How to initialize data according to 'int' GPU memory address

Suppose I got a specific GPU memory address number like 140681920118784, how can i initialize data according to this address?

Hi there @2968332764 , welcome to the NVIDIA developer forums.

I am curious what the purpose for this would be?

There are different APIs (OpenGL, CUDA, DirectX) that let you access VRAM in a controlled fashion and depending on purpose. But due to the complexity of how the CPU/GPU/VRAM interaction and communication works, there is now way to directly access a specific memory address with a direct command. It always has to go through some form of memory handler.