- Is an integer whose value is the threshold for the vectorization of loops. Possible values are 0 through 100.Ifnis 0, loops get vectorized always, regardless of computation work volume.Ifnis 100, loops get vectorized when performance gains are predicted based on the compiler analysis data. Loops get vectorized only if profitable vector-level parallel execution is almost certain.The intermediate 1 to 99 values represent the percentage probability for profitable speed-up. For example,n=50 directs the compiler to vectorize only if there is a 50% probability of the code speeding up if executed in vector form.
- Loops get vectorized only if profitable vector-level parallel execution is almost certain. This is also the default if you do not specifyn.