4d5b6a77ca
- Create configuration file for the custom benchmark experiment. - Implement result parsing script to handle JSONL outputs from the benchmark. - Develop run script to orchestrate the benchmark execution, including server management and health checks. - Add server start script to launch a single vLLM service on all available GPUs.
273 lines
7.9 KiB
Bash
Executable File
273 lines
7.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Custom benchmark orchestrator for single-service vLLM TP=8 on 8x H200.
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#
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# This runs 1 vLLM service (TP=8) on all 8 GPUs (0,1,2,3,4,5,6,7).
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# bench_client.py sends requests to the single service.
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#
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# Usage:
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# bash run_bench.sh
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# SKIP_MANAGE_SERVER=1 bash run_bench.sh # skip server start/stop
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set -Eeuo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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EXPERIMENT_NAME="$(basename "$SCRIPT_DIR")"
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# shellcheck source=/dev/null
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source "${SCRIPT_DIR}/../../scripts/common/lib.sh"
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# shellcheck source=/dev/null
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source "${SCRIPT_DIR}/../../scripts/common/platform.sh"
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# shellcheck source=/dev/null
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source "${SCRIPT_DIR}/config.env"
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RUN_ID="${RUN_ID:-$(date '+%Y%m%d-%H%M%S')}"
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RESULT_ROOT="${RESULT_ROOT:-${SCRIPT_DIR}/results/${RUN_ID}}"
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RAW_DIR="${RESULT_ROOT}/raw_outputs"
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LOG_DIR="${RESULT_ROOT}/logs"
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ensure_result_root "$RESULT_ROOT"
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log_init "${LOG_DIR}/orchestrator.log"
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log "experiment=${EXPERIMENT_NAME}"
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log "run_id=${RUN_ID}"
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log "result_root=${RESULT_ROOT}"
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log "platform=${PLATFORM}"
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log "chip=${CHIP}"
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log "accelerator=${ACCELERATOR}"
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log "engine=${ENGINE}"
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log "hardware=${HARDWARE}"
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log "model=${MODEL_PATH}"
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log "services=${PORTS}"
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log "lb_strategy=${LB_STRATEGY}"
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log "server_start_script=${SERVER_START_SCRIPT}"
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# Write initial metadata for this run.
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METADATA_JSON="${RESULT_ROOT}/results.json"
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write_metadata_json \
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"$METADATA_JSON" \
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"$EXPERIMENT_NAME" \
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"$RUN_ID" \
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"$MODEL_PATH" \
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"$BACKEND" \
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"$ENGINE" \
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"$HARDWARE" \
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"$ACCELERATOR" \
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"$CHIP" \
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"experiments/${EXPERIMENT_NAME}/run_bench.sh" \
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"$VENV_SERVER" \
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"H200 1x vLLM TP=8 single-service benchmark using bench_client.py"
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# Update metadata with config.
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"${VENV_CLIENT}/bin/python" - "$METADATA_JSON" <<'PY'
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import json, sys
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path = sys.argv[1]
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with open(path, "r", encoding="utf-8") as f:
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data = json.load(f)
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data["config"] = {
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"tp": 8,
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"num_services": 1,
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"ports": "30005",
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"gpu_groups": "0,1,2,3,4,5,6,7",
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"kv_cache_dtype": "fp8",
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"block_size": 256,
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"max_num_seqs": 256,
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"client": "bench_client.py",
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"lb_strategy": "round_robin",
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"scenarios": [
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"1 512 256 20", "2 512 256 40", "4 512 256 80",
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"8 512 256 160", "16 512 256 320", "32 512 256 640",
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"64 512 256 1280", "128 512 256 2560",
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"1 2048 512 20", "8 2048 512 160", "32 2048 512 640", "128 2048 512 2560",
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"1 4096 1024 20", "8 4096 1024 160", "32 4096 1024 640", "128 4096 1024 2560"
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]
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}
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with open(path, "w", encoding="utf-8") as f:
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json.dump(data, f, indent=2, ensure_ascii=False)
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PY
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# ---------------------------------------------------------------------------
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# Server helpers (single-service)
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# ---------------------------------------------------------------------------
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is_server_healthy() {
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local port="$1"
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curl --fail --silent --show-error --max-time 5 "http://127.0.0.1:${port}/health" >/dev/null 2>&1
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}
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are_all_services_healthy() {
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local ports="$1"
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IFS=',' read -ra PORT_LIST <<< "$ports"
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for p in "${PORT_LIST[@]}"; do
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if ! is_server_healthy "$p"; then
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return 1
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fi
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done
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return 0
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}
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stop_all_servers() {
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log "stopping all vllm services"
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# Kill by PID files first.
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for pid_file in "${SCRIPT_DIR}"/server_port*.pid; do
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[[ -f "$pid_file" ]] || continue
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local pid
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pid="$(cat "$pid_file")"
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if kill -0 "$pid" 2>/dev/null; then
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log "killing pid=${pid}"
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kill "$pid" 2>/dev/null || true
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sleep 2
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kill -9 "$pid" 2>/dev/null || true
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fi
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rm -f "$pid_file"
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done
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# Fallback: kill any remaining vllm processes for this model.
