I have a model for solving an optimization transport problem, it contains from 5000 to 50000 variables and 1000-7000 restrictions (depending on the dataset), and I tried to run the model on the GLOP solver both with and without restrictions (that is, it is feasible in any case), but I always get the message
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR E0000 00:00:1710666470.315259 24996 linear_solver.cc:2024] No solution exists. MPSolverInterface::result_status_ = MPSOLVER_INFEASIBLE,
I tried to run the model from the example from the ortools documentation and it gave a normal solution, does anyone know what the problem is?
I tried to find a solution to this problem and came across solution tolerance, I tried changing this parameter (1e-5, 1e-3, 1e-1, 1, 100, 1000) - it had no effect Also, if the problem is in the solver, could you recommend a non-commercial solver to solve this problem?