knuth multiplicative hash

Question

Is this a correct implementation of the Knuth multiplicative hash.

int hash(int v)
{
    v *= 2654435761;
    return v >> 32;
}

Does overflow in the multiplication affects the algorithm?

How to improve the performance of this method?

user_10498418 · Answer

Might be late, but heres a Java Implementation of Knuth's Method :

For a hashtable of Size N :

public long hash(int key) {
    long l = 2654435769L;
    return (key * l >> 32) % N ;
}