-------- Forwarded Message -------- From: Prabhu Manyem <prabhu.man...@gmail.com> To: Andrew Makhorin <m...@gnu.org>, Neill Clift <neillcl...@live.com> Subject: GLPK Linear Programming solver Date: Tue, 28 Jun 2022 14:39:01 +0930
> Hello, > > About the GLPK Linear Programming solver 5.0, running Linear > Programming models: > > For some instances, when I run the solver from inside a C program, > using the statement > glp_simplex(mis1, NULL), > I get a solution which is fully Integer... For every variable, I > obtain an integer value. > > However, when I run the same model in Linux command line, using the > command > glpsol --nomip --simplex --lp Max_Clique_model.lp > I get an optimal solution with the SAME objective function value, but > now, some variables are NOT integers... I get a fractional solution. > > Why the difference between the 2 methods? > How to fix this problem for the command line execution of GLPK? > > Thank you very much for your help. > > Dr Prabhu Manyem > Retired Professor of Applied Mathematics > Nanchang Institute of Technology >
