From f015f4959b6a74b46d430551f36d64891c5b6651 Mon Sep 17 00:00:00 2001
From: Ben <16917183+bencrts@users.noreply.github.com>
Date: Tue, 17 Dec 2024 16:27:52 +0000
Subject: [PATCH] perf(simulator): speed-up GSA computation

---
 estimator/simulator.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/estimator/simulator.py b/estimator/simulator.py
index ad1c5bd3..cea8629f 100644
--- a/estimator/simulator.py
+++ b/estimator/simulator.py
@@ -107,7 +107,8 @@ def GSA(d, n, q, beta, xi=1, tau=1, dual=False):
         log_vol = RR(log(q, 2) * (d - n - 1) + log(xi, 2) * n + log(tau, 2))
 
     delta = deltaf(beta)
-    r_log = [(d - 1 - 2 * i) * RR(log(delta, 2)) + log_vol / d for i in range(d)]
+    log_delta = RR(log(delta, 2))
+    r_log = [(d - 1 - 2 * i) * log_delta + log_vol / d for i in range(d)]
     r = [2 ** (2 * r_) for r_ in r_log]
     return r