Add missing calls to memory management helpers

Add basic arepo test.

Co-authored-by: Steven Rieder <rieder@users.noreply.github.com>

Author: stephenpcook

src/amuse/community/arepo/__init__.py

@@ -1 +1,2 @@
-# generated file
+# generated file
+from .interface import Arepo

src/amuse/community/arepo/interface.cc

@@ -132,7 +132,8 @@ int initialize_code(){
   init_cpu_log();
 
   determine_compute_nodes();
-
+  // Needed to check available memory
+  mpi_report_committable_memory();
 
   set_default_parameters();
   begrun1(); /* set-up run  */

src/amuse/community/arepo/src/init/begrun.c

@@ -103,6 +103,12 @@ void begrun1(void)
 {
   /* read_parameter_file(ParameterFile);  ... read in parameters for this run */
 
+#ifdef HOST_MEMORY_REPORTING
+  check_maxmemsize_setting();
+#endif /* #ifdef HOST_MEMORY_REPORTING */
+
+  mymalloc_init(); /* Added from read_parameter_file */
+
   check_parameters(); /* consistency check of parameters */
 
 #ifdef HAVE_HDF5

src/amuse/community/arepo/test_simple.py

@@ -0,0 +1,5 @@
+from amuse.community.arepo import Arepo
+
+# Check code runs without errors
+x = Arepo(redirection="none")
+x.initialize_code()