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Update speedrun.sh

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Sachin Agrawal 2025-11-03 12:01:18 +01:00 committed by GitHub
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1 changed files with 22 additions and 14 deletions
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speedrun.sh
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@ -15,6 +15,9 @@ export OMP_NUM_THREADS=1
export NANOCHAT_BASE_DIR="$HOME/.cache/nanochat"
mkdir -p $NANOCHAT_BASE_DIR
# Number of processes per node for distributed training
NPROC_PER_NODE=4
# -----------------------------------------------------------------------------
# Python venv setup with uv
@ -23,7 +26,7 @@ command -v uv &> /dev/null || curl -LsSf https://astral.sh/uv/install.sh | sh
# create a .venv local virtual environment (if it doesn't exist)
[ -d ".venv" ] || uv venv
# install the repo dependencies
uv sync --extra gpu
uv sync
# activate venv so that `python` uses the project's venv instead of system python
source .venv/bin/activate
@ -73,6 +76,15 @@ python -m scripts.tok_eval
# -----------------------------------------------------------------------------
# Base model (pretraining)
# Download the eval_bundle from s3 to evaluate CORE metric during training (~162MB)
EVAL_BUNDLE_URL=https://karpathy-public.s3.us-west-2.amazonaws.com/eval_bundle.zip
if [ ! -d "$NANOCHAT_BASE_DIR/eval_bundle" ]; then
curl -L -o eval_bundle.zip $EVAL_BUNDLE_URL
unzip -q eval_bundle.zip
rm eval_bundle.zip
mv eval_bundle $NANOCHAT_BASE_DIR
fi
# The d20 model is 561M parameters.
# Chinchilla says #tokens = 20X #params, so we need 561e6 * 20 = 11.2B tokens.
# Assume our tokenizer is 4.8 chars/token, this is 11.2B * 4.8 ~= 54B chars.
@ -83,29 +95,25 @@ echo "Waiting for dataset download to complete..."
wait $DATASET_DOWNLOAD_PID
# pretrain the d20 model
torchrun --standalone --nproc_per_node=8 -m scripts.base_train -- --depth=20 --run=$WANDB_RUN
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.base_train -- --depth=20 --run=$WANDB_RUN
# evaluate the model on a larger chunk of train/val data and draw some samples
torchrun --standalone --nproc_per_node=8 -m scripts.base_loss
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.base_loss
# evaluate the model on CORE tasks
torchrun --standalone --nproc_per_node=8 -m scripts.base_eval
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.base_eval
# -----------------------------------------------------------------------------
# Midtraining (teach the model conversation special tokens, tool use, multiple choice)
# download 2.3MB of synthetic identity conversations to impart a personality to nanochat
# see dev/gen_sft_data.py for details on how this data was prepared and to get a sense of how you can easily tune it
curl -L -o $NANOCHAT_BASE_DIR/identity_conversations.jsonl https://karpathy-public.s3.us-west-2.amazonaws.com/identity_conversations.jsonl
# run midtraining and eval the model
torchrun --standalone --nproc_per_node=8 -m scripts.mid_train -- --run=$WANDB_RUN
torchrun --standalone --nproc_per_node=8 -m scripts.chat_eval -- -i mid
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.mid_train -- --run=$WANDB_RUN
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.chat_eval -- -i mid
# -----------------------------------------------------------------------------
# Supervised Finetuning (domain adaptation to each sequence all by itself per row)
# train sft and re-eval right away (should see a small bump)
torchrun --standalone --nproc_per_node=8 -m scripts.chat_sft -- --run=$WANDB_RUN
torchrun --standalone --nproc_per_node=8 -m scripts.chat_eval -- -i sft
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.chat_sft -- --run=$WANDB_RUN
torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.chat_eval -- -i sft
# chat with the model over CLI! Leave out the -p to chat interactively
# python -m scripts.chat_cli -p "Why is the sky blue?"
@ -118,9 +126,9 @@ torchrun --standalone --nproc_per_node=8 -m scripts.chat_eval -- -i sft
# (optional)
# run reinforcement learning
# torchrun --standalone --nproc_per_node=8 -m scripts.chat_rl -- --run=$WANDB_RUN
# torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.chat_rl -- --run=$WANDB_RUN
# eval the RL model only on GSM8K
# torchrun --standalone --nproc_per_node=8 -m scripts.chat_eval -- -i rl -a GSM8K
# torchrun --standalone --nproc_per_node=$NPROC_PER_NODE -m scripts.chat_eval -- -i rl -a GSM8K
# -----------------------------------------------------------------------------
# Generate the full report by putting together all the sections