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#!/usr/bin/env bash
set -euo pipefail
# Usage:
# HF_HOME=/data/adaptai/hf_cache \
# ./scripts/vllm_launch.sh /data/models/Qwen/Qwen3-4B-Instruct-2507 qwen3_4b_ins_2507 18083 "--gpu-memory-utilization 0.90 --trust-remote-code"
MODEL_PATH=${1:?model path}
ALIAS=${2:?served alias}
PORT=${3:?port}
EXTRA_ARGS=${4:-"--gpu-memory-utilization 0.90 --trust-remote-code"}
HF_HOME=${HF_HOME:-/data/adaptai/hf_cache}
TRANSFORMERS_CACHE=${TRANSFORMERS_CACHE:-$HF_HOME}
CMD=(/usr/bin/python3 -m vllm.entrypoints.openai.api_server \
--model "$MODEL_PATH" \
--served-model-name "$ALIAS" \
--host 127.0.0.1 --port "$PORT" \
)
# shellcheck disable=SC2206
CMD+=( $EXTRA_ARGS )
echo "[vllm] starting $ALIAS on :$PORT using $MODEL_PATH"
env HF_HOME="$HF_HOME" TRANSFORMERS_CACHE="$TRANSFORMERS_CACHE" nohup "${CMD[@]}" >"/tmp/vllm-$ALIAS.log" 2>&1 &
sleep 2
pgrep -fl "openai.api_server.*--served-model-name $ALIAS" || true
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