OptaPlanner大型数据集问题

Question

我只是想知道为什么optaplanner会在我的数据上引发异常。是因为它的局限性吗？我的CVRP数据集包含1800个点，需要33辆车。数据集是这样的：

NAME :  X-n1784-k33             
COMMENT :   morteza 2019                
TYPE :  CVRP                
DIMENSION : 1784                    
EDGE_WEIGHT_TYPE :  EUC_2D              
CAPACITY : 330                  
NODE_COORD_SECTION                  
1   369 715         
2   0   858         
3   1   871         
4   1   872     
......
1783    544 625         
1784    596 646         
DEMAND_SECTION                  
1 0                 
2 14                    
3 2     
......
1784 25                 
DEPOT_SECTION                   
    1               
    -1              
EOF     

我以前读过this answer，但我认为这不是问题。

Answer 1

基于您通过电子邮件发送给我的例外情况：

Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Exception in inputFile (D:\Projects\POWERBI\algorithm\routing\12 - existing solutions\CVRP existing codes\x_N1784_K33_1.vrp)
...
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: The number of demands with 0 demand (55) differs from the number of depots (1).
at org.optaplanner.examples.vehiclerouting.persistence.VehicleRoutingImporter$VehicleRoutingInputBuilder.readVrpWebDepotList(VehicleRoutingImporter.java:356)
...

似乎VehicleRoutingImporter无法正确解析您的输入文件：

java.lang.IllegalStateException: The number of demands with 0 demand (55) differs from the number of depots (1).