Itanium Rising: Breaking Through Moore's Second Law of Computing Power

Chapter 12. The Aries Dynamic Code Translation Project

“HP customers who are using PA-RISC systems today will consider purchasing Itanium systems in the future. A number of these customers will consider running their PA-RISC application binaries under the Aries dynamic code translation on Itanium, either for the short term or for the foreseeable future.”

—Jon Davis, HP-UX 11 Product Manager

In This Chapter:

• The need for Aries

• Binary compatibility

• The importance of binary compatibility for the IT manager

• The Aries dynamic code translation project

• Aries reliability, usability, and performance

• Results of Aries testing

Normally, the transition to a new architecture requires a tremendous amount of effort and tolerance for systemwide disruption. Fortunately, ...