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@@ -0,0 +1,21 @@
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MIT License
|
||||
|
||||
Copyright (c) 2026 vado
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@@ -1,27 +1,157 @@
|
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# 1b — Gensyn open-1b
|
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# open-1b: an independent check, a local run, and a Go GGUF converter
|
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|
||||
Независимая верификация *auditable training* Gensyn **open-1b** и локальный запуск модели.
|
||||
We checked Gensyn's open-1b and its claim of auditable training, then ran the
|
||||
model on our own hardware. The audit uses Gensyn's official harness. The
|
||||
conversion and tooling are Go.
|
||||
|
||||
- **Epic:** vado/1b#1
|
||||
- **Отчёты:** [`reports/`](reports/)
|
||||
- **Тела issue:** [`docs/issues/`](docs/issues/)
|
||||
Links: [announcement](https://www.gensyn.ai/news/introducing-open-1b-auditable-training),
|
||||
[harness](https://github.com/gensyn-ai/open-transformers),
|
||||
[audit app](https://open1b.gensyn.ai/).
|
||||
|
||||
## Итоги (кратко)
|
||||
## hf2gguf
|
||||
|
||||
| Задача | Статус |
|
||||
|--------|--------|
|
||||
| Аудит init-unit open-1b (CPU) | ✅ **MATCH** — `state_hash 16554a11…`; см. [`reports/audit-open1b-init.md`](reports/audit-open1b-init.md) |
|
||||
| Аудит тренировочного интервала | ⛔ заблокирован (нет опубликованного interval-unit + RAM/диск) |
|
||||
| Локальный inference на Arc B580 | ✅ **работает** — Go-конвертер, GGUF байт-идентичен; **~114 tok/s** decode, ~892 prefill, ~3.6 GiB VRAM; см. [`reports/open1b-local-inference.md`](reports/open1b-local-inference.md) |
|
||||
`tools/hf2gguf` is the tool at the center of this repo. It converts a Hugging
|
||||
Face open-1b checkpoint to GGUF and checks the result byte for byte, with no
|
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Python, no torch, and no pip. For open-1b it reproduces llama.cpp's converter
|
||||
output exactly, down to the same SHA-256.
|
||||
|
||||
## Ссылки
|
||||
Why build it this way:
|
||||
|
||||
- Анонс: https://www.gensyn.ai/news/introducing-open-1b-auditable-training
|
||||
- Harness: https://github.com/gensyn-ai/open-transformers
|
||||
- Audit app: https://open1b.gensyn.ai/
|
||||
| | hf2gguf | llama.cpp `convert_hf_to_gguf.py` |
|
||||
| --- | --- | --- |
|
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| Runtime | one Go binary | Python 3 with torch, numpy, transformers, gguf-py |
|
||||
| Setup | `go build` | pip or uv, wheels, pinned versions |
|
||||
| Startup | immediate | imports torch and its chain |
|
||||
| Memory | streams one tensor at a time | loads tensors through torch |
|
||||
| Output check | built-in byte-level `verify` | none |
|
||||
| Output | byte-identical to a reference file | the reference |
|
||||
| Scope | open-1b only | many architectures |
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||||
| Quantization | none, F16 only | many quant types |
|
||||
|
||||
## Ограничения (по состоянию на 2026-09)
|
||||
It is deliberately narrow. It maps one Llama-derived architecture and copies the
|
||||
GGUF metadata from a reference file, so it is not a general converter. Its value
|
||||
is that it is small, readable, dependency-free, and able to prove the file it
|
||||
writes is identical to the reference.
|
||||
|
||||
- `repop` (воспроизводимые ядра) — **не open source**, только wheel под «Gensyn Reproducibility License v1.0».
|
||||
- v3-хэш **не покрывает** RNG, курсор data-stream, spike state и ключи `meta.json`.
|
||||
- В self-serve audit-ките опубликованы **только init-units**; interval-units — «added per run once … published».
|
||||
```bash
|
||||
cd tools/hf2gguf
|
||||
go build -o hf2gguf .
|
||||
./hf2gguf convert -ref models/open-1b-sft-f16.gguf \
|
||||
-safetensors models/open-1b-sft/model.safetensors \
|
||||
-config models/open-1b-sft/config.json \
|
||||
-tokenizer-config models/open-1b-sft/tokenizer_config.json \
|
||||
-tokenizer models/open-1b-sft/tokenizer.json \
|
||||
-o models/open-1b-sft-f16-go.gguf
|
||||
./hf2gguf verify -ref models/open-1b-sft-f16.gguf -got models/open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
`verify` reports 39 of 39 metadata keys and 220 of 220 tensors identical. The two
|
||||
files share SHA-256
|
||||
`a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae`.
|
||||
See [tools/hf2gguf/README.md](tools/hf2gguf/README.md).
|
||||
|
||||
## Results
|
||||
|
||||
| Check | Result |
|
||||
| --- | --- |
|
||||
| Init-unit audit, x86-64 CPU, no NVIDIA | Match. The published state hash `16554a11...` is reproduced exactly. |
|
||||
| Training-interval audit | Not run. No interval unit is published, and a replay needs about 24 GB RAM and 60 GB disk. |
|
||||
| GGUF conversion (Go) | Byte-identical to the reference conversion, same SHA-256. |
|
||||
| Local inference, one Intel Arc B580 | 114 tok/s decode, 892 tok/s prefill, about 3.6 GiB VRAM. |
|
||||
|
||||
Reports: [audit](docs/audit-open1b-init.md), [local run](docs/open1b-local-inference.md),
|
||||
[benchmarks](docs/benchmarks.md), [inference stack](docs/inference-stack.md).
|
||||
|
||||
## How it works
|
||||
|
||||
Audit. Replay one published commitment and compare hashes.
|
||||
|
||||
```mermaid
|
||||
flowchart LR
|
||||
KIT["Gensyn audit kit"] --> SHA{"sha256<br/>against kit.json"}
|
||||
SHA --> WHL["repop and pretrain wheels"]
|
||||
WHL --> REPLAY["pretrain-audit-replay<br/>--from-init --device cpu"]
|
||||
REPLAY --> H1["regenerated init hash"]
|
||||
KIT --> H2["published commitment"]
|
||||
H1 --> CMP{"equal"}
|
||||
H2 --> CMP
|
||||
CMP -->|yes| OK["match"]
|
||||
CMP -->|no| BAD["mismatch"]
|
||||
```
|
||||
|
||||
Inference. Convert in Go, serve on one Arc. The engine is a patched llama.cpp.
|
||||
|
||||
```mermaid
|
||||
flowchart LR
|
||||
HF["HF checkpoint<br/>model.safetensors, fp32"] --> GO["tools/hf2gguf<br/>Go"]
|
||||
GO --> GGUF["GGUF, f16<br/>identical to reference"]
|
||||
GGUF --> LC["llama.cpp Vulkan<br/>upstream plus open1b patch"]
|
||||
LC --> GPU["Intel Arc B580"]
|
||||
GPU --> API["llama-server HTTP"]
|
||||
```
|
||||
|
||||
## Repository layout
|
||||
|
||||
```
|
||||
tools/hf2gguf/ # the Go converter: dump, convert, verify
|
||||
docs/
|
||||
audit-open1b-init.md
|
||||
open1b-local-inference.md
|
||||
benchmarks.md
|
||||
inference-stack.md
|
||||
llama-cpp-open1b.patch
|
||||
```
|
||||
|
||||
## The audit, and its limits
|
||||
|
||||
The init unit regenerates the published initial state hash exactly on a plain
|
||||
CPU. The installed wheels match the kit manifest, and the repop build commit
|
||||
matches the manifest.
|
||||
|
||||
It does not cover a training step. An init-only unit says nothing about the
|
||||
forward pass, the backward pass, the optimizer, or the data stream, so the
|
||||
per-step claim stays untested here. Three more reasons to be careful:
|
||||
|
||||
- repop ships as compiled wheels only, under a custom licence. The kernels that
|
||||
make training reproducible cannot be read or checked.
|
||||
- The v3 state hash omits the RNG, the data-stream cursor, spike state, and the
|
||||
meta.json descriptor keys.
|
||||
- No interval unit is published, so "replay any step" is not yet something an
|
||||
outsider can do without permission.
|
||||
|
||||
A match shows that the pinned artifacts reproduce the published commitment on
|
||||
our machine. It does not show how the original run was carried out.
|
||||
|
||||
## Running the model
|
||||
|
||||
Upstream llama.cpp has no open1b architecture, so the model needs a patched
|
||||
build. Details in the [inference stack](docs/inference-stack.md).
|
||||
|
||||
```bash
|
||||
llama-server -m models/open-1b-sft-f16-go.gguf \
|
||||
--device Vulkan2 -ngl 99 -c 32768 -fa off --jinja \
|
||||
--spec-type ngram-map-k,ngram-cache \
|
||||
-t 16 --parallel 1 --alias open-1b --host 127.0.0.1 --port 8085
|
||||
```
|
||||
|
||||
`-fa off` is required on these Arc/Vulkan builds, which keeps the KV cache in
|
||||
f16. The requested 32k context is capped to the model's 4096.
|
||||
|
||||
## Caveats
|
||||
|
||||
- Chat template. With the vendor tail `...assistant<|end_header|>` followed by a
|
||||
blank line, the released SFT checkpoint emits an end-of-turn token first and
|
||||
returns an empty reply. Our GGUF is identical to the reference, so this is a
|
||||
property of the released weights. Seed the assistant turn, set ignore_eos, or
|
||||
adjust the trailing newline.
|
||||
- Model quality. open-1b scores 25.4 on the OLMo2 suite, against 31.9 for
|
||||
OLMo2-1B. It is a test of verifiability, not a strong model.
|
||||
- Scope. We run and inspect released weights and replay one published
|
||||
commitment. We do not train or fine-tune anything.
|
||||
|
||||
## License
|
||||
|
||||
MIT, see [LICENSE](LICENSE). The harness is Apache-2.0. repop, the checkpoints,
|
||||
and the corpus are distributed by Gensyn under their own terms.
|
||||
|
||||
Built on Gensyn's release. Not affiliated with Gensyn.
|
||||
|
||||
@@ -0,0 +1,132 @@
|
||||
# Audit: open-1b init unit on CPU
|
||||
|
||||
- Date: 2026-09-28
|
||||
- Host: brainstation, Linux x86-64, kernel 7.3.0, no NVIDIA GPU
|
||||
- Harness: `gensyn-ai/open-transformers` at `d7b7b674`
|
||||
- Workdir: `audit/`
|
||||
- Verdict: match on the `1b_repop_v2` init unit. No training interval was replayed.
|
||||
|
||||
## Kit
|
||||
|
||||
The audit app publishes the mapping at `https://open1b.gensyn.ai/manifest.json`:
|
||||
|
||||
```
|
||||
run: 1b_repop_v2
|
||||
initStateHash 16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed
|
||||
audit: kit pt-f91110a0d0c8_rp-c9ca6e71e673
|
||||
```
|
||||
|
||||
All four published kits declare the same init commitment, so the choice of kit
|
||||
does not change the hash under test.
|
||||
|
||||
- pretrain commit: `f91110a0d0c84fa3bad808f365567d9c655d10b2`
|
||||
- repop commit: `c9ca6e71e673660afc6c87de2592fa6f62c87b15`
|
||||
- torch: `2.10.0`
|
||||
|
||||
## Toolchain
|
||||
|
||||
| Component | Version |
|
||||
| --- | --- |
|
||||
| Python | 3.11.16, via uv. System Python untouched. |
|
||||
| uv | 0.12.17 |
|
||||
| PyTorch | 2.10.0+cpu |
|
||||
| repop | 0.1.5, build commit `c9ca6e71e673`, matches kit.json |
|
||||
| pretrain | 0.1.0, kit wheel |
|
||||
| Go | 1.27, for all glue and checks |
|
||||
|
||||
The runbook targets Linux with an NVIDIA GPU and points at the CUDA 12.9 index.
|
||||
This host has no GPU. The README names CPU as the reference device, so the pinned
|
||||
torch version was installed from the CPU index. Init is device-independent by
|
||||
construction, so the result is unaffected.
|
||||
|
||||
## Commands
|
||||
|
||||
```bash
|
||||
git clone --depth 1 https://github.com/gensyn-ai/open-transformers
|
||||
go run ./tools/kitinspect kits/*/
|
||||
go run ./tools/kitfetch kits/pt-f91110a0d0c8_rp-c9ca6e71e673 kit-pt-f91110a0d0c8_rp-c9ca6e71e673
|
||||
|
||||
uv venv --python 3.11 .venv
|
||||
uv pip install --python .venv --index-url https://download.pytorch.org/whl/cpu "torch==2.10.0"
|
||||
uv pip install --python .venv \
|
||||
./kit-pt-f91110a0d0c8_rp-c9ca6e71e673/repop-0.1.5-cp311-cp311-linux_x86_64.whl \
|
||||
./kit-pt-f91110a0d0c8_rp-c9ca6e71e673/pretrain-0.1.0-cp311-cp311-linux_x86_64.whl
|
||||
|
||||
.venv/bin/pretrain-audit-replay --from-init --until-step 0 \
|
||||
--config-name 1b_repop_v2 --device cpu \
|
||||
--expect-hash 16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed
|
||||
```
|
||||
|
||||
## Checksums
|
||||
|
||||
All five kit files were hashed before install. The Go fetcher accepts a file only
|
||||
on a full match and deletes rejected bytes. Expected values come from kit.json.
|
||||
|
||||
| File | SHA-256 | Result |
|
||||
| --- | --- | --- |
|
||||
| `pretrain-0.1.0-cp311-cp311-linux_x86_64.whl` | `ecc49d1c05c0e2876a59d98d877795769d6e9620eb66e4b4c866b16f695fb174` | match |
|
||||
| `pretrain-0.1.0-cp311-cp311-macosx_14_0_arm64.whl` | `fbd23a54aa0bf87775e86493d67f759d1c1f4cc1dcd63ad991fba59dcb92491c` | match |
|
||||
| `repop-0.1.5-cp311-cp311-linux_x86_64.whl` | `15f171643871211b2a772ee83c94833c0be2eef0495790cedc33813c95147ff0` | match |
|
||||
| `repop-0.1.5-cp311-cp311-macosx_14_0_arm64.whl` | `d8658e0327c7278812ecb6dd455cd4cf8723a974a78788adba41d5f747289c69` | match |
|
||||
| `trajectory.json` | `9435515c37d8956d0c81d5bc78c0a383bb6bf27c57b5dbaf1f8be564df0b324a` | match |
|
||||
|
||||
Only the two linux_x86_64 wheels were installed.
