Add intel simd [skip ci]

Author: Raimo33

benchmark_analysis.ipynb

@@ -0,0 +1,71 @@
+#!/bin/bash
+set -e
+
+options=("OFF" "ON")
+BENCH_ITERS=${SECP256K1_BENCH_ITERS:-20000}
+
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+echo 1 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo > /dev/null
+sudo cpupower -c 0 frequency-set -g performance > /dev/null
+command -v taskset > /dev/null && TASKSET_CMD="taskset -c 0"
+
+run_bench() {
+  local dir=$1 bin=$2 log=$3
+  (
+    cd "$dir"
+    $TASKSET_CMD env SECP256K1_BENCH_ITERS=$BENCH_ITERS nice -n 0 ./bin/$bin >> "../../$log" 2>&1
+    echo "" >> "../../$log"
+  )
+}
+
+bench_config() {
+  local config="$1"
+  local dir="build/$config"
+  local log="${config}_bench.csv"
+
+  if [[ ! -d "$dir" ]]; then
+    echo -e "${RED}✖ $config${NC} (no dir)"
+    return 1
+  fi
+  
+  {
+    echo "Benchmark results for $config"
+    echo "Generated on $(date)"
+    echo "Iterations: $BENCH_ITERS"
+    echo ""
+  } > "$log"
+
+  for bin in bench bench_ecmult bench_internal; do
+    if run_bench "$dir" "$bin" "$log"; then
+      echo -e "  ${GREEN}✔ $bin${NC}"
+    else
+      echo -e "  ${RED}✖ $bin${NC}"
+      return 1
+    fi
+  done
+
+  echo -e "${GREEN}✔ $config${NC} (log: $log)"
+}
+
+for sse2 in "${options[@]}"; do
+  for avx2 in "${options[@]}"; do
+    config="INT128"
+    [[ $sse2 == "ON" ]] && config+="_SSE2"
+    [[ $avx2 == "ON" ]] && config+="_AVX2"
+
+    bench_config "$config"
+  done
+done
+
+for sse2 in "${options[@]}"; do
+  config="INT64"
+  [[ $sse2 == "ON" ]] && config+="_SSE2"
+
+  bench_config "$config"
+done
+
+echo -e "\n${YELLOW}All benchmarks successful. Logs in project root${NC}"

simd-bench.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+set -e
+
+mkdir -p build
+
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+build() {
+  local config="$1"
+  local flags="-O3 -msse2 -mavx2 $2"
+  local dir="build/$config"
+  
+  mkdir -p "$dir"
+  
+  if (cd "$dir" && cmake ../.. -G Ninja -DSECP256K1_APPEND_CFLAGS="$flags" > /dev/null 2>&1 && ninja > /dev/null 2>&1); then
+    echo -e "${GREEN}✔ $config${NC}"
+  else
+    echo -e "${RED}✖ $config failed${NC}"
+    return 1
+  fi
+}
+
+for sse2 in OFF ON; do
+  for avx2 in OFF ON; do
+    config="INT128"
+    flags=""
+
+    if [[ $sse2 == "ON" ]]; then
+      config+="_SSE2"
+    else
+      flags+=" -U__SSE2__"
+    fi
+
+    if [[ $avx2 == "ON" ]]; then
+      config+="_AVX2" 
+    else
+      flags+=" -U__AVX2__"
+    fi
+    
+    build "$config" "$flags"
+  done
+done
+
+for sse2 in OFF ON; do
+  config="INT64"
+  flags="-DUSE_FORCE_WIDEMUL_INT64=1"
+  
+  if [[ $sse2 == "ON" ]]; then
+    config+="_SSE2"
+  else
+    flags+=" -U__SSE2__"
+  fi
+  
+  build "$config" "$flags"
+done
+
+echo -e "\n${YELLOW}All builds done. Logs in project root${NC}"

simd-build.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+set -e
+
+options=("OFF" "ON")
+
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+test_config() {
+  local config="$1"
+  local dir="build/$config"
+  local log="${config}_test.log"
+
+  if [[ ! -d "$dir" ]]; then
+    echo -e "${RED}✖ $config${NC} (no dir)"
+    return 1
+  fi
+
+  if (cd "$dir" && ctest --output-on-failure -j"$(nproc)" &> "../../$log"); then
+    echo -e "${GREEN}✔ $config${NC} (log: $log)"
+  else
+    echo -e "${RED}✖ $config${NC} (log: $log)"
+    return 1
+  fi
+}
+
+for sse2 in "${options[@]}"; do
+  for avx2 in "${options[@]}"; do
+    config="INT128"
+    [[ $sse2 == "ON" ]] && config+="_SSE2"
+    [[ $avx2 == "ON" ]] && config+="_AVX2"
+
+    test_config "$config"
+  done
+done
+
+for sse2 in "${options[@]}"; do
+  config="INT64"
+  [[ $sse2 == "ON" ]] && config+="_SSE2"
+
+  test_config "$config"
+done
+
+echo -e "\n${YELLOW}All tests passed. Logs in project root${NC}"