From 0349ac3b135081e15feac0cc2af4ae084b05dbd4 Mon Sep 17 00:00:00 2001
From: Andrea Iob <andrea_iob@hotmail.com>
Date: Wed, 23 Sep 2020 21:42:06 +0200
Subject: [PATCH] voloctree: move vector declarations outside loop to reduce
 reallocations

---
 src/voloctree/voloctree.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/voloctree/voloctree.cpp b/src/voloctree/voloctree.cpp
index 04f053f64b..c52517cbd9 100644
--- a/src/voloctree/voloctree.cpp
+++ b/src/voloctree/voloctree.cpp
@@ -995,11 +995,14 @@ std::vector<adaption::Info> VolOctree::sync(bool trackChanges)
 	}
 
 	uint32_t treeId = 0;
+	std::vector<uint32_t> mapper_octantMap;
+	std::vector<bool> mapper_ghostFlag;
+	std::vector<int> mapper_octantRank;
 	while (treeId < (uint32_t) nOctants) {
 		// Octant mapping
-		std::vector<uint32_t> mapper_octantMap;
-		std::vector<bool> mapper_ghostFlag;
-		std::vector<int> mapper_octantRank;
+		mapper_octantMap.clear();
+		mapper_ghostFlag.clear();
+		mapper_octantRank.clear();
 		if (!importFromScratch) {
 			m_tree->getMapping(treeId, mapper_octantMap, mapper_ghostFlag, mapper_octantRank);
 		}