I worked for Cray Research and its successors for many years, including a stint at Cray Computer Corporation in Colorado Springs on the Cray-3 project. I wrote

I worked for Cray Research and its successors for many years, including a stint at Cray Computer Corporation in Colorado Springs on the Cray-3 project. I wrote the compiler's optimization and vectorization phase, and this gave me a chance to interact with Seymour on several questions and problems with the architecture. It remains a very fond memory.