From c88b64a86fe50fe9883e5be1cbac3407760fd1f2 Mon Sep 17 00:00:00 2001
From: Xian <xhchang@ucsc.edu>
Date: Wed, 18 Dec 2024 14:02:29 +0100
Subject: [PATCH] Reserve memory for hash_map

---
 src/subcommand/minimizer_main.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/subcommand/minimizer_main.cpp b/src/subcommand/minimizer_main.cpp
index e1ec83d920..960c9eddef 100644
--- a/src/subcommand/minimizer_main.cpp
+++ b/src/subcommand/minimizer_main.cpp
@@ -360,6 +360,7 @@ int main_minimizer(int argc, char** argv) {
 
     //Map node id to what gets stored in the payload - either the zipcode or index into oversized_zipcodes
     hash_map<vg::id_t, gbwtgraph::Payload> node_id_to_payload;
+    node_id_to_payload.reserve(gbz->graph.max_node_id() - gbz->graph.min_node_id());
 
     // Build the index.
     if (progress) {