Gahow Wang
e0d3b5150a
Two bugs caught by 8C smoke:
mb5_launch.sh
${env_bp_arg} expanded as a literal command line prefix doesn't work
when env_bp_arg is itself a variable — bash only treats VAR=val as
an env assignment if it sees the literal in the parsed command, not
after expansion. Fix: always export VLLM_MOONCAKE_BOOTSTRAP_PORT as
a literal, defaulting to 9999 when caller passed no port (consumer
mode ignores the var so the placeholder is harmless).
mb5_run.sh
replayer's actual CLI flags are --trace / --output / --endpoint /
--model, not the --*-path / --*-name variants I had. Plus dash1
has no `bc`; compute wall_clock_s via python instead.
Both fixed; 8C smoke (CONFIG=8C REPS=1 REQUEST_LIMIT=20) now runs
end-to-end in ~30 s:
- 8 vLLM kv_both instances on GPU 0-7 come up
- replayer round-robins 20 reqs across them
- MB5 instrumentation captures 8 snapshot files (one per EngineCore
PID), ranging 7-139 snapshots each = ~10 Hz throttle works
- plot_kv_pool_timeline.py renders the stacked-area + queue-depth
chart cleanly (figs/mb5_smoke/*.png)
Pipeline validated. Ready for the real PD-ratio sweep.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
125 lines
4.5 KiB
Bash
Executable File
125 lines
4.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Orchestrator for MB5: for each CONFIG × rep, bring up the stack, run a
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# trace replay against it, collect KV snapshots and replayer metrics,
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# tear down.
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#
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# Designed to be run on dash1 (or any host with cpfs mounted at
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# /home/admin/cpfs/wjh/).
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#
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# Env vars (with defaults):
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# CONFIGS : space-separated MB5 configs (default: "8C 6P+2D 4P+4D 2P+6D")
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# REPS : reps per config (default: 3)
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# TRACE : trace JSONL path
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# (default: /home/admin/cpfs/wjh/agentic-kv/traces/w600_r0.0015_st30.jsonl)
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# RUN_TAG : output root tag (default: $(date +%Y%m%d_%H%M%S))
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# REQUEST_LIMIT : optional, cap replay requests (default: none)
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set -eo pipefail
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FRESH_ROOT="/home/admin/cpfs/wjh/agentic-kv-fresh"
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VENV="${FRESH_ROOT}/.venv"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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LAUNCH="${SCRIPT_DIR}/mb5_launch.sh"
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REPLAYER_DIR="${FRESH_ROOT}/replayer"
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CONFIGS="${CONFIGS:-8C 6P+2D 4P+4D 2P+6D}"
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REPS="${REPS:-3}"
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TRACE="${TRACE:-/home/admin/cpfs/wjh/agentic-kv/traces/w600_r0.0015_st30.jsonl}"
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RUN_TAG="${RUN_TAG:-$(date +%Y%m%d_%H%M%S)}"
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MODEL_NAME="${MODEL_NAME:-/home/admin/cpfs/wjh/models/Qwen/Qwen3-Coder-30B-A3B-Instruct}"
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REQUEST_LIMIT_ARG=""
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if [ -n "${REQUEST_LIMIT:-}" ]; then
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REQUEST_LIMIT_ARG="--request-limit ${REQUEST_LIMIT}"
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fi
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OUT_ROOT="${FRESH_ROOT}/mb5_runs/${RUN_TAG}"
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mkdir -p "${OUT_ROOT}"
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echo "[mb5-run] RUN_TAG=${RUN_TAG}"
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echo "[mb5-run] OUT_ROOT=${OUT_ROOT}"
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echo "[mb5-run] CONFIGS=${CONFIGS}"
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echo "[mb5-run] REPS=${REPS}"
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echo "[mb5-run] TRACE=${TRACE}"
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run_one() {
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local config="$1" rep="$2"
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local label="${RUN_TAG}_${config}_rep${rep}"
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local rundir="${FRESH_ROOT}/mb5_runs/${label}"
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echo ""
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echo "======== ${config} rep${rep} ========"
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# Launch
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if ! CONFIG="${config}" RUN_LABEL="${RUN_TAG}_${config}_rep${rep}" \
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bash "${LAUNCH}" start > "${OUT_ROOT}/${config}_rep${rep}_launch.log" 2>&1; then
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echo "[mb5-run] LAUNCH FAILED for ${config} rep${rep}; see ${OUT_ROOT}/${config}_rep${rep}_launch.log"
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return 1
