Fam Zheng
f487ffee80
smoke / nanochat-smoke (push) Successful in 25s
When the secret is present, base_train --run=smoke-$run_number gets logged to wandb (project=nanochat). Without the secret it falls back to dummy / DummyWandb, so local runs stay offline.
73 lines
2.4 KiB
Bash
Executable File
73 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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# End-to-end smoke for upstream nanochat: dataset → tokenizer → tiny base_train.
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# Idempotent: caches venv, uv-cache, and dataset shards under /data/nanochat-smoke/.
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# Targets ailab (CN, RTX 5090). Uses CN mirrors for PyPI / pytorch wheels / HuggingFace.
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set -euo pipefail
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export PATH="$HOME/.local/bin:$PATH"
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CACHE_ROOT=${CACHE_ROOT:-/data/nanochat-smoke}
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NANOCHAT_DIR=$CACHE_ROOT/nanochat
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export NANOCHAT_BASE_DIR=$CACHE_ROOT/cache
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export UV_CACHE_DIR=$CACHE_ROOT/uv-cache
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export UV_DEFAULT_INDEX=${UV_DEFAULT_INDEX:-https://mirrors.aliyun.com/pypi/simple/}
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export UV_INDEX_STRATEGY=unsafe-best-match
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export HF_ENDPOINT=${HF_ENDPOINT:-https://hf-mirror.com}
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export OMP_NUM_THREADS=1
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mkdir -p "$CACHE_ROOT" "$NANOCHAT_BASE_DIR"
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# wandb: real run if WANDB_API_KEY is set, otherwise fall back to dummy (DummyWandb).
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if [ -n "${WANDB_API_KEY:-}" ]; then
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RUN_TAG=${CI_RUN_TAG:-smoke-$(date +%Y%m%d-%H%M%S)}
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else
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RUN_TAG=dummy
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fi
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if [ ! -d "$NANOCHAT_DIR" ]; then
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echo "Cloning nanochat into $NANOCHAT_DIR"
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git clone https://github.com/karpathy/nanochat.git "$NANOCHAT_DIR" \
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|| git clone https://ghfast.top/https://github.com/karpathy/nanochat.git "$NANOCHAT_DIR"
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fi
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cd "$NANOCHAT_DIR"
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# CN mirror patches — idempotent: sed only matches the upstream URLs.
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sed -i \
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-e "s|https://download.pytorch.org/whl/cu128|https://mirror.sjtu.edu.cn/pytorch-wheels/cu128|g" \
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-e "s|https://download.pytorch.org/whl/cpu|https://mirror.sjtu.edu.cn/pytorch-wheels/cpu|g" \
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pyproject.toml uv.lock
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sed -i \
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-e "s|https://huggingface.co/datasets/karpathy/climbmix-400b-shuffle|https://hf-mirror.com/datasets/karpathy/climbmix-400b-shuffle|" \
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nanochat/dataset.py
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[ -d .venv ] || uv venv
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uv sync --extra gpu --index-strategy unsafe-best-match
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source .venv/bin/activate
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echo "=== [1/4] download 1 climbmix shard ==="
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time python -m nanochat.dataset -n 1
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echo "=== [2/4] train tokenizer (50M chars) ==="
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time python -m scripts.tok_train --max-chars=50000000
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echo "=== [3/4] tok_eval ==="
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time python -m scripts.tok_eval
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echo "=== [4/4] base_train d=6 50 iters ==="
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time python -m scripts.base_train \
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--depth=6 \
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--head-dim=64 \
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--window-pattern=L \
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--max-seq-len=512 \
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--device-batch-size=8 \
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--total-batch-size=4096 \
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--eval-every=25 \
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--eval-tokens=131072 \
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--core-metric-every=-1 \
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--sample-every=25 \
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--num-iterations=50 \
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--run="$RUN_TAG"
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echo "=== smoke done ==="
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