Why my program does not take more than 2 GB RAM on 64 GB RAM System?

Question

I am trying to train a Dlib's train_shape_predictor_ex.cpp with Halen dataset. I compiled the code with Visual Studio in release mode for 64-bit plateform as console application .

When I run the train_shape_predictor_ex.exe in command prompt, the executed process started and I saw in Task Manager that memory consumption by this process was increasing but it was stopped till around 1.9 GB and gave a Run-time Exception: bad allocation . It is unable to take more RAM than around around 1.9 GB RAM even My system is 64 GB RAM

Can anybody help me getting solve this problem? Thanks in advance !

Answer 1

To build C++ Application which can consume Physical memory than normal 32-Bit application(means 2GB), It is needed to built the application in 64-bit mode.

• Enable the /LARGEADDRESSAWARE flag to true
• Build application for 65-bit target CPU.