As has been mentioned earlier in this Cornell Virtual Workshop roadmap, most compilers are capable of vectorizing code automatically. This topic tells how to instruct the compiler to perform automatic vectorization, as well as how to analyze the compiler's output to identify the areas of code that it was unable to vectorize. Furthermore, compilers typically allow developers to provide hints (or really, guarantees) and certain tuning parameters that can help it determine whether a section of code is vectorizable; therefore, this topic also discusses how to implement some of the hints that compilers recognize during the vectorization process.