diff --git a/src/main/begrun.cc b/src/main/begrun.cc
index 916b06f3895d49e54a580fb66c478c40bc752d5b..486d581aba761a37bc274d0a05a06609f6b05c25 100644
--- a/src/main/begrun.cc
+++ b/src/main/begrun.cc
@@ -318,6 +318,10 @@ void sim::begrun2(void)
   All.FlushLast = Logs.CPUThisRun;
 #endif
 
+  // update All on shared memory handler, just to allow it to access its elements if needed
+  if(Shmem.Island_NTask != Shmem.World_NTask && Shmem.Island_ThisTask == 0)
+    MPI_Send(All.get_data_ptr(), All.get_data_size(), MPI_BYTE, Shmem.MyShmRankInGlobal, TAG_ALL_UPDATE, MPI_COMM_WORLD);
+
 #if defined(FORCETEST) && defined(FORCETEST_TESTFORCELAW)
   gravity_forcetest_testforcelaw();
 #endif
diff --git a/src/mpi_utils/mpi_utils.h b/src/mpi_utils/mpi_utils.h
index f62434cbba373cc094be7259984e94485485f4cb..f2051551b8888c60fba7f316cd77321a266caaf0 100644
--- a/src/mpi_utils/mpi_utils.h
+++ b/src/mpi_utils/mpi_utils.h
@@ -97,6 +97,7 @@
 #define TAG_NODE_DATA 84
 #define TAG_RESULTS 85
 #define TAG_DRIFT_INIT 86
+#define TAG_ALL_UPDATE 87
 #define TAG_METDATA 500
 #define TAG_FETCH_GRAVTREE 1000
 #define TAG_FETCH_SPH_DENSITY 2000
diff --git a/src/mpi_utils/shared_mem_handler.cc b/src/mpi_utils/shared_mem_handler.cc
index ee9edfd377d3a88cbb9a1ff912bf83f4886b63ef..2bc5042691bda896e4b6c16e04155b939952e94a 100644
--- a/src/mpi_utils/shared_mem_handler.cc
+++ b/src/mpi_utils/shared_mem_handler.cc
@@ -200,6 +200,11 @@ void shmem::shared_memory_handler(void)
           Mem.myfree(message);
           Driftfac.init_drift_table();
         }
+      else if(tag == TAG_ALL_UPDATE)  // make the shared memory handler update the contents of the All structure
+        {
+          memcpy(All.get_data_ptr(), message, All.get_data_size());
+          Mem.myfree(message);
+        }
     }
 }