remove 1 NTT from galois_auto AND add NTT benches

benches/ntt.rs

@@ -0,0 +1,36 @@
+use bin_rs::{Ntt, NttBackendU64, NttInit};
+use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion};
+use itertools::Itertools;
+use rand::{thread_rng, Rng};
+use rand_distr::Uniform;
+
+fn benchmark(c: &mut Criterion) {
+    let mut group = c.benchmark_group("ntt");
+    // 55
+    for prime in [36028797017456641] {
+        for ring_size in [1 << 11, 1 << 15] {
+            let ntt = NttBackendU64::new(&prime, ring_size);
+            let mut rng = thread_rng();
+
+            let a = rng
+                .sample_iter(Uniform::new(0, prime))
+                .take(ring_size)
+                .collect_vec();
+            group.bench_function(
+                BenchmarkId::new("forward", format!("q={prime}/{ring_size}")),
+                |b| {
+                    b.iter_batched_ref(
+                        || a.clone(),
+                        |mut a| black_box(ntt.forward(&mut a)),
+                        criterion::BatchSize::PerIteration,
+                    )
+                },
+            );
+        }
+    }
+
+    group.finish();
+}
+
+criterion_group!(ntt, benchmark);
+criterion_main!(ntt);