Can global constant array be reasigned?

Accelerated Computing CUDA CUDA Programming and Performance
1

constant radius[100];

void main(){
assignment1;
assignment2;
}

What’s the lifetime and scope of constant memory? If it is used together with a class method, is there any difference?

2

Here is a forum discussion on the lifetime of constant memory. I’m not sure about your second question.

3

You can only change the values of the constant variables by using cuda memcopy to symbol.