diff --git a/lib/cartesian/Cartesian_base.h b/lib/cartesian/Cartesian_base.h
index 72b21ee3..9d43837d 100644
--- a/lib/cartesian/Cartesian_base.h
+++ b/lib/cartesian/Cartesian_base.h
@@ -52,7 +52,7 @@ public:
 
     // Physics Grid information.
     std::vector<int> _simd_layout;// Which dimensions get relayed out over simd lanes.
-    std::vector<int> _fdimensions;// Global dimensions of array prior to cb removal
+    std::vector<int> _fdimensions;// (full) Global dimensions of array prior to cb removal
     std::vector<int> _gdimensions;// Global dimensions of array after cb removal
     std::vector<int> _ldimensions;// local dimensions of array with processor images removed
     std::vector<int> _rdimensions;// Reduced local dimensions with simd lane images and processor images removed 
@@ -121,7 +121,6 @@ public:
       Lexicographic::CoorFromIndex(coor,Oindex,_rdimensions);
     }
 
-
     //////////////////////////////////////////////////////////
     // SIMD lane addressing
     //////////////////////////////////////////////////////////
@@ -207,16 +206,16 @@ public:
       std::vector<int> lcoor;
       GlobalCoorToProcessorCoorLocalCoor(pcoor,lcoor,gcoor);
       rank = RankFromProcessorCoor(pcoor);
-
+      /*
       std::vector<int> cblcoor(lcoor);
       for(int d=0;d<cblcoor.size();d++){
 	if( this->CheckerBoarded(d) ) {
 	  cblcoor[d] = lcoor[d]/2;
 	}
       }
-
-      i_idx= iIndex(cblcoor);// this does not imply divide by 2 on checker dim
-      o_idx= oIndex(lcoor);  // this implies divide by 2 on checkerdim
+      */
+      i_idx= iIndex(lcoor);
+      o_idx= oIndex(lcoor);
     }
 
     void RankIndexToGlobalCoor(int rank, int o_idx, int i_idx , std::vector<int> &gcoor)