
cumulative(+StartTimes, +Durations, +Resources, ++ResourceLimit)

   Cumulative constraint on specified tasks.

Arguments
   StartTimes          List of start times for tasks (fd variables or integers)
   Durations           List of duration for tasks (fd variables or integers)
   Resources           List of resource uages by tasks (fd variables or integers)
   ResourceLimit       Maximum amount of resource available (integer)

Type
   library(ic_edge_finder3)

Description

   A cumulative scheduling constraint. StartTimes, Durations and Resources
   are lists of equal length N of finite domain variable or integers.
   ResourceLimit is an integer. The declarative meaning is:
   If there are N tasks, each starting at a certain start time, having
   a certain duration and consuming a certain (constant) amount of
   resource, then the sum of resource usage of all the tasks does not
   exceed ResourceLimit at any time.
   This constraint can propagate more information than the implementation
   in library(cumulative).


See Also
   disjunctive / 2, cumulative / 5
