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surrogate_autotune: improve ECP optimization and benchmarking
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‎bench_ecp_all9.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
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cd "$ROOT_DIR"
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OPENROAD_EXE="${OPENROAD_EXE:-$ROOT_DIR/tools/OpenROAD/build/bin/openroad}"
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NUM_CORES="${NUM_CORES:-4}"
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VALIDATE_N="${VALIDATE_N:-18}"
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VALIDATE_JOBS="${VALIDATE_JOBS:-18}"
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TIME_BUDGET_S="${TIME_BUDGET_S:-3000}"
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SURROGATE_SAMPLES="${SURROGATE_SAMPLES:-100000000000}"
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SURROGATE_TOP_N="${SURROGATE_TOP_N:-200}"
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SURROGATE_GLOBAL_TOP_N="${SURROGATE_GLOBAL_TOP_N:-200}"
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DATE_TAG="${DATE_TAG:-20260211}"
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SEED="${SEED:-1}"
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need_file() {
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local path="$1"
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if [[ ! -f "$path" ]]; then
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echo "Missing required file: $path" >&2
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exit 1
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fi
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}
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surrogate_done() {
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local summary="$1"
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python3 - <<'PY' "$summary"
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import json, sys
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from pathlib import Path
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p = Path(sys.argv[1])
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if not p.exists():
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raise SystemExit(1)
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try:
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obj = json.loads(p.read_text())
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except Exception:
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raise SystemExit(1)
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val = obj.get("validation") if isinstance(obj, dict) else None
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enabled = bool(val.get("enabled")) if isinstance(val, dict) else False
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raise SystemExit(0 if enabled else 1)
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PY
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}
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random_done() {
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local summary="$1"
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[[ -f "$summary" ]]
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}
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wait_for_idle() {
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while pgrep -f "flow/scripts/surrogate_autotune.py" >/dev/null 2>&1; do
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echo "[bench] Waiting: surrogate_autotune.py already running..."
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sleep 60
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done
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while pgrep -f "flow/scripts/random_baseline.py" >/dev/null 2>&1; do
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echo "[bench] Waiting: random_baseline.py already running..."
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sleep 60
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done
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}
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run_surrogate_ecp() {
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local platform="$1"
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local design="$2"
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local variant="$3"
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local design_config="designs/${platform}/${design}/config.mk"
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local space_file="designs/${platform}/${design}/surrogate_space.json"
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local summary="flow/results/${platform}/${design}/${variant}/surrogate_autotune.json"
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need_file "flow/${design_config}"
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need_file "flow/${space_file}"
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if surrogate_done "$summary"; then
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echo "[bench] surrogate done: ${platform}/${design} (${variant})"
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return 0
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fi
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echo "[bench] surrogate start: ${platform}/${design} (${variant})"
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wait_for_idle
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OPENROAD_EXE="$OPENROAD_EXE" make -C flow surrogate_autotune \
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"DESIGN_CONFIG=${design_config}" \
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"FLOW_VARIANT=${variant}" \
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"NUM_CORES=${NUM_CORES}" \
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"SURROGATE_SPACE_FILE=${space_file}" \
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"SURROGATE_OBJECTIVE=effective_clock_period" \
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"SURROGATE_RESUME=1" \
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"SURROGATE_TIME_BUDGET_S=${TIME_BUDGET_S}" \
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"SURROGATE_SAMPLES=${SURROGATE_SAMPLES}" \
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"SURROGATE_TOP_N=${SURROGATE_TOP_N}" \
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"SURROGATE_GLOBAL_TOP_N=${SURROGATE_GLOBAL_TOP_N}" \
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"SURROGATE_VALIDATE=1" \
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"SURROGATE_VALIDATE_N=${VALIDATE_N}" \
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"SURROGATE_VALIDATE_JOBS=${VALIDATE_JOBS}" \
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"SURROGATE_VALIDATE_MAKE_TARGET=report" \
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"SURROGATE_ROUTE_VALIDATE_N=${VALIDATE_N}" \
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"SURROGATE_ROUTE_VALIDATE_JOBS=${VALIDATE_JOBS}" \
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"SURROGATE_ROUTE_INJECT_RANDOM_N=0"
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}
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run_random_ecp() {
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local platform="$1"
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local design="$2"
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local synth_from_variant="$3"
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local platform_tag="$platform"
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if [[ "$platform" == "nangate45" ]]; then
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platform_tag="ng45"
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fi
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local prefix="rand18_${platform_tag}_${design}_${DATE_TAG}"
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local summary="flow/results/${platform}/${design}/${prefix}_ecp/random_baseline.json"
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need_file "flow/designs/${platform}/${design}/config.mk"
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if random_done "$summary"; then
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echo "[bench] random done: ${platform}/${design} (${prefix}_ecp)"
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return 0
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fi
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echo "[bench] random start: ${platform}/${design} (${prefix}_ecp)"
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wait_for_idle
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OPENROAD_EXE="$OPENROAD_EXE" python3 flow/scripts/random_baseline.py \
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--platforms "$platform" \
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--designs "$design" \
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--objectives ecp \
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--validate-n "$VALIDATE_N" \
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--validate-jobs "$VALIDATE_JOBS" \
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--num-cores "$NUM_CORES" \
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--make-target report \
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--clock-strategy space \
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--clock-sweep-n 9 \
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--synth-from-variant "$synth_from_variant" \
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--compare-to-variant-ecp "$synth_from_variant" \
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--variant-prefix "$prefix" \
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--resume \
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--seed "$SEED"
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}
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variant_for() {
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local platform="$1"
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local design="$2"
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if [[ "$design" == "ibex" && ( "$platform" == "asap7" || "$platform" == "nangate45" ) ]]; then
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echo "ecpwall_modelv2_ibex_t3000s"
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else
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echo "ecpwall_modelv2_t3000s_ecp_${platform}_${design}"
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fi
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}
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main() {
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need_file "$OPENROAD_EXE"
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local platforms=(asap7 nangate45 sky130hd)
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local designs=(aes ibex jpeg)
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for platform in "${platforms[@]}"; do
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for design in "${designs[@]}"; do
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local variant
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variant="$(variant_for "$platform" "$design")"
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run_surrogate_ecp "$platform" "$design" "$variant"
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run_random_ecp "$platform" "$design" "$variant"
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done
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done
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echo "[bench] done"
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}
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main "$@"

