neuron-tai/.scratch/distributed-gguf-runtime/evidence/DGR-018/BLOCKED.md

DGR-018 — BLOCKED: no 256-GiB-class oracle host

Recorded: 2026-07-14 (MAINT-003). Preflight scripts preserved at commit a0f28b5 ("chore: preserve DGR-018 preflight scripts (postponed)").

Blocker

DGR-018 requires a 256-GiB-class host with at least 224 GiB runtime-accessible memory (the DGR-017 experimental hard-fit floor for the whole-model UD-IQ1_S oracle) and 250 GB free storage on one filesystem outside /home (216.715 GB artifact plus resume/temp headroom). The available development host fails both gates, so the whole-model oracle cannot be established. Per the issue's finish contract, no smaller model may be substituted.

DGR-019 (needs the DGR-018 oracle for parity certification) and DGR-020 (needs DGR-018 and DGR-019, plus enough physical consumer nodes that no single node admits the whole recipe) are blocked transitively.

Exact preflight output

Command (offline; resolves everything from the pinned target manifest and never contacts the network):

$ python scripts/glm_whole_model_preflight.py
target: UD-IQ1_S 216.715 GB, 6 shards @ abc55e725277
[FAIL] storage: need >= 250 GB free on one filesystem outside ['/home']; observed no eligible filesystem
[FAIL] memory: need >= 224 GiB runtime-accessible memory (DGR-017 experimental hard-fit floor); observed 124.9 GiB MemTotal
destination: NONE — no filesystem outside ['/home'] has 250 GB free
  - /run/media/popov/DATA (ext4): 74.2 GB free
  - / (ext4): 51.1 GB free
  - /run/media/popov/Windows (fuseblk): 26.0 GB free
  - /run/media/popov/d (fuseblk): 5.1 GB free
verdict: fail
$ echo $?
1

Host: Linux 7.0.14-101.fc43.x86_64 x86_64, MemTotal: 130997376 kB (124.9 GiB). The full machine-readable report (including the ordered download/verify plan against revision abc55e72527792c6e77069c99b4cb7de16fa9f23, manifest SHA-256 0b6aed04479d204902bb64c0203f1a46cab26a47b378ecccf85237b63f6c1962) is in preflight.json.

How to resume

1. On a qualifying host, run python scripts/glm_whole_model_preflight.py (optionally --dest DIR); it must exit 0 with verdict: pass.
2. Download shards in the preflight's ordered plan; verify each with python scripts/verify_glm_shards.py before the next transfer starts.
3. Proceed with the DGR-018 issue (.scratch/distributed-gguf-runtime/issues/18-certify-whole-model-glm-5-2-runtime-semantics.md).