message: Change number of domains in IOManager blueprint generation
diff: @@ -987,7 +987,7 @@ void IOManager::writeBlueprintIndexToRootFile(DataStore* datastore,
  std::string bp_index("blueprint_index/" + mesh_name);
  datastore->generateBlueprintIndex(domain_path,
  - mesh_name, bp_index, 1);
  + mesh_name, bp_index, m_comm_size);
  Group* ind_group = datastore->getRoot()->getGroup("blueprint_index");
  writeGroupToRootFile(ind_group, file_name);
  