TEST the ATHENA pipeline without mutex in the modified GeoLogVol

GeoModelCore/GeoModelKernel/GeoModelKernel/GeoLogVol.h

@@ -18,8 +18,8 @@
 #include "GeoModelKernel/GeoMaterial.h"
 #include <vector>
 #include <thread>
-#include <shared_mutex>
-#include <mutex>
+//JFB #include <shared_mutex>
+//JFB #include <mutex>
 class GeoLogVol : public RCBase
 {
  public:
@@ -37,13 +37,13 @@ class GeoLogVol : public RCBase
   
   //	Returns the material of the logical volume.
   const GeoMaterial* getMaterial () const {
-     std::shared_lock lock{m_mutex};
+    //JFB std::shared_lock lock{m_mutex};
      return m_material;
   }
   
   //    In some cases (gases, liquids) materials be updated?
   void setMaterial (const GeoMaterial *newMaterial) const {
-    std::unique_lock guards{m_mutex};
+    //JFB std::unique_lock guards{m_mutex};
     m_material = newMaterial;
   }
   
@@ -57,7 +57,7 @@ class GeoLogVol : public RCBase
 
   //	Material composition of this volume.
   mutable GeoIntrusivePtr<const GeoMaterial> m_material{};
-  mutable std::shared_mutex m_mutex{};
+  //JFB mutable std::shared_mutex m_mutex{};
 
   //	Shape of this volume.
   GeoIntrusivePtr<const GeoShape> m_shape{};