added an update of the All-structure on the shared memory handler in begrun2()...

added an update of the All-structure on the shared memory handler in begrun2() also in cases comoving integration is not used

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

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

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);
+        }
     }
 }