Objective To learn to write a work-efficient scan kernel Two-phased balanced tree traversal Aggressive re-use of intermediate results 一 Reducing control divergence with more complex thread index to data index mapping 电子科妓女学 O20 Objective – To learn to write a work-efficient scan kernel – Two-phased balanced tree traversal – Aggressive re-use of intermediate results – Reducing control divergence with more complex thread index to data index mapping