Reaisonable size

.secret_cpp/bench_determinant.cpp

@@ -0,0 +1,22 @@
+#include "qpx.hpp"
+#include <determinant.hpp>
+#include <benchmark/benchmark.h>
+
+static void ComputePhaseAndApplyExcitation(benchmark::State& state) {
+
+  const auto n_orbital = 1024;
+  const auto n_elec = 129;
+
+  auto alpha = spin_det_t(n_orbital);
+  auto beta = spin_det_t(n_elec);
+  alpha.set(0, n_elec, 1);
+
+  det_t s{alpha, beta};
+  for(auto _ : state) {
+      	 auto d = apply_single_spin_excitation(s, 0, 0, n_elec+1);
+	 benchmark::DoNotOptimize(d);
+  }
+}
+
+BENCHMARK(ComputePhaseAndApplyExcitation);
+BENCHMARK_MAIN();