.input1(iteration.getPartialSolution())
.input2(adjacencyListInput)
.name("Join with Edges")
.build();
CoGroupOperator rankAggregation = CoGroupOperator.builder(new DotProductCoGroup(), LongValue.class, 0, 0)
.input1(iteration.getPartialSolution())
.input2(join)
.name("Rank Aggregation")
.build();
rankAggregation.getParameters().setLong(DotProductCoGroup.NUM_VERTICES_PARAMETER, numVertices);