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esh-pfi-infrastructure/persistent-memory.d/2026-07-14-nvfp4-llm-compressor-compressed-tensors-gives-no-batch.md
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vh d710e56aca memory: migrate persistent-memory.md to two-tier index (53 detail files)
Split the 53 over-threshold dated log entries (Recent decisions, Tried
and abandoned) into per-entry persistent-memory.d/<slug>.md detail files,
leaving one-line pointers in the index; the 10 short entries stay inline.
Startup index drops 60,527 -> 25,256 bytes (492 -> 270 lines); entry
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is unchanged; both archival back-references preserved.

CLAUDE.md persistent-memory section now documents the index<->detail read
discipline (read the index, pull details on demand, never bulk-read the
dir, commit both together).

Auto-archival still held every dated entry back (all <30 days old); the
July burst begins aging past the 30-day guard ~2026-07-31.
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  • [2026-07-14] NVFP4 (llm-compressor / compressed-tensors) gives NO batch-1 speedup over GGUF for the Qwen3.5 GDN-hybrid, and its MTP is 0%-accept. Measured base NVFP4 no-MTP ≈53 tok/s decode vs the GGUF NEO-CODE seat ~59.5 (llama.cpp wins single-stream; NVFP4's edge is concurrency, and this hybrid is bandwidth-bound at batch-1 with the BF16 linear_attn/GDN layers dominating). MTP spec-decode = 0% acceptance (vLLM's Qwen3_5MTP drafter won't load the bf16 mtp weights off a compressed-tensors main model → Parameter … not found in params_dict, Avg Draft acceptance rate: 0.0%). Pantheon is identical — its "working NVFP4+MTP" was working structure, never real acceleration. Working native MTP needs the modelopt main-model format (AEON, ~3.3/3 accept). LESSON: don't expect a faster single-stream seat from an llm-compressor NVFP4 quant of this arch; the MTP multiplier is the whole point and it requires modelopt.