#!/bin/bash
#SBATCH --job-name=vl
#SBATCH --partition=gpu-large
#SBATCH --qos=batch-long
#SBATCH --gres=gpu:h200:1
#SBATCH --cpus-per-task=8
#SBATCH --mem=180G
#SBATCH --time=06:00:00
#SBATCH --output=/weka/s225250685/mats-tist/slurm_logs/eval_ensemble_7b_%j.out

set -u
cd /weka/s225250685/mats-tist
set -a; source /weka/s225250685/mats-tist/.env; set +a
export HF_HOME=/weka/s225250685/Huggingface HF_HUB_CACHE=/weka/s225250685/Huggingface/hub
export PYTHONNOUSERSITE=1 NO_PROXY=localhost,127.0.0.1 no_proxy=localhost,127.0.0.1
export PYTHONPATH=/weka/s225250685/mats-tist TOKENIZERS_PARALLELISM=false
export DB_EXEC_API_DISABLE=1

PY=/weka/s225250685/conda-envs/handbook/bin/python
VLLM=/weka/s225250685/conda-envs/handbook/bin/vllm
SELECTOR_CKPT=alignment-handbook/output/selector-qwen7b-v6-pointwise-rich
DEV_FILE=eval_results/paper_SFT_VF_passAt8_bird_dev.jsonl

LOG=/weka/s225250685/mats-tist/slurm_logs/eval_ensemble_7b_${SLURM_JOB_ID}.log
kill_vllm() { pkill -9 -f "vllm serve" 2>/dev/null || true; sleep 5; }
trap kill_vllm EXIT
wait_url() { for i in {1..360}; do curl --noproxy '*' -fs "$1" >/dev/null 2>&1 && return 0; sleep 5; done; return 1; }

echo "[$(date)] Serving 7B selector..." | tee -a "$LOG"
$VLLM serve "$SELECTOR_CKPT" \
    --served-model-name selector --port 8103 \
    --dtype bfloat16 --gpu-memory-utilization 0.85 \
    --max-model-len 4096 --enforce-eager --disable-log-requests \
    > "$LOG.serve" 2>&1 &
if ! wait_url http://localhost:8103/v1/models; then
    echo "selector failed to come up" | tee -a "$LOG"; exit 1
fi
echo "[$(date)] selector ready" | tee -a "$LOG"

for CONF in "1.0 0.3 0.5 0.3" "1.0 0.5 0.5 0.3" "1.0 1.0 0.5 0.3" "1.0 2.0 0.5 0.3"; do
    read A B G D <<<"$CONF"
    TAG=$(echo $A$B$G$D | tr -d ' .')
    echo "[$(date)] Ensemble eval α=$A β=$B γ=$G δ=$D" | tee -a "$LOG"
    $PY scripts/compute_bestofn_ensemble_v6.py \
        "$DEV_FILE" v6e7b_$TAG \
        --selector_host http://localhost:8103 --model_name selector --threads 16 \
        --alpha $A --beta $B --gamma $G --delta $D \
        --out_dir eval_results 2>&1 | tee -a "$LOG.eval_$TAG"
done

echo "[$(date)] DONE" | tee -a "$LOG"
kill_vllm