| --- |
| license: odc-by |
| language: [ko, en, zh, ru, ja] |
| pretty_name: clm_prod 5-lang monolingual BACKBONE sample (mC4) |
| tags: [clm-prod, byte-vocab, multilingual, backbone, sample] |
| --- |
| |
| # clm-backbone-5lang-sample |
|
|
| clm_prod 3B/7B BACKBONE corpus (step 2 DATA PREP). A **bounded streaming SAMPLE** — |
| NOT the full 60B-token pretrain set (that is the step 3 H100 fire). |
| |
| - **Source**: `allenai/c4` (mC4 multilingual), configs `ko/en/zh/ru/ja` |
| - **License**: ODC-BY (Open Data Commons Attribution) |
| - **real_fraction**: 1.0 — every line is real downloaded web text. NO synthesis, NO LLM generation. |
| - **Preferred set blocked**: `uonlp/CulturaX` is GATED; the token has no data access (403 on stream) → fell back to c4. |
| - **Format**: plain newline corpus, one text line per sample, byte-vocab V=256 (UTF-8). clm_prod reads it via `CLM_PROD_CORPUS`. |
| - **Balance**: 4000 docs/language, round-robin interleaved (5-way balanced). |
|
|
| | field | value | |
| |---|---| |
| | total lines | 20000 (4000 x 5) | |
| | total bytes | 67,733,426 (~67.7 MB) | |
| | ko bytes | 16,679,968 | |
| | en bytes | 7,739,055 | |
| | zh bytes | 9,317,034 | |
| | ru bytes | 14,529,169 | |
| | ja bytes | 19,468,200 | |
| | max line bytes | 8192 | |
| | corpus sha256 | 7cc86c9afd5347920fb40be48d8f22b17ca2f72e04ea172f2496b13f42df3b04 | |
|
|
| ## clm_prod sanity (F-CLM-PROD-DESCENT) |
| ``` |
| corpus: clm_backbone_5lang_sample.txt (67733426 bytes, V=256) |
| windows: 8/8 (T=24 stride=8466675) |
| epoch-1 mean CE = 4.747 |
| epoch-12 mean CE = 1.49606 |
| F-CLM-PROD-DESCENT = 1 |
| PASS — real-corpus mean CE descends under int4 envelope |
| ``` |
| |
| Files: `clm_backbone_5lang_sample.txt` (corpus), `clm_backbone_5lang.corpus.kosmos` (manifest), `clm_backbone_5lang.meta.json` (provenance). |
| |
