sockets, then update README.md and only then set prd.json completion truth.