Add bool MFIter::initialized

Author: ax3l

Src/Base/AMReX_MFIter.H

@@ -180,6 +180,7 @@ protected:
     IndexType     typ;
 
     bool          dynamic;
+    bool          initialized;
 
     struct DeviceSync {
         DeviceSync () = default;

Src/Base/AMReX_MFIter.cpp

@@ -215,10 +215,13 @@ MFIter::~MFIter ()
 void
 MFIter::Finalize ()
 {
+    if (!initialized) return;
+
 #ifdef AMREX_USE_OMP
 #pragma omp master
 #endif
     {
+        initialized = false;
         depth = 0;
     }
 
@@ -354,6 +357,13 @@ MFIter::Initialize ()
 
         typ = fabArray.boxArray().ixType();
     }
+
+#ifdef AMREX_USE_OMP
+#pragma omp master
+#endif
+    {
+        initialized = true;
+    }
 }
 
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