|
||||
|
||||
## Result
|
||||
|
||||
```json
|
||||
{
|
||||
"step": 0,
|
||||
"state_hash": "16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed",
|
||||
"mode": "init",
|
||||
"device": "cpu",
|
||||
"expected": "16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed",
|
||||
"match": true
|
||||
}
|
||||
```
|
||||
|
||||
Log line: `from-init: regenerated init state_hash=16554a1119745f1b expected=16554a1119745f1b MATCH=True`.
|
||||
|
||||
Resources: 58.3 s wall, peak RSS 16.8 GB, no swap, exit 0.
|
||||
|
||||
## Limits
|
||||
|
||||
1. No training interval. An init-only unit says nothing about the forward pass,
|
||||
the backward pass, the optimizer, or the data stream. The per-step claim is
|
||||
not exercised.
|
||||
2. repop is closed source. Only compiled wheels ship, under the Gensyn
|
||||
Reproducibility Licence. The kernels that make training reproducible cannot be
|
||||
read or checked. The init unit does not even run the kernels changed by the
|
||||
recent repop repin.
|
||||
3. Hash coverage. The v3 hash covers weights, optimizer state, gradients, and the
|
||||
batch digest. It omits the RNG, the data-stream cursor, spike state, and the
|
||||
meta.json descriptor keys.
|
||||
4. Init is the easy case. init.py samples Philox on CPU and byte-copies, so it is
|
||||
device-independent by design. The hard cross-device claim lives in the
|
||||
training kernels, which this unit does not touch.
|
||||
5. Provenance of the published run is not established. We only show that the
|
||||
pinned artifacts reproduce the published commitment on this machine.
|
||||
|
||||
## Interval replay was not attempted
|
||||
|
||||
This is a decision, not a stall.
|
||||
|
||||
- Not defined by the kit. This kit's trajectory.json contains only three init
|
||||
units (`100m_smoke_repop`, `1b_repop_run3`, `1b_repop_v2`). No interval unit
|
||||
with a canonical target hash is published, so there is no commitment to check.
|
||||
- Memory. A step replay needs about 24 GB. This host had about 11 GB free, and
|
||||
the init unit already peaked at 16.8 GB.
|
||||
- Disk. One checkpoint `ckpt/step_000000100/` is 19.31 GB; the full `ckpt/` tree
|
||||
is 15.64 TB. With 39 GB free, a single checkpoint is tight.
|
||||
|
||||
Re-attempt on a host with 32 GB or more RAM and 60 GB or more disk, ideally with
|
||||
a CUDA GPU.
|
||||
|
||||
## Files
|
||||
|
||||
- `open-transformers/`: harness clone
|
||||
- `kits/`: manifests
|
||||
- `kit-pt-f91110a0d0c8_rp-c9ca6e71e673/`: verified wheels
|
||||
- `.venv/`: Python 3.11 audit environment
|
||||
- `tools/`: Go glue (`kitinspect`, `trajinspect`, `kitfetch`, `gslist`)
|
||||
- `init-replay.log`: full replay output
|
||||
@@ -0,0 +1,41 @@
|
||||
# Benchmarks
|
||||
|
||||
open-1b on our hardware, with the production model, gemma-4-E2B, as reference.
|
||||
Single stream, one GPU.
|
||||
|
||||
## Setup
|
||||
|
||||
- GPU: one Intel Arc B580 (BMG G21, 12 GB), Vulkan, llama.cpp build-vulkan (b10893).
|
||||
- CPU: AMD Ryzen 7 7700X, 29 GB RAM.
|
||||
- Flags: `-ngl 99 -fa off --jinja --spec-type ngram-map-k,ngram-cache -t 16 --parallel 1`.
|
||||
- `-fa off` is required on these Arc/Vulkan builds, so the KV cache stays in f16.
|
||||
|
||||
## open-1b, Go-built GGUF, f16
|
||||
|
||||
| Metric | Value |
|
||||
| --- | --- |
|
||||
| Decode | 112 to 117 tok/s |
|
||||
| Prefill | about 892 tok/s |
|
||||
| VRAM | about 3.6 GiB |
|
||||
| Context | 4096, the model limit |
|
||||
| Weights | f16, about 3.2 GB |
|
||||
|
||||
## Reference, one Arc B580
|
||||
|
||||
| Model | Weights | Context | Decode | Prefill |
|
||||
| --- | --- | --- | --- | --- |
|
||||
| open-1b-sft | f16, about 3.2 GB | 4096 | about 114 tok/s | about 892 tok/s |
|
||||
| gemma-4-E2B | Q4, about 1.5 GiB | 64k | about 214 tok/s | about 1659 tok/s |
|
||||
|
||||
The gemma figures come from our 2026-09-20 benchmark on the same card and build.
|
||||
|
||||
gemma is about twice as fast, about 2.4 times smaller, and has sixteen times the
|
||||
context. For classification, extraction, translation, or tool calls, gemma is the
|
||||
better choice. open-1b is interesting for its training audit, not for its speed.
|
||||
|
||||
## Notes
|
||||
|
||||
- Not a controlled comparison. The open-1b numbers are a short first run with
|
||||
different prompts; the gemma numbers come from a separate controlled benchmark.
|
||||
- No speculative-decoder-off measurement for open-1b.
|
||||
- Quality: open-1b scores 25.4 on the OLMo2 suite, against 31.9 for OLMo2-1B.
|
||||
@@ -0,0 +1,89 @@
|
||||
# Inference stack: how llama.cpp was built and launched
|
||||
|
||||
This records the engine behind the local run. Is the llama.cpp build stock? No.
|
||||
|
||||
## Provenance
|
||||
|
||||
| | |
|
||||
| --- | --- |
|
||||
| Upstream base | `ggerganov/llama.cpp` at `c32d1dabe`, 2026-09-10 |
|
||||
| Local changes | uncommitted patches adding the `open1b` architecture, 9 files, +299 lines |
|
||||
| Patch | [llama-cpp-open1b.patch](llama-cpp-open1b.patch) |
|
||||
| Build | `-DGGML_VULKAN=ON -DGGML_NATIVE=ON -DCMAKE_BUILD_TYPE=Release` |
|
||||
| Binary | `build-vulkan/bin/llama-server`, `0.4.0-dev`, build 10893 |
|
||||
|
||||
Upstream has no `open1b` architecture, so the patch is required. open-1b is
|
||||
Llama-3-derived, with four differences the loader and graph must know about:
|
||||
|
||||
- gain-free per-head RMSNorm on Q and K before RoPE,
|
||||
- RMSNorm on the token-embedding output,
|
||||
- hybrid sliding-window attention, 512 tokens, full causal on the last layer of
|
||||
each group of five and on the final layer,
|
||||
- untied embedding and LM head, with interleaved-pair RoPE.
|
||||
|
||||
## Patch inventory
|
||||
|
||||
| File | Change |
|
||||
| --- | --- |
|
||||
| `src/models/open1b.cpp` | new: `llama_model_open1b`, hparams, tensors, graph |
|
||||
| `src/models/models.h` | declare the model |
|
||||
| `src/llama-arch.h`, `.cpp` | add `LLM_ARCH_OPEN1B` |
|
||||
| `src/llama-model.cpp` | dispatch the arch, set the RoPE type |
|
||||
| `gguf-py/gguf/constants.py` | arch enum, name, tensor list |
|
||||
| `gguf-py/gguf/tensor_mapping.py` | HF to GGUF tensor names |
|
||||
| `conversion/__init__.py` | register the converter |
|
||||
| `conversion/open1b.py` | new: `Open1BModel` converter |
|
||||
|
||||
## Build
|
||||
|
||||
```bash
|
||||
git clone https://github.com/ggerganov/llama.cpp
|
||||
cd llama.cpp
|
||||
git checkout c32d1dabe
|
||||
git apply /path/to/llama-cpp-open1b.patch
|
||||
|
||||
cmake -B build-vulkan -DGGML_VULKAN=ON -DGGML_NATIVE=ON -DCMAKE_BUILD_TYPE=Release
|
||||
cmake --build build-vulkan --config Release -j
|
||||
```
|
||||
|
||||
## Launch
|
||||
|
||||
```bash
|
||||
setsid --fork ./build-vulkan/bin/llama-server \
|
||||
-m models/open-1b-sft-f16-go.gguf \
|
||||
--device Vulkan2 -ngl 99 -c 32768 -fa off --jinja \
|
||||
--spec-type ngram-map-k,ngram-cache \
|
||||
-t 16 --parallel 1 --alias open-1b \
|
||||
--host 127.0.0.1 --port 8085 >/tmp/open1b.log 2>&1 </dev/null &
|
||||
```
|
||||
|
||||
| Flag | Reason |
|
||||
| --- | --- |
|
||||
| `--device Vulkan2` | one Intel Arc B580. Vulkan1 to 3 are the three Arc cards; Vulkan0 is the AMD iGPU. |
|
||||
| `-ngl 99` | offload all layers |
|
||||
| `-fa off` | Flash-Attention crashes on these Arc/Vulkan builds, so the KV cache stays in f16 |
|
||||
| `-c 32768` | requested, capped to the model's 4096-token context |
|
||||
| `--spec-type ngram-map-k,ngram-cache` | about 2.4x decode on small dense models |
|
||||
| `--jinja` | use the model's chat template |
|
||||
|
||||
## Pipeline
|
||||
|
||||
```mermaid
|
||||
flowchart LR
|
||||
HF["HF checkpoint<br/>model.safetensors, fp32"] --> GO["tools/hf2gguf<br/>Go"]
|
||||
GO --> GGUF["open-1b-sft-f16-go.gguf<br/>f16"]
|
||||
GGUF --> LC["llama.cpp Vulkan<br/>upstream plus open1b patch"]
|
||||
LC --> GPU["Intel Arc B580"]
|
||||
GPU --> API["llama-server<br/>HTTP /completion"]
|
||||
```
|
||||
|
||||
## Notes
|
||||
|
||||
- The patch is ours and uncommitted. The exported patch file makes the build
|
||||
reproducible. Committing it, or proposing it upstream, would be better.
|
||||
- The reference GGUF is not an independent artifact. It came from llama.cpp's
|
||||
`convert_hf_to_gguf.py` with this same patch. The Go converter reproduces it
|
||||
byte for byte, which is a real reimplementation of the GGUF writer, but the
|
||||
comparison is against our own patched Python output, not a file published by
|
||||
Gensyn.
|
||||
- The patch was written for bring-up. It is not upstream-reviewed.
|
||||
@@ -1,26 +0,0 @@
|
||||
# Epic: Gensyn open-1b — верификация auditable training и локальный inference
|
||||
|
||||
**Цель.** Независимо проверить заявление Gensyn о *bitwise auditable training* (open-1b) на нашем железе и запустить модель локально; зафиксировать факты, ограничения и решения.
|
||||
|
||||
## Контекст
|
||||
|
||||
- Анонс 2026-09-15: https://www.gensyn.ai/news/introducing-open-1b-auditable-training (+ PRNewswire 302878850)
|
||||
- Harness: https://github.com/gensyn-ai/open-transformers (Apache-2.0)
|
||||
- Audit CLI: https://github.com/gensyn-ai/gensyn-audit
|
||||
- Audit app: https://open1b.gensyn.ai/ (manifest: https://open1b.gensyn.ai/manifest.json)
|
||||
- Модель: HF `Gensyn/open-1b-base`, `-midtrained-93B`, `-sft`
|
||||
- Модель: 1.61B total / 1.08B non-emb, 24 слоя, 400B токенов, 80 957 шагов, 48×H100
|
||||
- 2dph info-leaf (PO, 2026-09-28): `6703767319c6e2f9fa6d63465934d72e`
|
||||
|
||||
## Дети эпика
|
||||
|
||||
- `#AUDIT-INIT` — Аудит init-unit open-1b (CPU, Linux x86-64)
|
||||
- `#AUDIT-INTERVAL` — Аудит тренировочного интервала open-1b (заблокировано)
|
||||
- `#INFERENCE` — Локальный запуск open-1b на Arc B580 (llama.cpp Vulkan)
|
||||
- `#REPORT` — Сводный отчёт и запись фактов в 2dph
|
||||
|
||||
## Критерий закрытия эпика
|
||||
|
||||
Все дочерние issues закрыты с доказательствами (тест/лог/хэш). Заблокированный
|
||||
интервальный аудит может остаться открытым, если блокер явно задокументирован
|
||||
(нет опубликованного interval-unit + ресурсы хоста).
|
||||
@@ -1,25 +0,0 @@
|
||||
Epic: #EPIC
|
||||
|
||||
## Цель
|
||||
|
||||
Независимо воспроизвести опубликованный **init-хэш** open-1b официальным harness'ом
|
||||
на CPU (Linux x86-64, без NVIDIA).
|
||||
|
||||
## Критерии приёмки
|
||||
|
||||
- [x] kit `pt-f91110a0d0c8_rp-c9ca6e71e673` скачан; sha256 **всех** файлов сверены с `kit.json`
|
||||
- [x] `repop.build_info().commit == kit.json.repop_commit` (`c9ca6e71e673`)
|
||||
- [x] `pretrain-audit-replay --from-init --until-step 0 --config-name 1b_repop_v2 --device cpu` → `match=true`
|
||||
- [x] отчёт с raw-выводом и таблицей sha256
|
||||
|
||||
## Результат (2026-09-28)
|
||||
|
||||
✅ **MATCH**. `state_hash = 16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed`,
|
||||
wall 58.3 s, peak RSS 16.8 GB, exit 0.
|
||||
|
||||
Отчёт: `audit/REPORT.md`.
|
||||
|
||||
## Ограничение
|
||||
|
||||
Init-unit по README **не** проверяет тренировочный интервал — это отдельная задача
|
||||
`#AUDIT-INTERVAL`.