‎flow/designs/asap7/ibex/surrogate_space.json‎

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{
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"clock_period": {
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"type": "float",
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"minmax": [300, 600],
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"step": 0
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},
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"core_utilization": {
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"type": "int",
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"minmax": [20, 99],
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"step": 1
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},
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"core_aspect_ratio": {
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"type": "float",
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"minmax": [0.9, 1.1],
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"step": 0
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},
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"tns_end_percent": {
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"type": "int",
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"minmax": [0, 100],
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"step": 1
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},
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"global_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"detail_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"enable_dpo": {
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"type": "binary",
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"minmax": [0, 1],
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"step": 1
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},
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"pin_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"above_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"density_margin_addon": {
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"type": "float",
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"minmax": [0.0, 0.99],
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"step": 0
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},
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"cts_cluster_size": {
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"type": "int",
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"minmax": [10, 40],
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"step": 1
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},
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"cts_cluster_diameter": {
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"type": "int",
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"minmax": [50, 200],
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"step": 1
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}
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}

‎flow/designs/asap7/jpeg/surrogate_space.json‎

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{
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"clock_period": {
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"type": "float",
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"minmax": [300, 600],
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"step": 0
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},
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"core_utilization": {
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"type": "int",
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"minmax": [20, 99],
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"step": 1
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},
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"core_aspect_ratio": {
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"type": "float",
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"minmax": [0.9, 1.1],
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"step": 0
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},
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"tns_end_percent": {
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"type": "int",
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"minmax": [0, 100],
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"step": 1
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},
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"global_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"detail_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"enable_dpo": {
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"type": "binary",
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"minmax": [0, 1],
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"step": 1
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},
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"pin_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"above_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"density_margin_addon": {
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"type": "float",
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"minmax": [0.0, 0.99],
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"step": 0
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},
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"cts_cluster_size": {
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"type": "int",
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"minmax": [10, 40],
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"step": 1
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},
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"cts_cluster_diameter": {
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"type": "int",
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"minmax": [50, 200],
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"step": 1
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}
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}

‎flow/designs/nangate45/ibex/surrogate_space.json‎

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{
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"clock_period": {
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"type": "float",
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"minmax": [0.40, 2.50],
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"step": 0
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},
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"core_utilization": {
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"type": "int",
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"minmax": [20, 99],
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"step": 1
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},
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"core_aspect_ratio": {
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"type": "float",
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"minmax": [0.9, 1.1],
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"step": 0
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},
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"tns_end_percent": {
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"type": "int",
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"minmax": [0, 100],
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"step": 1
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},
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"global_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"detail_padding": {
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"type": "int",
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"minmax": [0, 3],
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"step": 1
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},
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"enable_dpo": {
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"type": "binary",
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"minmax": [0, 1],
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"step": 1
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},
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"pin_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"above_layer_adjust": {
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"type": "float",
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"minmax": [0.2, 0.7],
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"step": 0
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},
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"density_margin_addon": {
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"type": "float",
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"minmax": [0.0, 0.99],
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"step": 0
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},
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"cts_cluster_size": {
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"type": "int",
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"minmax": [10, 40],
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"step": 1
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},
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"cts_cluster_diameter": {
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"type": "int",
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"minmax": [50, 200],
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"step": 1
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}
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}
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