dgl.NodeFlow.block_adjacency_matrix¶

NodeFlow.
block_adjacency_matrix
(block_id, ctx)[source]¶ Return the adjacency matrix representation for a specific block in a NodeFlow.
A row of the returned adjacency matrix represents the destination of an edge and the column represents the source.
Parameters:  block_id (int) – The specified block to return the adjacency matrix.
 ctx (context) – The context of the returned matrix.
Returns:  SparseTensor – The adjacency matrix.
 Tensor – A index for data shuffling due to sparse format change. Return None if shuffle is not required.