Originally posted by: wyk

Hi,

I was wondering if there is an analytical way to estimate the memory used by the constraints without using the profiler. For example, if I have the following constraint:

x >= y + 5,

where x and y are both IloInt. How much memory does CPLEX use to implement this constraint? Also, is there a reference for the type and the size of the CPLEX variables?

Thanks!
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

Do you mean x and y are of type IloIntVar (you wrote IloInt)?
What memory consumption of the constraint are you interested in? The space required for the instances of the C++ classes? In this case IloEnv::getMemoryUsage() may be helpful.
Or the memory that is required by the core engine when it actually starts solving the problem?
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: wyk

Hi Daniel,

Yes x and y are of type IloIntVar. I was trying to estimate the space required to fit the variables and constraints. The function getMemoryUsage() works very well for my purpose. Thanks a lot!
#CPLEXOptimizers
#DecisionOptimization