|
||||
@@ -1,29 +0,0 @@
|
||||
Epic: #EPIC
|
||||
|
||||
## Цель
|
||||
|
||||
Воспроизвести **тренировочный интервал** (replay шага против опубликованного hash) —
|
||||
именно это доказывает заявление «bitwise auditable training», в отличие от init-unit.
|
||||
|
||||
## Критерии приёмки
|
||||
|
||||
- [ ] получен interval-unit с canonical target hash (published commitment на шаг)
|
||||
- [ ] скачан чекпоинт + шарды, потреблённые интервалом
|
||||
- [ ] `pretrain-audit-replay --checkpoint … --until-step N --gcs-root … --expect-hash …` → `MATCH`
|
||||
- [ ] отчёт с raw-выводом
|
||||
|
||||
## Блокер (2026-09-28)
|
||||
|
||||
- ⛔ В kit `pt-f91110a0d0c8_rp-c9ca6e71e673` `trajectory.json` содержит **только init-units**
|
||||
(`100m_smoke_repop`, `1b_repop_run3`, `1b_repop_v2`). Interval-units «added per run once its
|
||||
checkpoints and state_hash files are published» — **не опубликованы**. Self-serve кит
|
||||
не определяет commit на шаг.
|
||||
- ⛔ Ресурсы хоста: нужно ~24 ГБ RAM (есть ~11 ГБ) и ≥60 ГБ диска (есть 39 ГБ);
|
||||
один чекпоинт `ckpt/step_000000100/` = 19.31 ГБ.
|
||||
- Решение по разблокировке (владелец — PO/пользователь): запросить у audit-app interval-unit,
|
||||
либо выполнять на хосте с ≥32 ГБ RAM / ≥60 ГБ диска (предпочтительно NVIDIA `--device cuda`).
|
||||
|
||||
## Примечание
|
||||
|
||||
Per-step log доступен на `gs://gensyn-open-1b/logs/state_hashes.jsonl`; harness не умеет
|
||||
автоподстановку, а audit-app гейтит сабмиты — это тоже часть блокера.
|
||||
@@ -1,23 +0,0 @@
|
||||
Epic: #EPIC
|
||||
|
||||
## Цель
|
||||
|
||||
Поднять open-1b локально и доказать работоспособность на нашем железе
|
||||
(Intel Arc B580, Vulkan; без NVIDIA/CUDA).
|
||||
|
||||
## Критерии приёмки
|
||||
|
||||
- [ ] llama.cpp собран с Vulkan; бэкенд активен на Arc B580
|
||||
- [ ] веса HF (`Gensyn/open-1b-sft`, fallback `-base`) скачаны, provenance = точная ревизия
|
||||
- [ ] конвертация в GGUF; собран/выбран квант
|
||||
- [ ] `llama-cli`/`llama-server` даёт связный ответ; замер tok/s и VRAM
|
||||
- [ ] отчёт с точными командами и caveat'ами
|
||||
|
||||
## Прочее
|
||||
|
||||
- Сервисы — только docker compose (не systemd).
|
||||
- Обвязка — Go; Python только через `uv` (канонический `convert_hf_to_gguf.py`).
|
||||
|
||||
## Статус
|
||||
|
||||
🔄 выполняется фоновым SE-субагентом (2026-09-28).
|
||||
@@ -1,16 +0,0 @@
|
||||
Epic: #EPIC
|
||||
|
||||
## Цель
|
||||
|
||||
Свести результаты в отчёт и записать проверенные факты в 2dph (brain), пометив
|
||||
что подтверждено, а что остаётся ограничением.
|
||||
|
||||
## Критерии приёмки
|
||||
|
||||
- [ ] сводный отчёт (что доказано / что нет) в репо
|
||||
- [ ] info-leaf в 2dph с итогом (source: `po/gensyn`)
|
||||
- [ ] явно зафиксированы ограничения: `repop` closed-source, v3-hash не покрывает RNG/cursor/spike/meta, interval-unit не опубликован
|
||||
|
||||
## Статус
|
||||
|
||||
info-leaf записан: `6703767319c6e2f9fa6d63465934d72e`. Отчёт — по завершении #INFERENCE и #AUDIT-INTERVAL.
|
||||
@@ -0,0 +1,437 @@
|
||||
diff --git a/conversion/__init__.py b/conversion/__init__.py
|
||||
index 4d58bcd10..b869b4dc8 100644
|
||||
--- a/conversion/__init__.py
|
||||
+++ b/conversion/__init__.py
|
||||
@@ -201,6 +201,7 @@ TEXT_MODEL_MAP: dict[str, str] = {
|
||||
"OlmoeForCausalLM": "olmo",
|
||||
"MuseGlimmerAssistantModel": "muse_glimmer",
|
||||
"MuseGlimmerForConditionalGeneration": "muse_glimmer",
|
||||
+ "Open1BForCausalLM": "open1b",
|
||||
"OpenELMForCausalLM": "openelm",
|
||||
"OrionForCausalLM": "orion",
|
||||
"PLMForCausalLM": "plm",
|
||||
diff --git a/conversion/open1b.py b/conversion/open1b.py
|
||||
new file mode 100644
|
||||
index 000000000..7ace1adc7
|
||||
--- /dev/null
|
||||
+++ b/conversion/open1b.py
|
||||
@@ -0,0 +1,52 @@
|
||||
+from __future__ import annotations
|
||||
+
|
||||
+from typing import Iterable, TYPE_CHECKING
|
||||
+
|
||||
+if TYPE_CHECKING:
|
||||
+ from torch import Tensor
|
||||
+
|
||||
+from .base import ModelBase, TextModel, gguf, logger
|
||||
+
|
||||
+
|
||||
+@ModelBase.register("Open1BForCausalLM")
|
||||
+@ModelBase.example("Gensyn/open-1b-sft")
|
||||
+class Open1BModel(TextModel):
|
||||
+ model_arch = gguf.MODEL_ARCH.OPEN1B
|
||||
+
|
||||
+ def get_vocab_base_pre(self, tokenizer) -> str:
|
||||
+ # open-1b's tokenizer.json declares a `<Split>` step whose pattern is
|
||||
+ # serialized with the "String" variant (a literal `\d`, not a regex),
|
||||
+ # so it is a no-op and the effective pre-tokenizer is plain byte-level
|
||||
+ # BPE with the GPT-2 regex. That is exactly llama.cpp's "gpt-2" pre.
|
||||
+ return "gpt-2"
|
||||
+
|
||||
+ def set_gguf_parameters(self):
|
||||
+ super().set_gguf_parameters()
|
||||
+
|
||||
+ sliding_window = self.hparams["sliding_window"]
|
||||
+ self.gguf_writer.add_sliding_window(sliding_window)
|
||||
+ logger.info(f"gguf: sliding window = {sliding_window}")
|
||||
+
|
||||
+ # open-1b is full-causal on the last layer of every `swa_full_every`
|
||||
+ # group and on the final layer; the runtime applies that exact pattern.
|
||||
+ swa_full_every = self.hparams["swa_full_every"]
|
||||
+ self.gguf_writer.add_sliding_window_pattern(swa_full_every)
|
||||
+ logger.info(f"gguf: sliding window pattern period = {swa_full_every}")
|
||||
+
|
||||
+ def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iterable[tuple[str, Tensor]]:
|
||||
+ # LSQ per-channel weight scales are not materialised: the released
|
||||
+ # master weights are used directly, equivalent to quantized_forward=false.
|
||||
+ if name.endswith(".weight_scale"):
|
||||
+ return
|
||||
+
|
||||
+ # the checkpoint stores a fused gate+up projection; split it for ggml
|
||||
+ if name.endswith("ffn.w_gate_up.weight"):
|
||||
+ assert bid is not None
|
||||
+ n_ff = data_torch.shape[0] // 2
|
||||
+ gate = data_torch[:n_ff].contiguous()
|
||||
+ up = data_torch[n_ff:].contiguous()
|
||||
+ yield (self.format_tensor_name(gguf.MODEL_TENSOR.FFN_GATE, bid), gate)
|
||||
+ yield (self.format_tensor_name(gguf.MODEL_TENSOR.FFN_UP, bid), up)
|
||||
+ return
|
||||
+
|
||||
+ yield from super().modify_tensors(data_torch, name, bid)
|
||||
diff --git a/gguf-py/gguf/constants.py b/gguf-py/gguf/constants.py
|
||||
index d3a639f37..146d0cebe 100644
|
||||
--- a/gguf-py/gguf/constants.py
|
||||
+++ b/gguf-py/gguf/constants.py
|
||||
@@ -630,6 +630,7 @@ class MODEL_ARCH(IntEnum):
|
||||
NANBEIGE = auto()
|
||||
QWEN3TTS = auto()
|
||||
POCKETTTS = auto()
|
||||
+ OPEN1B = auto()
|
||||
|
||||
|
||||
class VISION_PROJECTOR_TYPE(IntEnum):
|
||||
@@ -1385,6 +1386,7 @@ MODEL_ARCH_NAMES: dict[MODEL_ARCH, str] = {
|
||||
MODEL_ARCH.NANBEIGE: "nanbeige",
|
||||
MODEL_ARCH.QWEN3TTS: "qwen3tts",
|
||||
MODEL_ARCH.POCKETTTS: "pockettts",
|
||||
+ MODEL_ARCH.OPEN1B: "open1b",
|
||||
}
|
||||
|
||||
VISION_PROJECTOR_TYPE_NAMES: dict[VISION_PROJECTOR_TYPE, str] = {
|
||||
@@ -5528,6 +5530,21 @@ MODEL_TENSORS: dict[MODEL_ARCH, list[MODEL_TENSOR]] = {
|
||||
MODEL_TENSOR.FFN_DOWN,
|
||||
MODEL_TENSOR.FFN_UP,
|
||||
],
|
||||
+ MODEL_ARCH.OPEN1B: [
|
||||
+ MODEL_TENSOR.TOKEN_EMBD,
|
||||
+ MODEL_TENSOR.TOKEN_EMBD_NORM,
|
||||
+ MODEL_TENSOR.OUTPUT_NORM,
|
||||
+ MODEL_TENSOR.OUTPUT,
|
||||
+ MODEL_TENSOR.ATTN_NORM,
|
||||
+ MODEL_TENSOR.ATTN_Q,
|
||||
+ MODEL_TENSOR.ATTN_K,
|
||||
+ MODEL_TENSOR.ATTN_V,
|
||||
+ MODEL_TENSOR.ATTN_OUT,
|
||||
+ MODEL_TENSOR.FFN_NORM,
|
||||
+ MODEL_TENSOR.FFN_GATE,
|
||||
+ MODEL_TENSOR.FFN_UP,
|
||||
+ MODEL_TENSOR.FFN_DOWN,
|
||||
+ ],
|
||||
}
|
||||
|
||||
# tensors that will not be serialized
|
||||
diff --git a/gguf-py/gguf/tensor_mapping.py b/gguf-py/gguf/tensor_mapping.py
|
||||
index d2dfeece5..ac5ba7c75 100644
|
||||
--- a/gguf-py/gguf/tensor_mapping.py
|
||||
+++ b/gguf-py/gguf/tensor_mapping.py
|
||||
@@ -35,6 +35,7 @@ class TensorNameMap:
|
||||
"model.transformer.wte", # llada
|
||||
"embed_tokens", # qwen3-embedding
|
||||
"model.embed", # talkie
|
||||
+ "embedding.tok_embeddings", # open1b
|
||||
),
|
||||
|
||||
# Masked embeddings
|
||||
@@ -63,6 +64,7 @@ class TensorNameMap:
|
||||
"model.layers.0.pre_norm", # rwkv7
|
||||
"backbone.norm", # wavtokenizer
|
||||
"model.embedding_norm", # lfm2
|
||||
+ "emb_norm", # open1b
|
||||
),
|
||||
|
||||
# Position embeddings
|
||||
@@ -86,6 +88,7 @@ class TensorNameMap:
|
||||
"model.lm_head", # dflash
|
||||
"model.transformer.ff_out", # llada
|
||||
"head.decoder", # modern-bert
|
||||
+ "embedding.output", # open1b
|
||||
),
|
||||
MODEL_TENSOR.DENSE_2_OUT: (
|
||||
"dense_2_out", # embeddinggemma
|
||||
@@ -116,6 +119,7 @@ class TensorNameMap:
|
||||
"model.transformer.ln_f", # llada
|
||||
"final_norm", # modern-bert
|
||||
"model.norm", # cogvlm
|
||||
+ "norm_out", # open1b
|
||||
),
|
||||
|
||||
# Rope frequencies
|
||||
@@ -2761,6 +2765,29 @@ class TensorNameMap:
|
||||
|
||||
# architecture-specific block mappings
|
||||
arch_block_mappings_cfg: dict[MODEL_ARCH, dict[MODEL_TENSOR, tuple[str, ...]]] = {
|
||||
+ MODEL_ARCH.OPEN1B: {
|
||||
+ MODEL_TENSOR.ATTN_NORM: (
|
||||
+ "blocks.{bid}.norm1",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.FFN_NORM: (
|
||||
+ "blocks.{bid}.norm2",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.ATTN_Q: (
|
||||
+ "blocks.{bid}.attn.wq",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.ATTN_K: (
|
||||
+ "blocks.{bid}.attn.wk",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.ATTN_V: (
|
||||
+ "blocks.{bid}.attn.wv",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.ATTN_OUT: (
|
||||
+ "blocks.{bid}.attn.wo",
|
||||
+ ),
|
||||
+ MODEL_TENSOR.FFN_DOWN: (
|
||||
+ "blocks.{bid}.ffn.w_down",
|
||||
+ ),
|
||||
+ },
|
||||
MODEL_ARCH.ARCTIC: {
|
||||
MODEL_TENSOR.FFN_NORM: (
|
||||
"model.layers.{bid}.residual_layernorm",
|
||||
diff --git a/src/llama-arch.cpp b/src/llama-arch.cpp
|
||||
index b5efb7206..9951cf5ce 100644
|
||||
--- a/src/llama-arch.cpp
|
||||
+++ b/src/llama-arch.cpp
|
||||
@@ -156,6 +156,7 @@ static const std::map<llm_arch, const char *> LLM_ARCH_NAMES = {
|
||||
{ LLM_ARCH_NANBEIGE, "nanbeige" },
|
||||
{ LLM_ARCH_QWEN3TTS, "qwen3tts" },
|
||||
{ LLM_ARCH_POCKETTTS, "pockettts" },
|
||||
+ { LLM_ARCH_OPEN1B, "open1b" },
|
||||
{ LLM_ARCH_UNKNOWN, "(unknown)" },
|
||||
};
|
||||
|
||||
diff --git a/src/llama-arch.h b/src/llama-arch.h
|
||||
index f1d173a57..02a0bee15 100644
|
||||
--- a/src/llama-arch.h
|
||||
+++ b/src/llama-arch.h
|
||||
@@ -161,6 +161,7 @@ enum llm_arch {
|
||||
LLM_ARCH_QWEN3TTS,
|
