Optimized install script

Author: sebastianpineda

install_optimized.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Optimized (non-portable) build for local x86_64 Linux hosts.
+# Uses native CPU tuning, IPO/LTO, and optional OpenMP runtime override.
+# Usage: ./install_optimized.sh [pip args...]
+
+here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$here"
+
+os="$(uname -s)"
+arch="$(uname -m)"
+
+if [[ "$os" == "Darwin" ]]; then
+    echo "[INFO] macOS detected; the default portable build is already optimized for Apple targets."
+    echo "[INFO] Run 'pip install .' directly or set CMAKE_ARGS manually if you want to experiment."
+    python -m pip install "$@"
+    exit 0
+fi
+
+if [[ "$arch" != "x86_64" && "$arch" != "amd64" ]]; then
+    echo "[WARN] Non-x86_64 architecture ($arch) detected; skipping native flags. Running portable build."
+    python -m pip install "$@"
+    exit 0
+fi
+
+native_cxxflags="-march=native -mtune=native -O3 -ffp-contract=fast -funroll-loops -fomit-frame-pointer -fno-strict-aliasing"
+runtime="${ACTIONET_OPENMP_RUNTIME:-AUTO}"  # set to INTEL/GNU/LLVM to force, otherwise auto
+
+cmake_args="-DCMAKE_CXX_FLAGS='${native_cxxflags}' -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON"
+if [[ "$runtime" != "AUTO" ]]; then
+    cmake_args+=" -DLIBACTIONET_OPENMP_RUNTIME=${runtime}"
+fi
+
+export CMAKE_ARGS="${CMAKE_ARGS:-} ${cmake_args}"
+
+echo "[INFO] Using CMAKE_ARGS=${CMAKE_ARGS}"
+echo "[INFO] Invoking pip install with optimized flags..."
+python -m pip install "$@"