Zohar Levi
- Total activity 53
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 2
- Subscriptions 13
Posts
Recent activity by Zohar Levi-
A test problem
AnsweredCan someone please check if gurobi solves the following model in a reasonable time?https://drive.google.com/file/d/1EraE4nnpC1bIUomcI8waVVKmjIdHAMim/view?pli=1Is there an online service, where I ca...
-
LP with only equality constraints
AnsweredHow do I optimize it efficiently? Gurobi treats it as a standard LP (runs barrier/simplex). Update: I'm not sure about my expectation anymore. The problem is min c'x s.t. Ax=b. The KKT system is un...
-
cookie for a day
AnsweredIt seems that the site remembers my login only for a day and requests it afterwards. Said login go smoothly when I reply to a message, and I need to do it a couple of times until it "gets me." The ...
-
warm start LP solver in matlab
AnsweredIs it possible, or do I need c++ for that? https://www.gurobi.com/documentation/9.5/refman/lpwarmstart.html
-
linprog in c++
OngoingHow do I translate matlab's example linprog.m into c++? Specifically, translate model.A = A; model.obj = c; model.modelsense = 'Min'; model.rhs = b; model.sense = [ '<' ]; gurob...
-
Limit solutions for an LP
AnsweredI have a large linear program that takes 10 seconds, which is too long. I'd like to limit it and get a solution that is feasible but not necessarily optimal. For a mix-int problem, there's the para...
-
Methods for solving binary LP
OngoingCan you venture an opinion on the following: Methods for binary linear programming - Mathematics Stack Exchangehttps://math.stackexchange.com/questions/4504572/methods-for-binary-linear-programming
-
pre-solve algorithm
AnsweredCan you perhaps refer me to a paper that explains the algorithm? Usually, it seems to do a good job. Sometimes, though, the number of int vars increases for reducing bin vars or continuous vars. In...
-
pre-solve is buggy
Answeredhi, The pre-solve seems to be buggy: https://github.com/yalmip/YALMIP/discussions/986 -z
-
Beaten by a naive method solving MILP
OngoingI have an MILP (mixed int linear prog). There is the comiso library https://www.graphics.rwth-aachen.de/software/comiso/ which does something super naive: Solve the problem treating all vars as co...