FAdaptiveSequential: hack to compute indices between different levels
This add a check at the beginning of `compute_box_offset_index`. If the nodes are not on the same level, the lowest one ancestor which is at the highest's level is used to compute the offset index. This allows two nodes to have the same index (when they share the ancestor found). The case when two node are not on the same level is only seen during direct computation. Fortunately, in this case the node indices are only used for symetric kernels which discriminate which nodes to compute against based on the index order.
Showing with 7 additions and 0 deletions