The Finder subgraph performs a fine-grained search of the MUSIC spectrum regions tagged by the Scanner subgraph to identify a negative-to-positive gradient change in the spectrum as highlighted in the preceding diagram. When the finder finds a gradient change, it sets the tag to the index of the bin corresponding to the local minimum. To meet the 1 \(\mu s\) throughput target, this search is partitioned over a \(16\) tile pipeline. In the pipeline, each tile performs the fine-grained search on two of the 8-bin regions. The following diagram shows the AI Engine physical array view for the Finder subgraph.