||||
LLM_ARCH_POCKETTTS,
|
||||
LLM_ARCH_MINIMAX_01,
|
||||
+ LLM_ARCH_OPEN1B,
|
||||
LLM_ARCH_UNKNOWN,
|
||||
};
|
||||
|
||||
diff --git a/src/llama-model.cpp b/src/llama-model.cpp
|
||||
index d10b60afd..b12c43d46 100644
|
||||
--- a/src/llama-model.cpp
|
||||
+++ b/src/llama-model.cpp
|
||||
@@ -108,6 +108,8 @@ static llama_model * llama_model_mapping(llm_arch arch, const llama_model_params
|
||||
return new llama_model_qwen2vl(params);
|
||||
case LLM_ARCH_QWEN2MOE:
|
||||
return new llama_model_qwen2moe(params);
|
||||
+ case LLM_ARCH_OPEN1B:
|
||||
+ return new llama_model_open1b(params);
|
||||
case LLM_ARCH_QWEN3:
|
||||
return new llama_model_qwen3(params);
|
||||
case LLM_ARCH_QWEN3MOE:
|
||||
@@ -2943,6 +2945,8 @@ llama_rope_type llama_model_rope_type(const llama_model * model) {
|
||||
case LLM_ARCH_DOTS3NOTE:
|
||||
case LLM_ARCH_NANBEIGE:
|
||||
case LLM_ARCH_POCKETTTS:
|
||||
+ // open-1b pairs consecutive head values (interleaved-pair RoPE)
|
||||
+ case LLM_ARCH_OPEN1B:
|
||||
// HY_V4 rotates consecutive pairs, matching the reference implementation
|
||||
case LLM_ARCH_HY_V4:
|
||||
return LLAMA_ROPE_TYPE_NORM;
|
||||
diff --git a/src/models/models.h b/src/models/models.h
|
||||
index 87195fddd..d2e30faab 100644
|
||||
--- a/src/models/models.h
|
||||
+++ b/src/models/models.h
|
||||
@@ -583,6 +583,20 @@ struct llama_model_qwen3 : public llama_model_base {
|
||||
};
|
||||
|
||||
|
||||
+struct llama_model_open1b : public llama_model_base {
|
||||
+ llama_model_open1b(const struct llama_model_params & params) : llama_model_base(params) {}
|
||||
+ void load_arch_hparams(llama_model_loader & ml) override;
|
||||
+ void load_arch_tensors(llama_model_loader & ml) override;
|
||||
+
|
||||
+ template <bool iswa>
|
||||
+ struct graph : public llm_graph_context {
|
||||
+ graph(const llama_model & model, const llm_graph_params & params);
|
||||
+ };
|
||||
+
|
||||
+ std::unique_ptr<llm_graph_context> build_arch_graph(const llm_graph_params & params) const override;
|
||||
+};
|
||||
+
|
||||
+
|
||||
struct llama_model_qwen3moe : public llama_model_base {
|
||||
llama_model_qwen3moe(const struct llama_model_params & params) : llama_model_base(params) {}
|
||||
void load_arch_hparams(llama_model_loader & ml) override;
|
||||
diff --git a/src/models/open1b.cpp b/src/models/open1b.cpp
|
||||
new file mode 100644
|
||||
index 000000000..9d8489ffd
|
||||
--- /dev/null
|
||||
+++ b/src/models/open1b.cpp
|
||||
@@ -0,0 +1,182 @@
|
||||
+#include "models.h"
|
||||
+
|
||||
+// Gensyn open-1b: a 1.6B decoder-only LM, Llama-3-derived with these deltas:
|
||||
+// - gain-free per-head RMSNorm on Q and K before RoPE
|
||||
+// - RMSNorm on the token-embedding output
|
||||
+// - hybrid sliding-window attention (last layer of each group + final layer full)
|
||||
+// - untied input embedding and LM head
|
||||
+// - interleaved-pair (GGML_ROPE_TYPE_NORM) RoPE
|
||||
+// All attention/FFN linears were trained with int8 W8A8 LSQ QAT; the released
|
||||
+// master weights are used directly here (equivalent to quantized_forward=false).
|
||||
+
|
||||
+void llama_model_open1b::load_arch_hparams(llama_model_loader & ml) {
|
||||
+ ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);
|
||||
+
|
||||
+ // hybrid sliding-window attention: the last layer of each group of
|
||||
+ // `sliding_window_pattern` layers is full-causal, the rest slide; the
|
||||
+ // final layer is always full-causal.
|
||||
+ const bool found_swa = ml.get_key(LLM_KV_ATTENTION_SLIDING_WINDOW, hparams.n_swa, false);
|
||||
+ if (found_swa && hparams.n_swa > 0) {
|
||||
+ hparams.swa_type = LLAMA_SWA_TYPE_STANDARD;
|
||||
+
|
||||
+ uint32_t swa_period = 5;
|
||||
+ ml.get_key_or_arr(LLM_KV_ATTENTION_SLIDING_WINDOW_PATTERN, swa_period, false);
|
||||
+ hparams.set_swa_pattern(swa_period);
|
||||
+ // open-1b forces the final layer to full causal attention
|
||||
+ hparams.is_swa_impl[hparams.n_layer() - 1] = 0;
|
||||
+ } else {
|
||||
+ hparams.swa_type = LLAMA_SWA_TYPE_NONE;
|
||||
+ }
|
||||
+
|
||||
+ type = LLM_TYPE_1B;
|
||||
+}
|
||||
+
|
||||
+void llama_model_open1b::load_arch_tensors(llama_model_loader &) {
|
||||
+ LLAMA_LOAD_LOCALS;
|
||||
+
|
||||
+ tok_embd = create_tensor(tn(LLM_TENSOR_TOKEN_EMBD, "weight"), {n_embd, n_vocab}, 0);
|
||||
+ tok_norm = create_tensor(tn(LLM_TENSOR_TOKEN_EMBD_NORM, "weight", 0), {n_embd}, 0);
|
||||
+
|
||||
+ // output
|
||||
+ output_norm = create_tensor(tn(LLM_TENSOR_OUTPUT_NORM, "weight"), {n_embd}, 0);
|
||||
+ output = create_tensor(tn(LLM_TENSOR_OUTPUT, "weight"), {n_embd, n_vocab}, TENSOR_NOT_REQUIRED);
|
||||
+ // if output is NULL, init from the input tok embed
|
||||
+ if (output == NULL) {
|
||||
+ output = create_tensor(tn(LLM_TENSOR_TOKEN_EMBD, "weight"), {n_embd, n_vocab}, TENSOR_DUPLICATED);
|
||||
+ }
|
||||
+
|
||||
+ for (int i = 0; i < n_layer; ++i) {
|
||||
+ auto & layer = layers[i];
|
||||
+
|
||||
+ layer.attn_norm = create_tensor(tn(LLM_TENSOR_ATTN_NORM, "weight", i), {n_embd}, 0);
|
||||
+
|
||||
+ create_tensor_qkv(layer, i, n_embd, n_embd_head_k * n_head, n_embd_gqa, n_embd_gqa, 0);
|
||||
+ layer.wo = create_tensor(tn(LLM_TENSOR_ATTN_OUT, "weight", i), {n_embd_head_k * n_head, n_embd}, 0);
|
||||
+
|
||||
+ layer.ffn_norm = create_tensor(tn(LLM_TENSOR_FFN_NORM, "weight", i), {n_embd}, 0);
|
||||
+ layer.ffn_gate = create_tensor(tn(LLM_TENSOR_FFN_GATE, "weight", i), {n_embd, n_ff}, 0);
|
||||
+ layer.ffn_up = create_tensor(tn(LLM_TENSOR_FFN_UP, "weight", i), {n_embd, n_ff}, 0);
|
||||
+ layer.ffn_down = create_tensor(tn(LLM_TENSOR_FFN_DOWN, "weight", i), {n_ff, n_embd}, 0);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+std::unique_ptr<llm_graph_context> llama_model_open1b::build_arch_graph(const llm_graph_params & params) const {
|
||||
+ if (hparams.swa_type != LLAMA_SWA_TYPE_NONE) {
|
||||
+ return std::make_unique<graph<true>>(*this, params);
|
||||
+ }
|
||||
+ return std::make_unique<graph<false>>(*this, params);
|
||||
+}
|
||||
+
|
||||
+template <bool iswa>
|
||||
+llama_model_open1b::graph<iswa>::graph(const llama_model & model, const llm_graph_params & params) : llm_graph_context(params) {
|
||||
+ const int64_t n_embd_head = hparams.n_embd_head_k();
|
||||
+
|
||||
+ GGML_ASSERT(n_embd_head == hparams.n_embd_head_v());
|
||||
+ GGML_ASSERT(n_embd_head == n_rot);
|
||||
+
|
||||
+ ggml_tensor * cur;
|
||||
+ ggml_tensor * inpL;
|
||||
+
|
||||
+ inpL = build_inp_embd(model.tok_embd);
|
||||
+ inpL = build_norm(inpL, model.tok_norm, NULL, LLM_NORM_RMS, -1);
|
||||
+ cb(inpL, "inp_norm", -1);
|
||||
+
|
||||
+ // inp_pos - contains the positions
|
||||
+ ggml_tensor * inp_pos = build_inp_pos();
|
||||
+
|
||||
+ using inp_attn_type = std::conditional_t<iswa, llm_graph_input_attn_kv_iswa, llm_graph_input_attn_kv>;
|
||||
+ inp_attn_type * inp_attn = nullptr;
|
||||
+ if constexpr (iswa) {
|
||||
+ inp_attn = build_attn_inp_kv_iswa();
|
||||
+ } else {
|
||||
+ inp_attn = build_attn_inp_kv();
|
||||
+ }
|
||||
+
|
||||
+ ggml_tensor * inp_out_ids = build_inp_out_ids();
|
||||
+
|
||||
+ for (int il = 0; il < n_layer; ++il) {
|
||||
+ float freq_base_l = freq_base;
|
||||
+ float freq_scale_l = freq_scale;
|
||||
+
|
||||
+ if constexpr (iswa) {
|
||||
+ freq_base_l = model.get_rope_freq_base (cparams, il);
|
||||
+ freq_scale_l = model.get_rope_freq_scale(cparams, il);
|
||||
+ }
|
||||
+
|
||||
+ res->t_layer_inp[il] = inpL;
|
||||
+
|
||||
+ ggml_tensor * inpSA = inpL;
|
||||
+
|
||||
+ // norm
|
||||
+ cur = build_norm(inpL, model.layers[il].attn_norm, NULL, LLM_NORM_RMS, il);
|
||||
+ cb(cur, "attn_norm", il);
|
||||
+
|
||||
+ // self-attention
|
||||
+ {
|
||||
+ auto [Qcur, Kcur, Vcur] = build_qkv(model.layers[il], cur,
|
||||
+ n_embd_head, n_head, n_head_kv, il);
|
||||
+
|
||||
+ // gain-free per-head RMSNorm on Q and K before RoPE
|
||||
+ Qcur = build_norm(Qcur, NULL, NULL, LLM_NORM_RMS, il);
|
||||
+ Qcur = ggml_rope_ext(
|
||||
+ ctx0, Qcur, inp_pos, nullptr,
|
||||
+ n_rot, rope_type, n_ctx_orig, freq_base_l, freq_scale_l,
|
||||
+ ext_factor, attn_factor, beta_fast, beta_slow);
|
||||
+ cb(Qcur, "Qcur", il);
|
||||
+
|
||||
+ Kcur = build_norm(Kcur, NULL, NULL, LLM_NORM_RMS, il);
|
||||
+ Kcur = ggml_rope_ext(
|
||||
+ ctx0, Kcur, inp_pos, nullptr,
|
||||
+ n_rot, rope_type, n_ctx_orig, freq_base_l, freq_scale_l,
|
||||
+ ext_factor, attn_factor, beta_fast, beta_slow);
|
||||
+ cb(Kcur, "Kcur", il);
|
||||
+ cb(Vcur, "Vcur", il);
|
||||
+
|
||||
+ // default scale 1/sqrt(head_dim), as in the reference SDPA
|
||||
+ cur = build_attn(inp_attn,
|
||||
+ model.layers[il].wo, NULL, model.layers[il].wo_s,
|
||||
+ Qcur, Kcur, Vcur, nullptr, nullptr, nullptr, 1.0f/sqrtf(float(n_embd_head)), il);
|
||||
+ }
|
||||
+ if (il == n_layer - 1 && inp_out_ids) {
|
||||
+ cur = ggml_get_rows(ctx0, cur, inp_out_ids);
|
||||
+ inpSA = ggml_get_rows(ctx0, inpSA, inp_out_ids);
|
||||
+ }
|
||||
+ ggml_tensor * ffn_inp = ggml_add(ctx0, cur, inpSA);
|
||||
+ cb(ffn_inp, "ffn_inp", il);
|
||||
+
|
||||
+ // feed-forward network
|
||||
+ cur = build_norm(ffn_inp, model.layers[il].ffn_norm, NULL, LLM_NORM_RMS, il);
|
||||
+ cb(cur, "ffn_norm", il);
|
||||
+
|
||||
+ cur = build_ffn(cur,
|
||||
+ model.layers[il].ffn_up, NULL, NULL,
|
||||
+ model.layers[il].ffn_gate, NULL, NULL,
|
||||
+ model.layers[il].ffn_down, NULL, NULL,
|
||||
+ NULL,
|
||||
+ LLM_FFN_SILU, LLM_FFN_PAR, il);
|
||||
+ cb(cur, "ffn_out", il);
|
||||
+
|
||||
+ cur = ggml_add(ctx0, cur, ffn_inp);
|
||||
+
|
||||
+ cur = build_cvec(cur, il);
|
||||
+ cb(cur, "l_out", il);
|
||||
+
|
||||
+ // input for next layer
|
||||
+ inpL = cur;
|
||||
+ }
|
||||
+ cur = inpL;
|
||||
+
|
||||
+ cur = build_norm(cur, model.output_norm, NULL, LLM_NORM_RMS, -1);
|
||||
+ cb(cur, "result_norm", -1);
|
||||
+ res->t_embd = cur;
|
||||
+
|
||||
+ // lm_head
|
||||
+ cur = build_lora_mm(model.output, cur, model.output_s);
|
||||
+ cb(cur, "result_output", -1);
|
||||
+ res->t_logits = cur;
|
||||
+
|
||||
+ ggml_build_forward_expand(gf, cur);
|
||||
+}
|
||||
+
|
||||
+template struct llama_model_open1b::graph<false>;
|
||||
+template struct llama_model_open1b::graph<true>;
|
||||
@@ -0,0 +1,177 @@
|
||||
# Local run: open-1b on one Arc B580
|
||||
|
||||
- Workdir: `inference/`
|
||||
- Engine: the shared llama.cpp Vulkan build, with the open1b patch
|
||||
- Language: Go 1.27
|
||||
|
||||
## Summary
|
||||
|
||||
- A Go tool, `hf2gguf`, with three commands: `dump`, `convert`, `verify`.
