Hierarchical Constraints - 2021.1 English - UG1076

When creating complex graphs with multiple subgraph classes, or multiple instances of the same subgraph class, the location constraints described above can also be applied to each kernel instance or kernel port instance individually at the point of subgraph instantiation instead of the definition. In this case, you need to specify the graph qualified name of that kernel instance or kernel port instance in the constraint as shown below. Also, make sure that the kernels or their ports being constrained as above are defined to be public members of the subgraph.

class ToplevelGraph : public graph {
 public:
  indep_nodes_graph1<1,2,3,2> mygraph;
  port<input> datain[2] ;
  port<output> dataout[2] ;

  ToplevelGraph() {
    for (int i = 0; i < 2; i++) {
      connect<stream, window<64> >(datain[i], mygraph.datain[i]);
      connect<window<64>, stream >(mygraph.dataout[i], dataout[i]);

      // hierarchical constraints
      location<stack>(mygraph.kr[i]) = bank(3, 2+i, 2);
      location<buffer>(mygraph.kr[i].out[0]) = location<kernel>(mygraph.kr[i]);
    }
  };
};

aiecompiler --constraints Work/temp/graph_aie_mapped.aiecst src/graph.cpp