Are there any details around how the round-trip and exchange of data (CPU<->GPU) is implemented in order to not be a big (partially-hidden) performance hit?
e.g. this code seems like it would entirely run on the CPU?
print!("Enter your name: ");
let _ = std::io::stdout().flush();
let mut name = String::new();
std::io::stdin().read_line(&mut name).unwrap();
But what if we concatenated a number to the string that was calculated on the GPU or if we take a number:
print!("Enter a number: ");
[...] // string number has to be converted to a float and sent to the GPU
// Some calculations with that number performed on the GPU
print!("The result is: " + &the_result.to_string()); // Number needs to be sent back to the CPU
Or maybe I am misunderstanding how this is supposed to work?
e.g. this code seems like it would entirely run on the CPU?
But what if we concatenated a number to the string that was calculated on the GPU or if we take a number: Or maybe I am misunderstanding how this is supposed to work?