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fi
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# Extract ENDPOINTS line emitted by mb5_launch.sh
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local endpoints
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endpoints=$(grep "^ENDPOINTS=" "${OUT_ROOT}/${config}_rep${rep}_launch.log" | tail -1 | cut -d= -f2-)
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if [ -z "${endpoints}" ]; then
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echo "[mb5-run] ERROR: no ENDPOINTS in launch log"
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bash "${LAUNCH}" stop > /dev/null 2>&1 || true
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return 1
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fi
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echo "[mb5-run] endpoints: ${endpoints}"
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# Replay
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source "${VENV}/bin/activate"
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local replay_out="${rundir}/replay_metrics.jsonl"
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mkdir -p "$(dirname "${replay_out}")"
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local t0
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t0=$(date +%s.%N)
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if ! PYTHONPATH="${FRESH_ROOT}" python -m replayer \
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--endpoint "${endpoints}" \
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--trace "${TRACE}" \
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--output "${replay_out}" \
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--model "${MODEL_NAME}" \
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${REQUEST_LIMIT_ARG} \
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> "${OUT_ROOT}/${config}_rep${rep}_replay.log" 2>&1; then
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local t1
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t1=$(date +%s.%N)
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local wall=$(python -c "print(${t1} - ${t0})")
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echo "[mb5-run] REPLAY FAILED after ${wall} s; see ${OUT_ROOT}/${config}_rep${rep}_replay.log"
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bash "${LAUNCH}" stop > /dev/null 2>&1 || true
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return 1
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fi
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local t1
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t1=$(date +%s.%N)
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local wall_clock_s
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wall_clock_s=$(python -c "print(${t1} - ${t0})")
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echo "[mb5-run] replay done in ${wall_clock_s}s"
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echo "${wall_clock_s}" > "${rundir}/wall_clock_s.txt"
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# Stop launch (cleans up vllm + proxy; reverts patch on last call)
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CONFIG="${config}" RUN_LABEL="${RUN_TAG}_${config}_rep${rep}" \
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bash "${LAUNCH}" stop > "${OUT_ROOT}/${config}_rep${rep}_stop.log" 2>&1 || true
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sleep 10 # cooldown so GPUs settle before next config
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echo "[mb5-run] DONE ${config} rep${rep}"
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}
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# Quick check that the launch script and replayer are reachable
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if [ ! -f "${LAUNCH}" ]; then echo "missing ${LAUNCH}"; exit 1; fi
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if [ ! -d "${REPLAYER_DIR}" ]; then echo "missing ${REPLAYER_DIR}"; exit 1; fi
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if [ ! -f "${TRACE}" ]; then echo "missing trace ${TRACE}"; exit 1; fi
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# Iterate
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failures=0
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for config in ${CONFIGS}; do
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for ((rep=1; rep<=REPS; rep++)); do
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if ! run_one "${config}" "${rep}"; then
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failures=$((failures+1))
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fi
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done
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done
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# Final patch revert (defensive — mb5_launch.sh stop also reverts)
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python "${SCRIPT_DIR}/instrument_kv_snapshot.py" --revert --venv "${VENV}" 2>/dev/null || true
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echo ""
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echo "======== ALL CONFIGS DONE ========"
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echo "failures: ${failures}"
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echo "results under: ${FRESH_ROOT}/mb5_runs/${RUN_TAG}_*"
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echo "to plot: python plot_kv_pool_timeline.py --run-tag ${RUN_TAG}"
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