Module Mapred_tasks.Ord

module Ord: sig .. end

type t = Mapred_tasks.task 

val compare : Mapred_tasks.task -> Mapred_tasks.task -> int

Compare here the tasks in an execution-friendly order, i.e. so that Mapred_sched.executable_tasks returns a reasonably ordered list.

Sorting:

• `Map < `Sort < `Shuffle
• within map and sort, just sort by ID
• Shuffle: sort first by round (look at map_id delta, and at span of partitions), then by IDs