An adapters view in the explorer, filtered by the model a held model was
made from; GGUF files told apart as adapter or model by their first bytes;
held adapter files marked; and a model's card attaches and detaches held
adapters of its architecture, refusing models and mismatched architectures.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The serve form asked for weights plus half again plus two gigabytes. That
ignores the one thing that varies most: the KV cache. At the same 16k pool,
the models on the live mirror need from 0.44 GB of cache (Qwen2.5-1.5B, two
KV heads) to 5.25 GB (Gemma-2-9B, 256-wide heads) — so the flat guess
overcounted the small models, which on 7 GB nodes means refusing placements
that fit, and undercounted the ones with wide or many KV heads, which means
an engine killed for memory.
The GGUF header already carries the shape. The reader now also takes each
architecture's block_count, head counts, embedding length and key/value
lengths, reading past general.* until the tokenizer — and a header whose
tokenizer comes first and runs past the fetched bytes still returns what it
has rather than failing. The estimate is weights, plus the f16 KV cache for
the context pool (llama.cpp's --ctx-size, which --parallel divides rather
than multiplies), plus a gigabyte and five percent for the engine. It reuses
the header the servability check already fetched, and the form says what it
is made of. Checked against all twelve GGUF models on the live mirror, whose
shapes read back as their published architectures.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
kev-0.5b declared architecture "ggmlc", which llama.cpp does not know.
It was fetched, catalogued and placed, and failed on every node — while
the answer was in the first kilobytes of the file.
internal/gguf reads a GGUF header (v1-v3) up to general.architecture,
over HTTP with a Range request, and judges it against the architectures
llama.cpp b10991 lists in LLM_ARCH_NAMES (152, copied from the source at
that tag); a vision projector is not a model on its own. An unknown
build is not refused, only not vouched for, and a header that cannot be
fetched does not refuse anything.
Checked in three places: the registry listing (from the architecture
Hugging Face reports with expand[]=gguf, so one request per repository)
shows it and withholds the fetch button; a fetch reads the header and
refuses unless "fetch anyway"; and the model service refuses to add
such a model, which covers the serve form and ctl model add.
Tried on real files: the mirror's qwen2.5-1.5b (qwen2) and bge-m3
(bert), and Qwen2.5-0.5B on Hugging Face through its redirect.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
