Originally posted by: RGolfeto

Hi All,

I am working in a solution that uses Java/Concert to build a langrangean model with column generation.
However, due to needs to build and solve many models interactively, we are experiencing a performance issue and we are looking forward on how to address this. One option is to change the enviroment to C/Callable Library.
There is a study that points out the performance benchmark of Concert vs Callable?

Many Thanks!

What exactly do you mean by building the model "interactively"?

And what exactly are the performance issues you observe?

The overhead for Concert is mainly for building the model (also known as "extraction"). Once the solve has started, the executed code should be the same for callable library and Concert. An exception is using callbacks. For every callback invocation Concert has to go back and forth between the native C code in the engine and Java.