[ library(ic_make_overlap_bivs) | The ECLiPSe Libraries | Reference Manual | Alphabetic Index ]

# make_overlap_bivs(+Tasks, -BivLists, -BivSums, ++Resource, ++Options)

Make a set of overlap bivalued variables for a set of tasks. Introduce a set of 'bivalued sum' variables, equal to the sum of the binaries at an overlap. The bivalued sum variables represent the total resources needed

Tasks
  A list of task structures - see library(ic_probe_support)
BivLists
  A list of lists of integer variables
BivSums
  A list of integer variables, each one the sum of a list of binaries
Resource
  An integer quantity of resource available
Options
  An options structure

## Description

Based on the tentative assignments, probe_search finds a task start time where the resources are not sufficient to make the tentative assignment feasible. In case a bottleneck task has a variable resource requirement, this is reduced to its minimum possible value. Otherwise, probe_search chooses a bivalued 'overlap' variable at this bottleneck and using add_con it adds a constraint trying to eliminate the overlap.

### Resatisfiable

no

## See Also

probing_for_scheduling : probe_cstr_sched / 7, ic_probing_for_scheduling : probe_cstr_sched / 7, ic_probe : add_con / 3, probe : add_con / 3