|
||||
- Validation: 39 of 39 metadata keys and 220 of 220 tensors are byte-identical.
|
||||
The two files share SHA-256 `a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae`.
|
||||
- Served on one Arc (Vulkan2, PCI `07:00.0`): about 114 tok/s decode, about 892
|
||||
tok/s prefill, about 3.6 GiB VRAM.
|
||||
|
||||
## Inputs
|
||||
|
||||
| Item | Path | Notes |
|
||||
| --- | --- | --- |
|
||||
| HF checkpoint | `models/open-1b-sft/model.safetensors` | 6.43 GB, F32 |
|
||||
| Reference GGUF | `models/open-1b-sft-f16.gguf` | 3.22 GB, f16, read-only |
|
||||
| HF config | `models/open-1b-sft/config.json` | see below |
|
||||
| Engine | `build-vulkan/bin/llama-server` | shared prod tree, not modified |
|
||||
|
||||
The config: `model_type=open1b`, 24 layers, hidden 2048, heads 16 and key/value
|
||||
heads 4, head_dim 128, feed-forward 5632, vocab 128256, rope_theta 500000,
|
||||
rms_eps 1e-5, hybrid sliding window 512 every 5 layers, gain-free qk_norm,
|
||||
embedding_norm, untied embeddings.
|
||||
|
||||
Devices as the engine lists them:
|
||||
|
||||
```
|
||||
Vulkan0: AMD Ryzen 7 7700X (RADV RAPHAEL_MENDOCINO), 15835 MiB
|
||||
Vulkan1: Intel Arc B580 (BMG G21), 12216 MiB
|
||||
Vulkan2: Intel Arc B580 (BMG G21), 12216 MiB
|
||||
Vulkan3: Intel Arc B580 (BMG G21), 12216 MiB
|
||||
```
|
||||
|
||||
Vulkan2 maps to PCI `0000:07:00.0`, confirmed through
|
||||
`/sys/class/drm/renderD129/device`.
|
||||
|
||||
## Tool
|
||||
|
||||
```
|
||||
inference/hf2gguf/
|
||||
main.go dispatch, manifest types
|
||||
rawkv.go read-only GGUF KV walker, array support
|
||||
safetensors.go safetensors header and tensor bytes
|
||||
hfconfig.go config and tokenizer parsing, validation
|
||||
convert.go metadata reproduction, tensor mapping, F32 to F16
|
||||
verify.go byte-level comparison
|
||||
convert_test.go tests
|
||||
```
|
||||
|
||||
`go-gguf` returns an empty value for `BTypeArray`, so `rawkv.go` walks the KV
|
||||
section directly to keep the tokenizer arrays (`tokens`, `merges`, `token_type`)
|
||||
as raw bytes. Writing still goes through the `go-gguf` writer. GGUF
|
||||
serialization is not hand-rolled.
|
||||
|
||||
Commands:
|
||||
|
||||
```bash
|
||||
go run . dump -gguf models/open-1b-sft-f16.gguf -o models/open-1b-sft-f16.manifest.json
|
||||
go run . convert -ref models/open-1b-sft-f16.gguf \
|
||||
-safetensors models/open-1b-sft/model.safetensors \
|
||||
-config models/open-1b-sft/config.json \
|
||||
-tokenizer-config models/open-1b-sft/tokenizer_config.json \
|
||||
-tokenizer models/open-1b-sft/tokenizer.json \
|
||||
-o models/open-1b-sft-f16-go.gguf
|
||||
go run . verify -ref models/open-1b-sft-f16.gguf -got models/open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
## Tensor mapping
|
||||
|
||||
The reference names are the contract.
|
||||
|
||||
| GGUF tensor | HF source | Shape | Type |
|
||||
| --- | --- | --- | --- |
|
||||
| `token_embd.weight` | `embedding.tok_embeddings.weight` | 2048 x 128256 | F16 |
|
||||
| `token_embd_norm.weight` | `emb_norm.weight` | 2048 | F32 |
|
||||
| `output.weight` | `embedding.output.weight` | 2048 x 128256 | F16 |
|
||||
| `output_norm.weight` | `norm_out.weight` | 2048 | F32 |
|
||||
| `blk.i.attn_q.weight` | `blocks.i.attn.wq.weight` | 2048 x 2048 | F16 |
|
||||
| `blk.i.attn_k.weight` | `blocks.i.attn.wk.weight` | 2048 x 512 | F16 |
|
||||
| `blk.i.attn_v.weight` | `blocks.i.attn.wv.weight` | 2048 x 512 | F16 |
|
||||
| `blk.i.attn_output.weight` | `blocks.i.attn.wo.weight` | 2048 x 2048 | F16 |
|
||||
| `blk.i.ffn_gate.weight` | `blocks.i.ffn.w_gate_up.weight`, first half | 2048 x 5632 | F16 |
|
||||
| `blk.i.ffn_up.weight` | `blocks.i.ffn.w_gate_up.weight`, second half | 2048 x 5632 | F16 |
|
||||
| `blk.i.ffn_down.weight` | `blocks.i.ffn.w_down.weight` | 5632 x 2048 | F16 |
|
||||
| `blk.i.attn_norm.weight` | `blocks.i.norm1.weight` | 2048 | F32 |
|
||||
| `blk.i.ffn_norm.weight` | `blocks.i.norm2.weight` | 2048 | F32 |
|
||||
|
||||
The fused `w_gate_up` is split at the row boundary. Per-channel `*.weight_scale`
|
||||
tensors in the checkpoint are dropped; the reference has none. F32 to F16 uses
|
||||
round-to-nearest, ties to even, matching the numpy and torch casts.
|
||||
|
||||
## Validation
|
||||
|
||||
```
|
||||
metadata: 39 checked, 0 mismatches
|
||||
tensors: 220 checked, 220 byte-identical, 0 mismatches
|
||||
verification PASSED
|
||||
```
|
||||
|
||||
```
|
||||
$ cmp models/open-1b-sft-f16.gguf models/open-1b-sft-f16-go.gguf && echo IDENTICAL
|
||||
IDENTICAL
|
||||
```
|
||||
|
||||
Both files hash to
|
||||
`a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae`.
|
||||
|
||||
Notable metadata, all byte-identical: `general.architecture=open1b`,
|
||||
`open1b.block_count=24`, `open1b.context_length=4096`,
|
||||
`open1b.attention.head_count=16`, `open1b.attention.head_count_kv=4`,
|
||||
`open1b.rope.freq_base=500000`, `open1b.attention.sliding_window=512`,
|
||||
`open1b.attention.sliding_window_pattern=5`, `tokenizer.ggml.model=gpt2`,
|
||||
`tokenizer.ggml.pre=gpt-2`, `tokenizer.ggml.eos_token_id=4`. The full list is in
|
||||
the manifest JSON.
|
||||
|
||||
`go build`, `go vet`, and `go test -race` are clean.
|
||||
|
||||
## Serve
|
||||
|
||||
```bash
|
||||
setsid --fork ./build-vulkan/bin/llama-server \
|
||||
-m models/open-1b-sft-f16-go.gguf \
|
||||
--device Vulkan2 -ngl 99 -c 32768 -fa off --jinja \
|
||||
--spec-type ngram-map-k,ngram-cache \
|
||||
-t 16 --parallel 1 --alias open-1b \
|
||||
--host 127.0.0.1 --port 8085 >/tmp/open1b.log 2>&1 </dev/null &
|
||||
```
|
||||
|
||||
| Metric | Value |
|
||||
| --- | --- |
|
||||
| Decode | 111.7 to 117.2 tok/s |
|
||||
| Prefill | about 892 tok/s |
|
||||
| VRAM | about 3.6 GiB, released after stop |
|
||||
|
||||
Sample outputs, greedy:
|
||||
|
||||
```
|
||||
prompt: The three primary colors are
|
||||
out: red, blue, and yellow.
|
||||
|
||||
prompt: Q: What is the capital of France? A:
|
||||
out: Paris
|
||||
```
|
||||
|
||||
Stopped with `kill` after reading the pid from `ss -ltnp`.
|
||||
|
||||
## Caveats
|
||||
|
||||
1. Chat template. With the vendor tail `...assistant<|end_header|>` followed by a
|
||||
blank line, this checkpoint emits an end-of-turn token first and returns an
|
||||
empty reply. Reproduced with and without the speculative decoder, so it is not
|
||||
the decoder. A single newline, an extra newline, or a seed token produces a
|
||||
coherent answer. Since our GGUF is byte-identical to the reference, this is a
|
||||
property of the released checkpoint.
|
||||
2. Context cap. `open1b.context_length` is 4096, so the requested 32768 is capped.
|
||||
3. The load warning `special_eos_id is not in special_eog_ids` also appears for
|
||||
the reference file, so it is not introduced by the conversion.
|
||||
4. Long greedy generation without a repetition penalty loops on this small model.
|
||||
5. Process note. During one early check the response was piped through `python3`
|
||||
to pretty-print JSON. That was a mistake and a breach of the no-Python rule.
|
||||
The tool itself is entirely Go, and nothing in the pipeline depends on Python.
|
||||
No Python files or virtualenv were created for the tool.
|
||||
|
||||
## Files
|
||||
|
||||
| Path | What |
|
||||
| --- | --- |
|
||||
| `hf2gguf/` | Go module with tests |
|
||||
| `hf2gguf/README.md` | usage |
|
||||
| `models/open-1b-sft-f16-go.gguf` | our output |
|
||||
| `models/open-1b-sft-f16.manifest.json` | dumped contract |
|
||||
| `models/open-1b-sft-f16.gguf` | reference |
|
||||
| `/tmp/open1b.log` | server log |
|
||||
@@ -1,214 +0,0 @@
|
||||
# Gensyn OPEN-1B audit — independent replay (CPU, Linux x86-64)
|
||||
|
||||
- **Date:** 2026-09-28
|
||||
- **Host:** `brainstation`, Linux x86-64, kernel `7.3.0-070300rc1-generic` (Ubuntu), **no NVIDIA GPU**
|
||||
- **Auditor:** SE sub-agent (independent)
|
||||
- **Workdir:** `/root/projects/gensyn/audit`
|
||||
- **Harness:** `gensyn-ai/open-transformers` @ `d7b7b674cd851f7a16815229f060658180cb772b`
|
||||
("Initial commit: the OPEN-1B pretraining and audit-replay harness", 2026-09-15), cloned via git.
|
||||
- **Verdict:** ✅ **MATCH** on the `1b_repop_v2` init unit. ❌ No training-interval
|
||||
replay run (not defined by this kit and not feasible on this host — see §7).
|
||||
|
||||
---
|
||||
|
||||
## 1. Kit selection
|
||||
|
||||
Four kits were listed. All four `trajectory.json` files declare the **same**
|
||||
`1b_repop_v2` init commitment
|
||||
`16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed`, so the choice
|
||||
of kit does not change the init hash under test. The authoritative mapping is
|
||||
published by the audit app itself at `https://open1b.gensyn.ai/manifest.json`:
|
||||
|
||||
```json
|
||||
"run": { "id": "20260722-213626-ad3276b", "model": "1b_repop_v2",
|
||||
"initStateHash": "16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed" },
|
||||
"audit": { "kit": { "id": "pt-f91110a0d0c8_rp-c9ca6e71e673",
|
||||
"urlBase": "https://storage.googleapis.com/gensyn-audit-public/audit-kit/pt-f91110a0d0c8_rp-c9ca6e71e673" } }
|
||||
```
|
||||
|
||||
**Kit under test: `pt-f91110a0d0c8_rp-c9ca6e71e673`.**
|
||||
|
||||
- `pretrain_commit`: `f91110a0d0c84fa3bad808f365567d9c655d10b2`
|
||||
- `repop_commit`: `c9ca6e71e673660afc6c87de2592fa6f62c87b15`
|
||||
- `torch_requirement`: `torch==2.10.0`
|
||||
|
||||
(The other three kits — `pt-cb4ac29438bc_rp-…`, `pt-f6bc086dfebd_rp-…`,
|
||||
`pt-f5eece09abe6_rp-…` — carry the same init commitment but are older
|
||||
pretrain/repop pins. Two share the `c9ca6e71e673` repop but a different pretrain
|
||||
commit; the app manifest picks `f91110a0d0c8`.)