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pkill -9 -f "vllm serve.*${MODEL_NAME}" 2>/dev/null || true
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sleep 2
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}
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start_all_servers() {
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log "starting all vllm services with ${SERVER_START_SCRIPT}"
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if [[ ! -x "${SERVER_START_SCRIPT}" ]]; then
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log "error: start script not found or not executable: ${SERVER_START_SCRIPT}"
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exit 1
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fi
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bash "${SERVER_START_SCRIPT}" >> "${LOG_DIR}/server.outer.log" 2>&1
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if ! are_all_services_healthy "$PORTS"; then
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log "error: not all vllm services became healthy"
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exit 1
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fi
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log "all vllm services are healthy"
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}
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# ---------------------------------------------------------------------------
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# Pre-benchmark health check with detailed reporting
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# ---------------------------------------------------------------------------
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check_services_detailed() {
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local ports="$1"
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IFS=',' read -ra PORT_LIST <<< "$ports"
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local healthy_count=0
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local unhealthy_ports=""
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for p in "${PORT_LIST[@]}"; do
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if is_server_healthy "$p"; then
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((healthy_count++))
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else
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unhealthy_ports="${unhealthy_ports}${p} "
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fi
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done
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echo "$healthy_count"
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if [[ -n "$unhealthy_ports" ]]; then
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echo "unhealthy: ${unhealthy_ports}" >&2
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fi
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}
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wait_for_all_services() {
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local ports="$1"
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local max_wait="${2:-240}"
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local interval="${3:-5}"
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local elapsed=0
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while (( elapsed < max_wait )); do
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local healthy_count
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healthy_count="$(check_services_detailed "$ports" | head -1)"
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IFS=',' read -ra PORT_LIST <<< "$ports"
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if (( healthy_count == ${#PORT_LIST[@]} )); then
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return 0
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fi
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log "waiting for services... ${healthy_count}/${#PORT_LIST[@]} healthy after ${elapsed}s"
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sleep "$interval"
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((elapsed += interval))
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done
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return 1
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}
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# ---------------------------------------------------------------------------
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# Mid-benchmark health check (called between scenarios)
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# ---------------------------------------------------------------------------
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check_and_report_services() {
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local ports="$1"
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IFS=',' read -ra PORT_LIST <<< "$ports"
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local healthy=()
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local unhealthy=()
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for p in "${PORT_LIST[@]}"; do
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if is_server_healthy "$p"; then
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healthy+=("$p")
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else
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unhealthy+=("$p")
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fi
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done
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log "service health check: healthy=[${healthy[*]}] unhealthy=[${unhealthy[*]}]"
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if [[ ${#unhealthy[@]} -gt 0 ]]; then
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log "WARNING: ${#unhealthy[@]} service(s) unhealthy: ${unhealthy[*]}"
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fi
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return ${#unhealthy[@]}
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}
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on_exit() {
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local code=$?
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log "orchestrator exiting with code=${code}"
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if [[ -z "${SKIP_MANAGE_SERVER:-}" ]]; then
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stop_all_servers
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fi
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exit "$code"
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}
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trap on_exit EXIT
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if [[ -n "${SKIP_MANAGE_SERVER:-}" ]]; then
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log "SKIP_MANAGE_SERVER is set, assuming services are already running"
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if ! wait_for_all_services "$PORTS"; then
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log "error: not all healthy services found on ports ${PORTS}"
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exit 1
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fi
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else
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stop_all_servers
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start_all_servers
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fi
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log "===== BENCHMARK START ====="
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for scenario in "${SCENARIOS[@]}"; do
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read -r concurrency input_len output_len num_prompts <<< "$scenario"
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# Fallback for legacy 3-field scenarios.
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if [[ -z "${num_prompts:-}" ]]; then
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num_prompts="$NUM_PROMPTS"
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fi
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output_file="${RAW_DIR}/vllm_$(date '+%m%d')_${concurrency}_${input_len}_${output_len}.jsonl"
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detail_log="${LOG_DIR}/vllm_c${concurrency}_i${input_len}_o${output_len}.log"
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log "running scenario: concurrency=${concurrency} input=${input_len} output=${output_len} num_prompts=${num_prompts}"
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"${VENV_CLIENT}/bin/python" "${SCRIPT_DIR}/bench_client.py" \
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--host 127.0.0.1 \
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--port "$PORT" \
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--model "$SERVED_MODEL_NAME" \
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--concurrency "$concurrency" \
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--input-len "$input_len" \
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--output-len "$output_len" \
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--num-prompts "$num_prompts" \
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--output-file "$output_file" \
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> "$detail_log" 2>&1 || {
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log "ERROR: scenario c=${concurrency} i=${input_len} o=${output_len} failed; see ${detail_log}"
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# After failure, check service health before continuing.
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check_and_report_services "$PORTS"
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continue
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}
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log "finished scenario: output=${output_file}"
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# Between scenarios, report service health so we can spot degradation early.
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check_and_report_services "$PORTS" || true
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done
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log "===== BENCHMARK DONE ====="
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log "parsing results"
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"${VENV_CLIENT}/bin/python" "${SCRIPT_DIR}/parse_results.py" "$RESULT_ROOT" >> "${LOG_DIR}/parse.log" 2>&1 || {
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log "WARNING: parser failed; see ${LOG_DIR}/parse.log"
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}
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log "all results saved to ${RESULT_ROOT}"
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