#!/usr/bin/env bash
# E4 — KVC v2 + RDMA + load-floor bonus + D→P snapshot push
#
# Identical to scripts/sweep_e3_kvc_v2_loadfloor_rdma.sh except for the
# additional --enable-d-to-p-sync flag (which causes agentic to orchestrate
# the snapshot RPCs on the reseed slow path, and stack.py to set
# SGLANG_SNAPSHOT_LINK_ENABLE=1 per worker).
#
# See docs/E4_PROTOCOL_ZH.md for hypothesis matrix.

set -euo pipefail
cd "$(dirname "$0")/.."

if [ -z "${CUDA_HOME:-}" ]; then
  echo "ERROR: CUDA_HOME not set. Source scripts/setup_env.sh first." >&2
  exit 1
fi

MODEL=${MODEL:-/mnt/models/Qwen/Qwen3-30B-A3B-Instruct-2507}
TRACE=${TRACE:-outputs/inferact_50sess.jsonl}
OUTPUT=${OUTPUT:-outputs/e4_kvc_v2_d_to_p_sync_50sess}
IB_DEVICE=${IB_DEVICE:-mlx5_60}
LOAD_FLOOR_BONUS=${LOAD_FLOOR_BONUS:-200}

if [ ! -f "$TRACE" ]; then
  echo "ERROR: trace not found at $TRACE" >&2
  echo "Run: uv run --no-sync python scripts/sample_trace_subset.py --output $TRACE --sessions 50" >&2
  exit 1
fi

mkdir -p "$OUTPUT"
LOG="$OUTPUT/sweep.log"

log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG"; }

log "=== E4: KVC v2 + RDMA + load-floor K=$LOAD_FLOOR_BONUS + D→P sync ==="
log "MODEL=$MODEL"
log "TRACE=$TRACE ($(wc -l < $TRACE) requests)"
log "OUTPUT=$OUTPUT"
log "IB_DEVICE=$IB_DEVICE"
log "MC_TRANSFER_TIMEOUT=${MC_TRANSFER_TIMEOUT:-default-30s}"

label=e4_kvc_v2_d_to_p_sync_run1
log ""
log "=== [E4] $label starting ==="

uv run --no-sync python -m agentic_pd_hybrid.cli benchmark-live \
  --trace "$TRACE" \
  --output-root "$OUTPUT" \
  --mechanism kvcache-centric \
  --policy kv-aware \
  --model-path "$MODEL" \
  --prefill-workers 1 --decode-workers 3 \
  --prefill-tp-size 1 --decode-tp-size 1 \
  --prefill-gpu-ids 0 --decode-gpu-ids 1,2,3 \
  --transfer-backend mooncake \
  --force-rdma --ib-device "$IB_DEVICE" \
  --gpu-budget 4 \
  --time-scale 1 \
  --session-sample-rate 1.0 \
  --target-duration-s 100000 \
  --concurrency-limit 32 \
  --timeout-s 1800 \
  --request-timeout-s 300 \
  --kvcache-admission-mode worker \
  --kvcache-seed-min-turn-id 1 \
  --kvcache-seed-max-inflight-decode -1 \
  --kvcache-prefill-backup-policy release-after-transfer \
  --kvcache-prefill-priority-eviction \
  --kvcache-migration-reject-threshold 3 \
  --kvcache-direct-max-uncached-tokens 8192 \
  --kvcache-load-floor-bonus "$LOAD_FLOOR_BONUS" \
  --enable-d-to-p-sync 2>&1 | tee -a "$LOG"

run_dir=$(ls -td "$OUTPUT"/kvcache-centric-*/ 2>/dev/null | head -1)
log "=== [E4] $label COMPLETED, artifacts at $run_dir ==="

if [ -f "$run_dir/request-metrics.jsonl.summary.json" ]; then
  cp "$run_dir/request-metrics.jsonl.summary.json" "$OUTPUT/${label}_summary.json"
  cp "$run_dir/request-metrics.jsonl" "$OUTPUT/${label}_metrics.jsonl"
  log "=== summary saved to $OUTPUT/${label}_summary.json ==="
fi