Function solana_core::cluster_info::compute_retransmit_peers

pub fn compute_retransmit_peers(
    fanout: usize, 
    node: usize, 
    index: &[usize]
) -> (Vec<usize>, Vec<usize>)

Turbine logic 1 - For the current node find out if it is in layer 1 1.1 - If yes, then broadcast to all layer 1 nodes 1 - using the layer 1 index, broadcast to all layer 2 nodes assuming you know neighborhood size 1.2 - If no, then figure out what layer the node is in and who the neighbors are and only broadcast to them 1 - also check if there are nodes in the next layer and repeat the layer 1 to layer 2 logic Returns Neighbor Nodes and Children Nodes (neighbors, children) for a given node based on its stake