|
||||
|
||||
## 2. Toolchain
|
||||
|
||||
| Component | Version / identity |
|
||||
|---|---|
|
||||
| Python | 3.11.16 (managed by `uv`; system Python 3.14 untouched) |
|
||||
| `uv` | 0.12.17 |
|
||||
| PyTorch | `2.10.0+cpu` (`torch.version.cuda == None`) |
|
||||
| `repop` | 0.1.5, `build_info().commit == c9ca6e71e673660afc6c87de2592fa6f62c87b15` ✅ (== kit.json `repop_commit`); backends `["cpu","cuda"]` |
|
||||
| `pretrain` | 0.1.0 (kit wheel) |
|
||||
| Go (glue tools) | go1.27.0 (fabric rule: all glue/parsing in Go) |
|
||||
|
||||
**Deviation, stated plainly:** the RUNBOOK targets Linux hosts with an NVIDIA GPU
|
||||
and points them at the CUDA 12.9 PyTorch index. This host has no GPU, and the
|
||||
README names CPU as the *reference* device, so the exact pin `torch==2.10.0` was
|
||||
installed from PyTorch's official **CPU** index (`.../whl/cpu`, wheel
|
||||
`2.10.0+cpu`). The pinned version is unchanged; only the CPU build variant was
|
||||
chosen deliberately, not by an accidental PyPI fallback. Init is device-independent
|
||||
by construction (see §6), so this does not weaken the init result.
|
||||
|
||||
Python (`uv`-managed) is used **only** because the vendor harness is Python and
|
||||
ships as wheels; all download/verification/listing glue is Go under `tools/`
|
||||
(`kitinspect`, `trajinspect`, `kitfetch`, `gslist`).
|
||||
|
||||
## 3. Commands run
|
||||
|
||||
```bash
|
||||
# workdir + docs
|
||||
mkdir -p /root/projects/gensyn/audit && cd /root/projects/gensyn/audit
|
||||
git clone --depth 1 https://github.com/gensyn-ai/open-transformers
|
||||
|
||||
# kit manifests + trajectories (Go inspector)
|
||||
go run ./tools/kitinspect kits/*/
|
||||
go run ./tools/trajinspect kits/*/trajectory.json
|
||||
|
||||
# download + per-file sha256 verification against kit.json (Go tool,
|
||||
# downloads to .part, verifies, removes on mismatch)
|
||||
go run ./tools/kitfetch kits/pt-f91110a0d0c8_rp-c9ca6e71e673 \
|
||||
kit-pt-f91110a0d0c8_rp-c9ca6e71e673
|
||||
|
||||
# Python 3.11 env
|
||||
uv venv --python 3.11 .venv
|
||||
uv pip install --python .venv --index-url https://download.pytorch.org/whl/cpu "torch==2.10.0"
|
||||
uv pip install --python .venv \
|
||||
./kit-.../repop-0.1.5-cp311-cp311-linux_x86_64.whl \
|
||||
./kit-.../pretrain-0.1.0-cp311-cp311-linux_x86_64.whl
|
||||
|
||||
# provenance assertions
|
||||
.venv/bin/python -c "import repop,json; print(repop.build_info())"
|
||||
|
||||
# THE AUDIT (init unit)
|
||||
PRETRAIN_AUDIT_MEMLOG=1 /usr/bin/time -v .venv/bin/pretrain-audit-replay \
|
||||
--from-init --until-step 0 \
|
||||
--config-name 1b_repop_v2 \
|
||||
--device cpu \
|
||||
--expect-hash 16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed
|
||||
```
|
||||
|
||||
## 4. SHA-256 verification table (all 5 kit files)
|
||||
|
||||
Every file was hashed **before** install; the Go fetcher adopts a file only on a
|
||||
full 64-hex match and deletes rejected bytes. Expected values are read from the
|
||||
kit's own `kit.json`.
|
||||
|
||||
| File | expected (`kit.json`) | computed | result |
|
||||
|---|---|---|---|
|
||||
| `pretrain-0.1.0-cp311-cp311-linux_x86_64.whl` | `ecc49d1c05c0e2876a59d98d877795769d6e9620eb66e4b4c866b16f695fb174` | same | ✅ OK |
|
||||
| `pretrain-0.1.0-cp311-cp311-macosx_14_0_arm64.whl` | `fbd23a54aa0bf87775e86493d67f759d1c1f4cc1dcd63ad991fba59dcb92491c` | same | ✅ OK |
|
||||
| `repop-0.1.5-cp311-cp311-linux_x86_64.whl` | `15f171643871211b2a772ee83c94833c0be2eef0495790cedc33813c95147ff0` | same | ✅ OK |
|
||||
| `repop-0.1.5-cp311-cp311-macosx_14_0_arm64.whl` | `d8658e0327c7278812ecb6dd455cd4cf8723a974a78788adba41d5f747289c69` | same | ✅ OK |
|
||||
| `trajectory.json` | `9435515c37d8956d0c81d5bc78c0a383bb6bf27c57b5dbaf1f8be564df0b324a` | same | ✅ OK |
|
||||
|
||||
Byte sizes also matched `kit.json`. Only the two **linux_x86_64** wheels were
|
||||
installed; the macOS arm64 wheels were downloaded and verified but not installed.
|
||||
|
||||
## 5. Init-unit result — MATCH
|
||||
|
||||
Raw result object printed by the harness (stdout, exit status 0):
|
||||
|
||||
```json
|
||||
{
|
||||
"step": 0,
|
||||
"consumed_tokens": 0,
|
||||
"state_hash": "16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed",
|
||||
"mode": "init",
|
||||
"repop": { "commit": "c9ca6e71e673660afc6c87de2592fa6f62c87b15",
|
||||
"backends": ["cpu", "cuda"], "cuda_arch_list": "7.5 8.0 9.0" },
|
||||
"device": "cpu",
|
||||
"expected": "16554a1119745f1b9bf4ac60b03226e5e9ca1247a2bd56169cd4c822fd457aed",
|
||||
"match": true,
|
||||
"cpu_threads": { "requested": "auto", "source": "runtime-default",
|
||||
"torch_num_threads": 8, "omp_num_threads": null, "mkl_num_threads": null }
|
||||
}
|
||||
```
|
||||
|
||||
Log line: `from-init: regenerated init state_hash=16554a1119745f1b expected=16554a1119745f1b MATCH=True`.
|
||||
Config `1b_repop_v2`, seed `42`, loss path `fused CE+z-loss`. The only warning is
|
||||
the expected `not distributed + no CUDA — parallelize applies AC only (FSDP
|
||||
skipped; dev mode)`, i.e. the documented CPU reference path.
|
||||
|
||||
**Resource notes:** wall **58.3 s**, user 78.5 s / sys 61.1 s, **peak RSS
|
||||
16.80 GB** (16,804,956 KB), **0 swaps**, exit 0. (README/RUNBOOK size this unit at
|
||||
~21.9 GB peak on CPU; we measured 16.8 GB. Free RAM was ~11 GB and the unit still
|
||||
completed without swapping, so the doc figure is conservative.)
|
||||
|
||||
## 6. What this proves — and what it does not
|
||||
|
||||
**Proves.** The bytes installed are the bytes `kit.json` published (all five
|
||||
SHA-256s match). The `repop` kernel build is the one the kit claims
|
||||
(`build_info().commit == repop_commit`). Running the vendor harness on this
|
||||
CPU, from seed, the `1b_repop_v2` **initial state** — seeded device-independent
|
||||
trunc-normal init plus zeroed optimizer moments — reproduces the published
|
||||
canonical hash `16554a11…` **bit-for-bit**. Independent third-party
|
||||
reproduction of the run's init commitment: ✅.
|
||||
|
||||
**Does not prove.**
|
||||
|
||||
1. **No training interval.** Per the README: "An initialization-only unit does
|
||||
not verify a training interval." A match here says nothing about any forward,
|
||||
backward, AdamW or data-stream step. The claimed bitwise reproducibility of
|
||||
*optimizer steps* is **not** tested by this run.
|
||||
2. **`repop` is closed source.** Only compiled wheels are shipped; the kernel
|
||||
arithmetic that makes training bitwise reproducible cannot be read or
|
||||
independently re-derived from this kit. The init unit does not even exercise
|
||||
the kernels that the recent `c9ca6e71e673` repin changed (the trajectory notes
|
||||
say exactly this), so a match is *not* evidence for the kernel-level BFR
|
||||
contract at that commit.
|
||||
3. **v3-hash coverage.** The README states the v3 hash covers weights, optimizer
|
||||
state, gradients and the batch digest, but **not** RNG, the data-stream
|
||||
cursor, spike state, or the `meta.json` descriptor keys. Even a matching
|
||||
interval hash would leave those unverified.
|
||||
4. **Init is the easy case by design.** `init.py` samples Philox on CPU and
|
||||
byte-copies, so it is device-independent; it is expected to match across
|
||||
devices. The hard cross-device claim lives in the training kernels, which
|
||||
this unit does not touch.
|
||||
5. Provenance of the *published run* is not established; only that the pinned
|
||||
artifacts reproduce the published commitment on this machine.
|
||||
|
||||
## 7. Step-interval replay — deliberately not attempted
|
||||
|
||||
Stopping after the init unit is a considered decision, not a stall:
|
||||
|
||||
- **Not defined by the kit.** This kit's `trajectory.json` (`init-units-v1`)
|
||||
contains **only 3 init units** — `100m_smoke_repop`, `1b_repop_run3`,
|
||||
`1b_repop_v2`. Its own note says: "Step-interval units are added per run once
|
||||
its checkpoints and state_hash files are published." **No interval unit with a
|
||||
canonical target hash is published here**, so the kit defines no
|
||||
step-interval commitment to check. (The run's per-step log exists at
|
||||
`gs://gensyn-open-1b/logs/state_hashes.jsonl`, but the harness has no automatic
|
||||
lookup and the audit app gates submissions.)
|
||||
- **Memory.** A step-interval replay needs ~24 GB (README), and the audit's
|
||||
auto-offload only reaches "every published unit" at that figure. This host had
|
||||
~11 GB RAM available (29 GB total, 18 GB in use); an init unit already peaked at
|
||||
16.8 GB. The heavy replay would swap-thrash and would not fit honestly.
|
||||
- **Disk/size.** One checkpoint `ckpt/step_000000100/` is **19.31 GB**
|
||||
(150 objects); the full `ckpt/` prefix is **15.64 TB** (810 checkpoint dirs).
|
||||
With 39 GB free, a single checkpoint is tight against free space and the
|
||||
documented `--from-init + --gcs-root` combination is broken (wrong shard
|
||||
anchor), so a from-init interval would first require staging shards via
|
||||
`--data-root`.
|
||||
|
||||
Re-attempting an interval audit should be done on a host with ≥32 GB free RAM
|
||||
(NVIDIA GPU preferred: `--device cuda`) and ≥60 GB free disk.
|
||||
|
||||
## 8. Files produced
|
||||
|
||||
- `open-transformers/` — harness clone (docs read: `README.md`,
|
||||
`docs/audit-replay-usage.md`, `scripts/audit_volunteer/RUNBOOK.md`)
|
||||
- `kits/<kit>/kit.json`, `kits/<kit>/trajectory.json` — manifests
|
||||
- `kit-pt-f91110a0d0c8_rp-c9ca6e71e673/` — verified wheels + trajectory
|
||||
- `.venv/` — Python 3.11 audit env
|
||||
- `init-replay.log` — full captured replay output + `/usr/bin/time -v`
|
||||
- `tools/{kitinspect,trajinspect,kitfetch,gslist}` — Go glue
|
||||
- `REPORT.md` — this file
|
||||
|
||||
No secrets were written. Nothing outside the workdir was modified or deleted.
|
||||
@@ -1,332 +0,0 @@
|
||||
# Gensyn open-1b (SFT) — local bring-up & proof of run
|
||||
|
||||
Epic: `vado/1b#1` / task #4 (SE). Workdir: `/root/projects/gensyn/inference/`.
|
||||
Engine: existing shared llama.cpp **Vulkan** build (`/root/projects/inference/build-vulkan/bin/llama-server`).
|
||||
Language: **Go 1.27 only** (see "Process note" re one accidental `python3` call).
|
||||
|
||||
## TL;DR
|
||||
|
||||
- Built a pure-Go tool `hf2gguf` (module `hf2gguf`) that **dumps** the reference GGUF
|
||||
(go-gguf + a minimal raw-KV walker for arrays), **converts** `model.safetensors`
|
||||
→ `models/open-1b-sft-f16-go.gguf`, and **verifies** the two files.
|
||||
- **Validation: PASS — 39/39 metadata KV byte-identical, 220/220 tensors byte-identical.**
|
||||
Whole files are byte-for-byte identical (`cmp` + SHA-256 match).
|
||||
- **Served** on one Arc (Vulkan2 / `07:00.0`) with the existing Vulkan build; coherent
|
||||
output, **~114 tok/s decode**, **~892 tok/s prefill**, ~**3.6 GiB VRAM**.
|
||||
- No commit made (all under gitignored `inference/`).
|
||||
|
||||
Reference SHA-256 (and our output — identical):
|
||||
`a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae`
|
||||
|
||||
---
|
||||
|
||||
## 1. Inputs & topology
|
||||
|
||||
| Item | Path | Notes |
|
||||
|------|------|-------|
|
||||
| HF checkpoint (fp32) | `models/open-1b-sft/model.safetensors` | 6,432,081,672 B; dtype **F32**; header 34560 B |
|
||||
| Reference GGUF (f16) | `models/open-1b-sft-f16.gguf` | 3,220,153,856 B; vendor converter; **read-only oracle** |
|
||||
| HF config | `models/open-1b-sft/config.json` | `model_type=open1b`, 24 layers, hidden 2048, heads 16/4, head_dim 128, ffn 5632, vocab 128256, rope_theta 5e5, rms_eps 1e-5, swa 512 every 5, qk_norm gain-free, embedding_norm, untied |
|
||||
| Vendor Python | `models/open-1b-sft/modeling_open1b.py` | read only, never executed |
|
||||
| Engine | `/root/projects/inference/build-vulkan/bin/llama-server` | symlink → `/mnt/2TB/projects/build-vulkan`; shared prod tree, untouched |
|
||||
|
||||
GPU devices as reported by the engine (`--list-devices`):
|
||||
|
||||
```
|
||||
Vulkan0: AMD Ryzen 7 7700X (RADV RAPHAEL_MENDOCINO) (15835 MiB)
|
||||
Vulkan1: Intel(R) Arc(tm) B580 Graphics (BMG G21) (12216 MiB)
|
||||
Vulkan2: Intel(R) Arc(tm) B580 Graphics (BMG G21) (12216 MiB)
|
||||
Vulkan3: Intel(R) Arc(tm) B580 Graphics (BMG G21) (12216 MiB)
|
||||
```
|
||||
|
||||
`Vulkan2` was confirmed to map to PCI `0000:07:00.0` (Arc #2) via
|
||||
`/sys/class/drm/renderD129/device`.
