diff --git a/lib/communicator/SharedMemoryMPI.cc b/lib/communicator/SharedMemoryMPI.cc
index 3ef5f5c7..44939332 100644
--- a/lib/communicator/SharedMemoryMPI.cc
+++ b/lib/communicator/SharedMemoryMPI.cc
@@ -199,6 +199,12 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
   MPI_Barrier(WorldShmComm);
   WorldShmCommBufs.resize(WorldShmSize);
 
+  //////////////////////////////////////////////////////////////////////////////////////////////////////////
+  // TODO/FIXME : NOT ALL NVLINK BOARDS have full Peer to peer connectivity.
+  // The annoyance is that they have partial peer 2 peer. This occurs on the 8 GPU blades.
+  // e.g. DGX1, supermicro board, 
+  //////////////////////////////////////////////////////////////////////////////////////////////////////////
+  //  cudaDeviceGetP2PAttribute(&perfRank, cudaDevP2PAttrPerformanceRank, device1, device2);
   ///////////////////////////////////////////////////////////////////////////////////////////////////////////
   // Each MPI rank should allocate our own buffer
   ///////////////////////////////////////////////////////////////////////////////////////////////////////////