From b66c6d47f2d83a610901c03f8f919635da0dc9b3 Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Tue, 28 Nov 2023 02:32:25 -0600
Subject: [PATCH] In volume calculation mode, only load atomic weight ratio
 from data files (#2741)

---
 src/nuclide.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/nuclide.cpp b/src/nuclide.cpp
index d2863025270..14d21bb090a 100644
--- a/src/nuclide.cpp
+++ b/src/nuclide.cpp
@@ -62,6 +62,10 @@ Nuclide::Nuclide(hid_t group, const vector<double>& temperature)
   read_attribute(group, "metastable", metastable_);
   read_attribute(group, "atomic_weight_ratio", awr_);
 
+  if (settings::run_mode == RunMode::VOLUME) {
+    return;
+  }
+
   // Determine temperatures available
   hid_t kT_group = open_group(group, "kTs");
   auto dset_names = dataset_names(kT_group);