Victor Eijkhout was brought up as a numerical analyst, coding in Fortran and proving theorems about the asymptotic behavior of parallel numerical methods. These days he mostly writes in C , both sequential and parallel in various ways. While he no longer proves many theorems, he is still interested in code performance for finite numbers of processors. He joined the Texas Advanced Computing Center in 2005, where he supports research, teaches various aspects of high-performance computing, and flexes his programming muscle on large supercomputers.