From 0770b8ff839e70dcac317561361d9a5c38acb50b Mon Sep 17 00:00:00 2001
From: Alex Lindsay <alexlindsay239@gmail.com>
Date: Thu, 2 Feb 2017 16:09:12 -0600
Subject: [PATCH] Fix compute thread for ElemAuxBcs (#8444).

---
 framework/src/base/ComputeElemAuxBcsThread.C | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/framework/src/base/ComputeElemAuxBcsThread.C b/framework/src/base/ComputeElemAuxBcsThread.C
index 342f57146f48..a8802eb605ab 100644
--- a/framework/src/base/ComputeElemAuxBcsThread.C
+++ b/framework/src/base/ComputeElemAuxBcsThread.C
@@ -71,6 +71,13 @@ ComputeElemAuxBcsThread::operator() (const ConstBndElemRange & range)
       {
         _problem.prepare(elem, _tid);
         _problem.reinitElemFace(elem, side, boundary_id, _tid);
+        std::set<unsigned int> needed_mat_props;
+        for (const auto & aux : iter->second)
+        {
+          const std::set<unsigned int> & mp_deps = aux->getMatPropDependencies();
+          needed_mat_props.insert(mp_deps.begin(), mp_deps.end());
+        }
+        _problem.setActiveMaterialProperties(needed_mat_props, _tid);
 
         if (_need_materials)
         {
@@ -102,6 +109,7 @@ ComputeElemAuxBcsThread::operator() (const ConstBndElemRange & range)
       }
     }
   }
+  _problem.clearActiveMaterialProperties(_tid);
 }
 
 void