#!/usr/bin/env bash
set -euo pipefail
root=$(cd -- "$(dirname -- "$0")" && pwd)
tier=v4
for feature in avx512f avx512bw avx512cd avx512dq avx512vl; do
    if ! grep -qm1 -w "$feature" /proc/cpuinfo; then tier=v3; break; fi
done
exec "$root/$tier/longhorn" "$@"
