I am using GAMS to solve a linear problem with CPLEX.
As the needed memory is to high for my private machine, I set up a virtual server with the following specifications:
64GB RAM and 8vCPU
On my private machine (16GB RAM, 3.30 GHz with 12 logical processors) I normally use the following settings, to enable parallel calculation and speed up the whole process a lot, supposedly because I can use all of my CPU.
option LP=CPLEX;
option threads = 12;
When I am using this setting (threads = 8) on the virtual server, the CPU stays around 50% usage and the task takes forever. Is it possible, that the "option threads" cannot be used for virtual CPUs? What could be a workaround?
Thanks a lot :)