From 658b96b201980d63da2a4a1602e9a7f616cf147c Mon Sep 17 00:00:00 2001
From: Sara Gerretsen <sara.gerretsen@student.hku.nl>
Date: Tue, 23 Sep 2025 14:25:08 +0200
Subject: [PATCH] feat: set task split to hardware_concurrency()

---
 src/simulation.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/simulation.cpp b/src/simulation.cpp
index f581901..e50de58 100644
--- a/src/simulation.cpp
+++ b/src/simulation.cpp
@@ -166,7 +166,8 @@ static void PopulateChanges() {
 	static bool first_run{ true };
 #if SIM_MULTITHREADING
 	BlockUntilTasksDone();
-	constexpr size_t split{ 4 };
+	// for some reason three tasks per thread is faster than one task per thread, i don't get it either
+	size_t const split{ std::thread::hardware_concurrency() };
 	if (first_run) {
 		first_run = false;
 		born.resize(split);