Chief architect and scientist for defining, designing, and implementing the key research technologies that influenced IBM's server design in high-performance computing, Pattnaik has served as an IBM Fellow at the IBM Thomas J. Watson Research Center since his appointment in 2008 for his technical leadership in defining and optimizing the stack for IBM's enterprise server systems.
His research resulted in significantly faster and less expensive systems, and Pattnaik pushed the robustness of the UNIX operating system to new levels, yielding significant client value. His contributions have spanned across the enterprise stack of systems, software, and services, including partitioning, autonomic computing, and reliability, availability, and serviceability technologies. He was the first to recognize the importance of the memory subsystem in a multi-core system.
