Hi, I must find start and end times for orders on different equipment's in requirement of a stock. What can I do better to get faster a solution. I read the forum entries but it don't helps. - Scheduling events with varying durations - corrupted score - Time Slots vs Time Periods Graphics and detail description in the pdf. Domain model @PlanningEntity EquipmentAllocation has a Equipment EquipmentAllocation has a Order EquipmentAllocation has a TimeSlot ------------------------------------------------------ @PlanningVariable Order Attribute: quantity ------------------------------------------------------ TimeSlot Attribute: startTime, endTime, duration, sequenceNumber ------------------------------------------------------ Material Attribute: stock, minStock, maxStock ------------------------------------------------------ Material Demand has a TimeSlot Attribute: quantity ------------------------------------------------------ Conditions: - Order is executable on each equipment. - Orders has different sizes. - Order running time is depending of the material and the equipment. - Gaps between orders are possible if there is no demand. - Gaps between orders are possible when there is a equipment setup time. - Parallel orders with same material on different equipment's are possible. Target: - Calculate start and endtims for an order. - Start and endtime is precisely one minute (maximum five minutes if runtime is to long). - Satisfy only the demand of a material. - Good result in 5 minutes. - No exceed min or max stock. Plan data: - Plan for 24 hours. - Plan 35 orders (normal order time is 2 hours). - Plan 5 demands with different materials (7 orders per demand). - Plan 3 equipment's. Problem: - No result in 5 minutes. - Concept with timeslots has to many possible order positions. - No restrictions are possible to find the best solution. Use a pillar swap to create the possible order positions on each equipment. Use a pillar swap to lay the order over a lot of timeslots on a equipment. Example: - 1 order (with 2 hours) - 1 equipment - 24 hours planning time with 1 timeslot per minute - Possible order positions = 22 * 60 = 1320 (on one equipment) - Possible order positions = 1320 * 3 = 3960 (on three equipment) - Possible order positions = 3960 * 35 = 138.600 (all orders on all equipment) rule "Check order not allocate to less." when $f : Order( $quantity : quantity , $m : material ) $result : Number( (intValue > 0) && ( intValue < $quantity ) ) from accumulate( EquipmentAllocation( order != null && order == $f , $sp : equipment.speedMap ), sum($sp.get($m)) ) then int hard = $result.intValue() - $quantity; scoreHolder.addHardConstraintMatch(kcontext, hard ); end rule "Check order not allocate to many." when $f : Order( $quantity : quantity , $m : material ) $result : Number( (intValue > 0) && ( intValue > $quantity ) ) from accumulate( EquipmentAllocation(order != null && order == $f , $map : equipment.orderMap ) sum( $map.get( $f )) ) then int hard = $quantity - $result.intValue(); scoreHolder.addHardConstraintMatch(kcontext, hard ); end rule "Check demand" when $m : Material( $stock : stock ) $t : TimeSlot( $sequence : sequence ) $sumDemand : Number( ) from accumulate ( Demand ( timeSlot.sequence <= $sequence , material == $m , $quantity : quantity ) sum( $quantity ) ) $sumAllocation : Number( ($stock + intValue - $sumDemand.intValue()) < 0 ) from accumulate ( EquipmentAllocation( (order != null && order.material == $m) , timeSlot.sequence <= $sequence , $sp : equipment.speedMap), sum( $sp.get($m) ) ) then scoreHolder.addHardConstraintMatch(kcontext, -1); end rule "Check min stock" when $m : Material( $stock : stock , $minStock : minStock, $maxStock : maxStock ) $t : TimeSlot( $sequenceT : sequence ) $sumDemand : Number( ) from accumulate ( Demand ( timeSlot.sequence <= $sequenceT , material == $m , $quantityDemand : quantity ) sum( $quantityDemand ) ) $sumAllocation : Number( ($stock + (intValue) - $sumDemand.intValue()) < $minStock ) from accumulate ( EquipmentAllocation( order != null , order.material == $m , timeSlot.sequence <= $sequenceT , $sp : equipment.speedMap ), sum( $sp.get($m) ) ) then scoreHolder.addHardConstraintMatch(kcontext, -1); end rule "Check max stock" when $t : TimeSlot( $sequence : sequence ) $m : Material( $stock : stock , $maxStock : maxStock ) $sumDemand : Number( ) from accumulate ( Demand ( timeSlot.sequence <= $sequence , material == $m, $quantityDemand : quantity) sum( $quantityDemand ) ) $sumAllocation : Number( ($stock + intValue - $sumDemand.intValue()) > $maxStock ) from accumulate ( EquipmentAllocation( (order != null && order.material == $m) , timeSlot.sequence <= $sequence , $sp : equipment.speedMap ), sum( $sp.get($m) ) ) then scoreHolder.addHardConstraintMatch(kcontext, -1); end Gruß Michael Mohr Software Engineer ________________________________ CONFIDENTIALITY : This e-mail and any attachments are confidential and may be privileged. 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