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Hello, I've been using code like this to get the solution status of a MIP: case getprobstat of XPRS_OPT: status:="Optimum found" XPRS_UNF: status:="Unfinished" XPRS_INF: status:="Infeasib...
4 months ago5Views
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Dear support team, I have tried to use a specific separation procedure, $(l, S)$ Inequalities, to solve the lot-sizing problem proposed in the references, like Algorithm and formulations for lot siz...
8 months ago4Views
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Is it reasonable to declare constraints in a procedure? The behaviour illustrated by the following Mosel suggests that it is not model ModelName uses "mmxprs" declarations x: array(1..2) of mpva...
6 years ago3Views
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Hello everyone, I am implementing a multi-objective model in Python, and I would like to set a time limit for each objective function. It would be best if I could set different time limits for each,...
1 year ago3Views
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How to make cuts added in a preIntsol callback globally valid (root node) instead of local to the current subtree?
I'm using the Xpress Optimizer Java API (com.dashoptimization, Xpress 9.4) to solve a MIP with lazy constraints that are generated dynamically. My constraints are all globally valid — they are not lo...2Views0likes2CommentsCan someone explain: Failed to initialize the compute server model, no license I 'm doing a base install on my work Windows 11 laptop for an evaluation. I may be misinformed, but the community lice
Screen shot of my error. I'm doing the "insight_python_example" found in: insight-developer-kit-5.17.0-win_x86_64\examples\insight\basic_apps\python\insight_python_example Are these example outdat...1View0likes2CommentsA specific separation procedure, $(l,S)$ Inequalities, to solve the lot-sizing problem
Dear support team, I have tried to use a specific separation procedure, $(l, S)$ Inequalities, to solve the lot-sizing problem proposed in the references, like Algorithm and formulations for lot siz...4Views0likes4Comments