GAMS World Forum

Hello everyone, I use CPLEX to solve a QCP model. After trial and error on previous version of my model, I figured turning off presolve reduces my run time by around 2/3 (2 hours instead of 6 hours). This is the option file setting in my code: $onecho > cplex.opt names no scaind 1 preind 0 $offecho ...

Hi guys, I am using Barrier algorithm in CPLEX to solve a QP model. I would like to assign a starting point for the Barrier algorithm (preferably from a gdx file rather than a previous solve in the same run). This might help: The most related post in the forum is https://forum.gamsworld.org/viewtopi...