|
||||
|
||||
---
|
||||
|
||||
## 2. Tool: `hf2gguf` (Go 1.27, `github.com/cymertek/go-gguf`)
|
||||
|
||||
```
|
||||
inference/hf2gguf/
|
||||
go.mod, go.sum
|
||||
main.go # subcommand dispatch + JSON manifest types
|
||||
rawkv.go # minimal read-only GGUF KV walker (fills go-gguf's array gap)
|
||||
safetensors.go # safetensors header + tensor byte access
|
||||
hfconfig.go # config.json / tokenizer_config.json / tokenizer.json validation
|
||||
convert.go # metadata reproduction + HF→GGUF tensor mapping + F32→F16
|
||||
verify.go # byte-level metadata & tensor comparison
|
||||
convert_test.go
|
||||
```
|
||||
|
||||
### Why a raw KV walker
|
||||
|
||||
`go-gguf`'s `MetadataEntry.Value()` intentionally returns an empty value for
|
||||
`BTypeArray` (see `readLazyValue` in the library). The tokenizer arrays
|
||||
(`tokens`, `scores`→`token_type`, `merges`) are exactly the values we must copy
|
||||
verbatim, so `rawkv.go` reads the KV section directly and preserves each array's
|
||||
`elem_type`, element count, and **raw element bytes**. Those raw bytes are fed
|
||||
straight into go-gguf's writer `Value{Raw: ...}`, so serialization is still done
|
||||
by the library (nothing hand-rolled on the write path).
|
||||
|
||||
### Subcommands
|
||||
|
||||
```bash
|
||||
# 2a. dump — emit the reproduction contract as JSON
|
||||
go run . dump -gguf models/open-1b-sft-f16.gguf -o models/open-1b-sft-f16.manifest.json
|
||||
|
||||
# 2b/c. convert — reproduce metadata + map safetensors→GGUF (fp32→f16)
|
||||
go run . convert \
|
||||
-ref models/open-1b-sft-f16.gguf \
|
||||
-safetensors models/open-1b-sft/model.safetensors \
|
||||
-config models/open-1b-sft/config.json \
|
||||
-tokenizer-config models/open-1b-sft/tokenizer_config.json \
|
||||
-tokenizer models/open-1b-sft/tokenizer.json \
|
||||
-o models/open-1b-sft-f16-go.gguf
|
||||
|
||||
# 3. verify — byte-level equality against the reference
|
||||
go run . verify -ref models/open-1b-sft-f16.gguf -got models/open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
`dump` output (the contract) is at
|
||||
`models/open-1b-sft-f16.manifest.json` (39 metadata entries + 220 tensors,
|
||||
with per-array `raw_sha256`).
|
||||
|
||||
### Tensor mapping (reference names are the contract)
|
||||
|
||||
Shapes are the reference's; ggml `ne0` is the innermost (= HF input) dim, so HF
|
||||
bytes are copied unpermuted with the dims reversed.
|
||||
|
||||
| Reference tensor | HF source | Shape | Type | Count |
|
||||
|---|---|---|---|---|
|
||||
| `token_embd.weight` | `embedding.tok_embeddings.weight` | [2048,128256] | F16 | 1 |
|
||||
| `token_embd_norm.weight` | `emb_norm.weight` | [2048] | F32 | 1 |
|
||||
| `output.weight` | `embedding.output.weight` | [2048,128256] | F16 | 1 |
|
||||
| `output_norm.weight` | `norm_out.weight` | [2048] | F32 | 1 |
|
||||
| `blk.{i}.attn_q.weight` | `blocks.{i}.attn.wq.weight` | [2048,2048] | F16 | 24 |
|
||||
| `blk.{i}.attn_k.weight` | `blocks.{i}.attn.wk.weight` | [2048,512] | F16 | 24 |
|
||||
| `blk.{i}.attn_v.weight` | `blocks.{i}.attn.wv.weight` | [2048,512] | F16 | 24 |
|
||||
| `blk.{i}.attn_output.weight` | `blocks.{i}.attn.wo.weight` | [2048,2048] | F16 | 24 |
|
||||
| `blk.{i}.ffn_gate.weight` | `blocks.{i}.ffn.w_gate_up.weight` (first half) | [2048,5632] | F16 | 24 |
|
||||
| `blk.{i}.ffn_up.weight` | `blocks.{i}.ffn.w_gate_up.weight` (second half) | [2048,5632] | F16 | 24 |
|
||||
| `blk.{i}.ffn_down.weight` | `blocks.{i}.ffn.w_down.weight` | [5632,2048] | F16 | 24 |
|
||||
| `blk.{i}.attn_norm.weight` | `blocks.{i}.norm1.weight` | [2048] | F32 | 24 |
|
||||
| `blk.{i}.ffn_norm.weight` | `blocks.{i}.norm2.weight` | [2048] | F32 | 24 |
|
||||
|
||||
- The fused `w_gate_up` is split at the row boundary (`chunk(2,-1)` → first half
|
||||
`gate`, second half `up`), matching the reference.
|
||||
- Quantized per-channel `*.weight_scale` tensors in the checkpoint are **dropped**
|
||||
(the reference has none).
|
||||
- F32→F16 uses IEEE round-to-nearest, ties-to-even (`f32bitsToF16`), matching
|
||||
numpy/torch casts; the reference tensors are byte-identical to ours, which
|
||||
empirically proves the rounding matched.
|
||||
- HF config/tokenizer are **parsed and validated** against the reference, but the
|
||||
reference remains authoritative for every emitted value.
|
||||
|
||||
---
|
||||
|
||||
## 3. Validation
|
||||
|
||||
`go run . verify` streams both files and compares on raw wire bytes:
|
||||
|
||||
```
|
||||
metadata: 39 checked, 0 mismatches
|
||||
tensors: 220 checked, 220 byte-identical, 0 mismatches
|
||||
verification PASSED: 39 metadata keys and 220 tensors byte-identical
|
||||
```
|
||||
|
||||
Whole-file check:
|
||||
|
||||
```
|
||||
$ cmp models/open-1b-sft-f16.gguf models/open-1b-sft-f16-go.gguf && echo IDENTICAL
|
||||
IDENTICAL
|
||||
$ sha256sum models/open-1b-sft-f16.gguf models/open-1b-sft-f16-go.gguf
|
||||
a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae open-1b-sft-f16.gguf
|
||||
a18530417c732bb115a3501a7e1388ea7a54bd2a96c70be571d1249aa210fbae open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
The per-tensor diff is empty (0 mismatches) — every tensor's payload is
|
||||
byte-identical, in the same order, with the same shape and ggml type.
|
||||
|
||||
### Metadata contract (all 39 keys, all byte-identical)
|
||||
|
||||
| Key | Type | Value |
|
||||
|---|---|---|
|
||||
| `general.architecture` | STRING | `open1b` |
|
||||
| `general.type` | STRING | `model` |
|
||||
| `general.name` | STRING | `Open 1b Sft` |
|
||||
| `general.finetune` | STRING | `sft` |
|
||||
| `general.basename` | STRING | `open` |
|
||||
| `general.size_label` | STRING | `1B` |
|
||||
| `general.license` | STRING | `apache-2.0` |
|
||||
| `general.base_model.count` | UINT32 | 1 |
|
||||
| `general.base_model.0.name` | STRING | `Open 1b Midtrained 93B` |
|
||||
| `general.base_model.0.organization` | STRING | `Gensyn` |
|
||||
| `general.base_model.0.repo_url` | STRING | `https://huggingface.co/Gensyn/open-1b-midtrained-93B` |
|
||||
| `general.dataset.count` | UINT32 | 1 |
|
||||
| `general.dataset.0.name` | STRING | `Tulu 3 Sft Olmo 2 Mixture 0225` |
|
||||
| `general.dataset.0.version` | STRING | `0225` |
|
||||
| `general.dataset.0.organization` | STRING | `Allenai` |
|
||||
| `general.dataset.0.repo_url` | STRING | `https://huggingface.co/allenai/tulu-3-sft-olmo-2-mixture-0225` |
|
||||
| `general.tags` | ARRAY[STRING] | 5 (`gensyn`, `verifiable-training`, `reproducible-training`, `repops`, `text-generation`) |
|
||||
| `general.languages` | ARRAY[STRING] | 1 (`en`) |
|
||||
| `open1b.block_count` | UINT32 | 24 |
|
||||
| `open1b.context_length` | UINT32 | 4096 |
|
||||
| `open1b.embedding_length` | UINT32 | 2048 |
|
||||
| `open1b.feed_forward_length` | UINT32 | 5632 |
|
||||
| `open1b.attention.head_count` | UINT32 | 16 |
|
||||
| `open1b.attention.head_count_kv` | UINT32 | 4 |
|
||||
| `open1b.rope.freq_base` | FLOAT32 | 500000 |
|
||||
| `open1b.attention.layer_norm_rms_epsilon` | FLOAT32 | 1e-05 |
|
||||
| `open1b.attention.key_length` | UINT32 | 128 |
|
||||
| `open1b.attention.value_length` | UINT32 | 128 |
|
||||
| `general.file_type` | UINT32 | 1 (F16) |
|
||||
| `open1b.attention.sliding_window` | UINT32 | 512 |
|
||||
| `open1b.attention.sliding_window_pattern` | UINT32 | 5 |
|
||||
| `general.quantization_version` | UINT32 | 2 |
|
||||
| `tokenizer.ggml.model` | STRING | `gpt2` |
|
||||
| `tokenizer.ggml.pre` | STRING | `gpt-2` |
|
||||
| `tokenizer.ggml.tokens` | ARRAY[STRING] | 128256 (sha256 `30bab437…`) |
|
||||
| `tokenizer.ggml.token_type` | ARRAY[INT32] | 128256 (sha256 `5ca8c567…`) |
|
||||
| `tokenizer.ggml.merges` | ARRAY[STRING] | 127994 (sha256 `9e3a7dd4…`) |
|
||||
| `tokenizer.ggml.eos_token_id` | UINT32 | 4 |
|
||||
| `tokenizer.chat_template` | STRING | (501-byte Jinja template) |
|
||||
|
||||
Array `raw_sha256` values are in `models/open-1b-sft-f16.manifest.json`.
|
||||
|
||||
### HF cross-checks performed by `convert`
|
||||
|
||||
```
|
||||
config.json OK: arch=open1b layers=24 hidden=2048 heads=16/4 head_dim=128 ffn=5632 vocab=128256 swa=512/5 tie=false qk_norm=true(gain=false) emb_norm=true
|
||||
tokenizer_config.json OK: eos=<|eot|> chat_template=501 bytes
|
||||
tokenizer.json OK: type=BPE vocab=128256 +added=6 -> 128256 tokens, 127994 merges
|
||||
```
|
||||
|
||||
### Go build / vet / test
|
||||
|
||||
```
|
||||
$ go build ./... # OK
|
||||
$ go vet ./... # OK
|
||||
$ go test -race -v ./...
|
||||
--- PASS: TestF32BitsToF16 (0.00s)
|
||||
--- PASS: TestF32ToF16Bytes (0.00s)
|
||||
--- PASS: TestRawKVRoundTrip (0.00s)
|
||||
--- PASS: TestVerifyRealFiles (6.59s)
|
||||
PASS
|
||||
ok hf2gguf 7.602s
|
||||
```
|
||||
|
||||
`TestVerifyRealFiles` re-runs the full 3.2 GB byte comparison (skipped on
|
||||
`-short` or when the artifacts are absent).
|
||||
|
||||
---
|
||||
|
||||
## 4. Serve on one Arc (Vulkan2)
|
||||
|
||||
```
|
||||
setsid --fork /root/projects/inference/build-vulkan/bin/llama-server \
|
||||
-m /root/projects/gensyn/inference/models/open-1b-sft-f16-go.gguf \
|
||||
--device Vulkan2 -ngl 99 -c 32768 -fa off --jinja \
|
||||
--spec-type ngram-map-k,ngram-cache -t 16 --parallel 1 --alias open-1b \
|
||||
--host 127.0.0.1 --port 8085 >/tmp/open1b.log 2>&1 </dev/null &
|
||||
```
|
||||
|
||||
Startup log:
|
||||
|
||||
```
|
||||
load_model: loading model '.../open-1b-sft-f16-go.gguf'
|
||||
load: special_eos_id is not in special_eog_ids - the tokenizer config may be incorrect
|
||||
llama_context: n_ctx_seq (32768) > n_ctx_train (4096) -- possible training context overflow
|
||||
load_model: the slot context (32768) exceeds the training context of the model (4096) - capping
|
||||
load_model: initializing, n_slots = 1, n_ctx_slot = 4096, kv_unified = 'false'
|
||||
model loaded
|
||||
listening on http://127.0.0.1:8085
|
||||
```
|
||||
|
||||
Device confirmation: PID `1378706` maps `/dev/dri/renderD129` with large
|
||||
`rw-s` regions; `renderD129 → /sys/devices/.../0000:07:00.0` = Arc #2 = Vulkan2.
|
||||
`/props` reports `"speculative.types":"none,ngram-map-k,ngram-cache"` and
|
||||
`"model_ftype":"F16"`.
|
||||
|
||||
### Performance (single Arc, 1 slot, `-fa off`, ngram spec)
|
||||
|
||||
| Metric | Value |
|
||||
|---|---|
|
||||
| Decode | **~111.7–117.2 tok/s** (e.g. 256 tok @ 111.65; 96 tok @ 117.20) |
|
||||
| Prefill | **~892 tok/s** (961 prompt tok in 1077 ms) |
|
||||
| VRAM on Vulkan2 | free 10971 → 7258 MiB ⇒ **≈ 3.6 GiB** used; fully released after `kill` |
|
||||
|
||||
### Sample outputs
|
||||
|
||||
```
|
||||
$ curl ... /completion {"prompt":"The three primary colors are", greedy}
|
||||
red, blue, and yellow.
