Constraint Solver Files

CP Solver v1.4 build 34 change log (since the last release, build 23 on 18 Aug 2023 00:40)

Revision 1058d5a by tomas-muller <muller@unitime.org> (15-Feb-2024 6:22 PM)
  Course Timetabling: XML Save
    - when saving best solution (Xml.SaveBest = true) always output the best="true" attributes,
      event if the placement is the same as current
    - this fixes an issue in UniTime where the best solution is not remembered after restart or
      pasivation

Revision 94d6ae0 by tomas-muller <muller@unitime.org> (23-Jan-2024 4:56 PM)
  Student Scheduling: Universal Override
    - added the ability to match on concentration, degree, or program
    - added the ability to match on primary area, classification, major, concentration, degree,
      program, or campus

Revision 8a27733 by tomas-muller <muller@unitime.org> (23-Jan-2024 4:44 PM)
  Student Scheduling: Universal Override
    - added UniversalOverride reservation that is matching using a student filter
    - the student filter may contain the following attributes
    - area for academic area code
    - clasf or classification for classification code
    - campus for campus code
    - major for major code
    - minor for minor code
    - group for student group code
    - accommodation for accommodation code
    - student for student's external id or name
    - advisor for student's advisor external id
    - status for student status code
    - type for student groups with a type

Revision 9e9b6b9 by tomas-muller <muller@unitime.org> (23-Jan-2024 4:44 PM)
  Student Scheduling: Student Campus
    - added student campus to AreaClassificationMajor

Revision 1573987 by tomas-muller <muller@unitime.org> (11-Jan-2024 7:13 PM)
  Course Timetabling: Room Partition
    - if a class needs two or more rooms, ensure that it does not have a room and one of its
      partitions at the same time

Revision b3e78d8 by tomas-muller <muller@unitime.org> (11-Jan-2024 6:56 PM)
  Course Timetabling: Multiple Rooms With Different Preferences
    - support multiple rooms with different preferences
    - including the case when some rooms are prohibited in some positions
    e.g., a class needs a classroom and a lab (that is not a classroom)

Revision 8530c94 by tomas-muller <muller@unitime.org> (9-Jan-2024 4:01 PM)
  Course Timetabling: Class Split Attendance Between Multiple Rooms
    - added ability to split class attendance between multiple rooms
    (class.nbrRooms > 1 and class.splitAttendance = true)
    - in this case, the class must fit the selected rooms (total of room capacity is equal or
      above class mit limit times room ratio)

Revision 133fc00 by tomas-muller <muller@unitime.org> (23-Dec-2023 1:53 PM)
  Examples: Binary CSP
    - corrected ClassCastException in the Test class

Revision 7c51d7e by tomas-muller <muller@unitime.org> (22-Nov-2023 3:02 PM)
  Student Scheduling Solver: Distance Conflicts
    - shorter synchronization times when computing distance conflicts
    - use read/write lock when updating distance cache instead of having the whole method
      synchronized

Revision bd49bca by tomas-muller <muller@unitime.org> (19-Nov-2023 11:35 PM)
  Batch Student Scheduling: Standard Selection (IFS)
    - do not penalize unassignments by default
    - added an additional parameter to disable/enable the ability to accept worsening moves for
      critical course requests
    Neighbour.CriticalStandardCanWorsen, defaults to false
    - disabled timeout for switching of IFS (Neighbour.StandardTimeOut=0)
    - updated default timeout for not allowing conflicts to last 10% of the seach
      (Neighbour.StandardConflictTimeOut parameter)
    - conflicts are not allowed during the last 10% of the search time
    - added timeout for accepting worsening moves (Neighbour.StandardWorsenTimeOut)
    - defaults to last 30% of the time limit (worsening moves are not allowed during the last 30%
      of the search)

Revision edf1e54 by tomas-muller <muller@unitime.org> (16-Nov-2023 12:23 PM)
  Batch Student Scheduling: Standard Selection (IFS)
    - in the enrollment selection, allow to only select values with conflicts that can be
      unassigned
    (passing the AssignmentCheck interface from StandardSelection and CriticalStandardSelection
    who already implement the canUnassign method)
    - Standard Selection: added ability to only select neighbors that are not worsening the total
      value (when Neighbour.StandardCanWorsen is set to false, default to true)
    - Critical Standard Selection: always only select neighbors that are not worsening the total
      value

Revision 84de73e by tomas-muller <muller@unitime.org> (15-Nov-2023 9:54 PM)
  Simple Neighbour: Value
    - include conflicts in the value computation, i.e., toValue(Assignment) method

Revision d5af64f by tomas-muller <muller@unitime.org> (8-Nov-2023 10:11 PM)
  Student Scheduling: Time / Availability Conflicts Report
    - added ability to filter the course requests by priority
    - for instance, to only lists time and space conflicts for critical course requests