Vertex Communication Interface

Next to the communication methods provided by the cage a vertex also provides methods to communicate with its adjacent vertices.

It is assume that a cage has allready been instantiated and initialised.

1. Collect data from all incoming edges:

   // Just get a vertex from the cage
   Vertex vertex = cage.getVertex(0);
   
   // Prepare the receive container
   std::vector<T_Data> collectData(vertex.nInEdges());
   
   // Synchronous recv messages from all incoming edges
   vertex.collect(recvData);

   This functionality is also available in the cage:

   cage.collect(vertex, collectData);

2. Spread data to all outgoing edges:

   // Again, take some random vertex
   Vertex vertex = cage.getVertex(0);
   
   // Prepare the container to spread
   std::vector<T_Data> spreadData(1, static_cast<T_Data>(1));
   
   // Synchron send same data over all outgoing edges
   v.spread(spreadData);
   
   // Asynchron send same data over all outgoing edges
   std::vector<Event> events;
   v.spread(sendData, events);

Further Links

• graybat::CommunicationVertex