|
||||
|
||||
$ curl ... /completion {"prompt":"Q: What is the capital of France?\nA:", greedy, 96}
|
||||
Paris
|
||||
|
||||
$ curl ... /completion (seeded chat turn, see caveat) 113.9 tok/s
|
||||
" Venus and Mars. Venus is the hottest planet in our Solar System, with
|
||||
temperatures reaching 465°C (1,470°F). Mars, on the other hand, is a
|
||||
terrestrial planet, meaning it has a solid surface and liquid water at its poles."
|
||||
```
|
||||
|
||||
### Stopping
|
||||
|
||||
```
|
||||
$ ss -ltnp | grep :8085 # -> pid=1378706
|
||||
$ kill 1378706 # never pkill -f
|
||||
```
|
||||
|
||||
Both the test server (:8085) and a diagnostic server (:8086) were stopped;
|
||||
`--list-devices` returned to 10971 MiB free on Vulkan2/3.
|
||||
|
||||
---
|
||||
|
||||
## 5. Caveats
|
||||
|
||||
1. **Chat template newline quirk (model-side, not conversion-side).** With the
|
||||
exact vendor template tail `<|end_header|>\n\n` for the assistant turn, this
|
||||
checkpoint emits `<|eot|>` as the first sampled token → empty reply / instant
|
||||
EOS (reproduced on both :8085 with ngram spec and a :8086 run with
|
||||
`--spec-type none`, so it is **not** the speculative decoder). A single `\n`,
|
||||
`\n\n\n`, or a seed token makes it answer coherently:
|
||||
|
||||
| tail after `assistant<|end_header|>` | result |
|
||||
|---|---|
|
||||
| `\n\n` (vendor template) | immediate EOS |
|
||||
| `\n` | `\n1. **Earth**: …` (coherent) |
|
||||
| `\n\n\n` | `\n1. **Earth**: …` (coherent) |
|
||||
| ` ` | `\nSure, here are two names…` (coherent) |
|
||||
|
||||
Because our GGUF is byte-identical to the vendor reference, this is a
|
||||
property of the released checkpoint/GGUF (likely SFT formatting), not of our
|
||||
conversion. Workarounds for consumers: use `ignore_eos` + trim, seed the
|
||||
assistant turn, or fix the template's trailing newline.
|
||||
2. **Context capped to 4096.** `open1b.context_length = 4096`, so the requested
|
||||
`-c 32768` is capped to `n_ctx_slot = 4096`. KV is f16 (`-fa off` mandatory on
|
||||
Arc per `brainstation-gpu`).
|
||||
3. **`special_eos_id is not in special_eog_ids`** warning on load — present for
|
||||
the reference file too (byte-identical), so not introduced by us.
|
||||
4. **1B greedy degeneration.** Long greedy generation without repetition penalty
|
||||
loops on this small model; use sampling / `repeat_penalty` for long outputs.
|
||||
5. **Process note (disclosure).** During an early diagnostic I piped one
|
||||
`/completion` response through `python3 -c` to pretty-print JSON — a breach of
|
||||
the "no Python" rule (the tool itself is 100% Go, and nothing in the pipeline
|
||||
depends on Python). All subsequent parsing was done with Go/raw JSON. No `.py`
|
||||
file or venv was created; the only Python files in the tree are the vendor's
|
||||
read-only `models/open-1b-sft/*.py`.
|
||||
|
||||
---
|
||||
|
||||
## 6. Artifacts
|
||||
|
||||
| Path | What |
|
||||
|---|---|
|
||||
| `hf2gguf/` | Go module (`dump` / `convert` / `verify`) + tests |
|
||||
| `hf2gguf/README.md` | tool usage |
|
||||
| `models/open-1b-sft-f16-go.gguf` | our output (byte-identical to reference) |
|
||||
| `models/open-1b-sft-f16.manifest.json` | dumped contract (39 KV + 220 tensors) |
|
||||
| `models/open-1b-sft-f16.gguf` | reference (untouched) |
|
||||
| `/tmp/open1b.log` | server log |
|
||||
|
||||
No changes were committed; everything lives under gitignored `inference/`.
|
||||
+68
-36
@@ -1,39 +1,72 @@
|
||||
# hf2gguf
|
||||
|
||||
Pure-Go (Go 1.27) tool to convert a HuggingFace `open-1b` safetensors checkpoint
|
||||
into GGUF **byte-identically** to a supplied reference GGUF, plus a byte-level
|
||||
verifier. Built for epic `vado/1b#1` (Gensyn open-1b local bring-up).
|
||||
A Go 1.27 tool that converts a Hugging Face open-1b checkpoint to GGUF and
|
||||
verifies the result byte for byte. No Python, no torch, no pip. Library:
|
||||
[go-gguf](https://github.com/cymertek/go-gguf).
|
||||
|
||||
Library: [`github.com/cymertek/go-gguf`](https://github.com/cymertek/go-gguf)
|
||||
(reader + writer). No Python anywhere in the tool.
|
||||
For open-1b it reproduces llama.cpp's `convert_hf_to_gguf.py` output exactly,
|
||||
down to the same SHA-256. The output is deterministic and the check is built in,
|
||||
so the conversion can be trusted without trusting a Python environment.
|
||||
|
||||
## Why Go, and why this shape
|
||||
|
||||
| | hf2gguf | llama.cpp `convert_hf_to_gguf.py` |
|
||||
| --- | --- | --- |
|
||||
| Runtime | one Go binary | Python 3 with torch, numpy, transformers, gguf-py |
|
||||
| Setup | `go build` | pip or uv, wheels, pinned versions |
|
||||
| Startup | immediate | imports torch and its chain |
|
||||
| Memory | streams one tensor at a time, O(1) per tensor | loads tensors through torch |
|
||||
| Output check | built-in byte-level `verify` | none |
|
||||
| Output | byte-identical to a reference file | the reference |
|
||||
| Scope | open-1b only | many architectures |
|
||||
| Quantization | none, F16 only | many quant types |
|
||||
| Dependencies | go-gguf | a large Python tree |
|
||||
|
||||
The advantages that matter here:
|
||||
|
||||
- No Python runtime. Nothing to install or pin, and it runs where Python is
|
||||
unavailable or unwanted.
|
||||
- Deterministic output, checked byte for byte against a reference.
|
||||
- Small and readable. One binary, one small module, no large dependency tree.
|
||||
- Streaming. Tensors are converted one at a time; memory does not grow with the
|
||||
model size.
|
||||
- Easy to build and ship. `go build` and a single file in CI images.
|
||||
|
||||
## Limits
|
||||
|
||||
- Narrow by design. It maps one Llama-derived architecture and does not claim to
|
||||
convert arbitrary models.
|
||||
- Metadata is copied from a reference GGUF, not derived from the config alone.
|
||||
The config and tokenizer are parsed and validated, but the reference stays
|
||||
authoritative.
|
||||
- F16 only. There is no quantization to Q4, Q8, or other ggml types.
|
||||
- It depends on a third-party GGUF writer for serialization.
|
||||
|
||||
## Build
|
||||
|
||||
```bash
|
||||
go build ./...
|
||||
go vet ./...
|
||||
go test -race ./... # full test includes the 3.2 GB byte comparison
|
||||
go test -race ./... # the full test includes the 3.2 GB byte comparison
|
||||
```
|
||||
|
||||
## Subcommands
|
||||
## Commands
|
||||
|
||||
### `dump` — the reproduction contract
|
||||
### dump
|
||||
|
||||
Reads the reference GGUF and emits a JSON manifest of **all** metadata KV pairs
|
||||
(key, type, value / array elem-type + count + `raw_sha256`) and every tensor
|
||||
(name, shape, ggml type, nbytes).
|
||||
Reads the reference GGUF and writes a JSON manifest of all metadata pairs (key,
|
||||
type, value, or array element type, count, and `raw_sha256`) and every tensor
|
||||
(name, shape, ggml type, byte count).
|
||||
|
||||
```bash
|
||||
go run . dump -gguf models/open-1b-sft-f16.gguf -o models/open-1b-sft-f16.manifest.json
|
||||
```
|
||||
|
||||
`go-gguf` exposes scalar/string metadata and tensors; its `MetadataEntry.Value()`
|
||||
returns an empty value for `BTypeArray`, so `rawkv.go` walks the KV section
|
||||
directly to preserve tokenizer arrays (`tokens`, `merges`, `token_type`) as raw
|
||||
bytes. Writing still goes through `go-gguf`'s writer — nothing hand-rolls GGUF
|
||||
serialization.
|
||||
`go-gguf` returns an empty value for `BTypeArray`, so `rawkv.go` walks the KV
|
||||
section directly to keep the tokenizer arrays as raw bytes. Writing still goes
|
||||
through the `go-gguf` writer.
|
||||
|
||||
### `convert` — emit our GGUF
|
||||
### convert
|
||||
|
||||
```bash
|
||||
go run . convert \
|
||||
@@ -45,38 +78,37 @@ go run . convert \
|
||||
-o models/open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
- Metadata is copied verbatim from the reference KV section.
|
||||
- Tensors are mapped HF FQN → GGUF name (see the module docs in `convert.go`),
|
||||
with `blocks.{i}.ffn.w_gate_up.weight` split into `ffn_gate`/`ffn_up`, and
|
||||
`*.weight_scale` dropped (the reference has none).
|
||||
- Payloads stream from safetensors and are converted F32→F16 with IEEE
|
||||
round-to-nearest-even on the fly (O(1) memory per tensor).
|
||||
- `-config` / `-tokenizer-config` / `-tokenizer` are optional; when given they
|
||||
are parsed and **validated** against the reference (mismatch is fatal).
|
||||
- Metadata is copied verbatim from the reference.
|
||||
- Tensors are mapped by name, with `blocks.i.ffn.w_gate_up.weight` split into
|
||||
`ffn_gate` and `ffn_up`, and `*.weight_scale` dropped.
|
||||
- Payloads stream from safetensors and convert F32 to F16 on the fly, using
|
||||
round-to-nearest, ties to even.
|
||||
- The config and tokenizer flags are optional. When given, they are parsed and
|
||||
validated against the reference; a mismatch is fatal.
|
||||
|
||||
### `verify` — byte-level equality
|
||||
### verify
|
||||
|
||||
```bash
|
||||
go run . verify -ref models/open-1b-sft-f16.gguf -got models/open-1b-sft-f16-go.gguf
|
||||
```
|
||||
|
||||
Compares metadata on raw wire bytes and tensors by shape, type and full payload
|
||||
equality (streaming, first-diff offset reported on failure).
|
||||
Compares metadata on raw wire bytes and tensors by shape, type, and full payload.
|
||||
Reports the first differing offset on failure.
|
||||
|
||||
```
|
||||
metadata: 39 checked, 0 mismatches
|
||||
tensors: 220 checked, 220 byte-identical, 0 mismatches
|
||||
verification PASSED: 39 metadata keys and 220 tensors byte-identical
|
||||
verification PASSED
|
||||
```
|
||||
|
||||
## Layout
|
||||
|
||||
| File | Purpose |
|
||||
|---|---|
|
||||
| `main.go` | dispatch, manifest types, `dump` |
|
||||
| `rawkv.go` | read-only GGUF KV walker (array support) |
|
||||
| `safetensors.go` | safetensors header/byte access |
|
||||
| `hfconfig.go` | HF config/tokenizer parsing + validation |
|
||||
| `convert.go` | metadata reproduction, tensor mapping, F32→F16 |
|
||||
| `verify.go` | `verify` command + comparison engine |
|
||||
| --- | --- |
|
||||
| `main.go` | dispatch, manifest types, dump |
|
||||
| `rawkv.go` | read-only GGUF KV walker with array support |
|
||||
| `safetensors.go` | safetensors header and byte access |
|
||||
| `hfconfig.go` | HF config and tokenizer parsing, validation |
|
||||
| `convert.go` | metadata reproduction, tensor mapping, F32 to F16 |
|
||||
| `verify.go` | verify command and comparison engine |
|
||||
| `convert_test.go` | F16 rounding, KV round-trip, full-file verification |
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package main
|
||||
|
||||
// convert.go — emit models/open-1b-sft-f16-go.gguf from the HF safetensors,
|
||||
// convert.go converts the HF safetensors into models/open-1b-sft-f16-go.gguf,
|
||||
// reproducing the reference GGUF's metadata (verbatim) and tensor set/order.
|
||||
//
|
||||
// Tensor mapping (HF FQN -> GGUF name), shapes are the reference's (ggml ne0 is
|
||||
@@ -117,7 +117,7 @@ func cmdConvert(args []string) error {
|
||||
defer st.Close()
|
||||
|
||||
// Validate HF config against the reference contract (no values are taken from
|
||||
// it — the reference is authoritative — but mismatches are fatal).
|
||||
// it (the reference is authoritative), but mismatches are fatal).
|
||||
if *hfConfig != "" {
|
||||
if err := validateConfig(*hfConfig, kvs); err != nil {
|
||||
return fmt.Errorf("config validation: %w", err)
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package main
|
||||
|
||||
// hfconfig.go — parse and validate the HF config/tokenizer against the
|
||||
// hfconfig.go parses and validates the HF config/tokenizer against the
|
||||
// reference GGUF metadata. The reference remains authoritative for values; this
|
||||
// only proves the reference is consistent with the published HF files and that
|
||||
// we parsed them (per the task), it does not source any GGUF value from them.
|
||||
|
||||
@@ -35,7 +35,7 @@ func main() {
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Manifest types — the reproduction contract.
|
||||
// Manifest types for the reproduction contract.
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
type manifest struct {
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package main
|
||||
|
||||
// safetensors.go — minimal read-only HuggingFace safetensors index.
|
||||
// safetensors.go reads a minimal, read-only HuggingFace safetensors index.
|
||||
//
|
||||
// Format: [u64 LE header_len][header_len bytes of JSON][tensor data ...].
|
||||
// The JSON header maps tensor name -> {dtype, shape, data_offsets:[start,end]}
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package main
|
||||
|
||||
// verify.go — prove the emitted GGUF equals the reference: identical metadata
|
||||
// verify.go proves the emitted GGUF equals the reference: identical metadata
|
||||
// (keys, types, values; verified on raw wire bytes) and identical tensor set,
|
||||
// shapes, ggml types and per-tensor payload bytes.
|
||||
|
||||
|
||||
Reference in New Issue
Block a user