java - Related jobs in JSprit -


is possible handle relations between jobs (in case services) in jsprit?

for instance 1 job has start @ same time 1 or more other jobs. or 1 job must not start before end of job (normal sequence).

if not, know other java libraries can handle such kind of restrictions?

thank you!

yes can handle such relations jsprit. bit of coding, - think - easy implement. illustrate it, prepared 5 examples based on vehicle routing problems (vrp) developed christofides-mingozzi-toth's* (first benchmarking instance). follow links behind individual headlines , code. note first activity in route marked triangle. labels denote jobids.

noconstraints

noconstraintsatall

capacityconstraints

enter image description here

job 13 , 21 in same route

enter image description here

job 13 , 21 in same route , 21 before 13

enter image description here

job 13 , 21 in same route , 13 right after 21

enter image description here

visit http://jsprit.github.io/ , number of code examples , docs.

*n. christofides, a. mingozzi, , p. toth. vehicle routing problem. in n. christofides, a. mingozzi, p. toth, , c. sandi, editors, combinatorial optimization. john wiley, chichester, 1979.


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