I am a VP of Engineering in the Core organization, the team primarily responsible for the technical foundation behind Google's flagship products. Before that I was a Google Fellow, led engineering in Google Maps and was the technical lead for Google's computing infrastructure. My technical interests range from distributed systems software to the design of Google's computing platform. While at Google I have co-authored articles on warehouse-scale computing, energy proportionality and storage system reliability. I also co-wrote "The Datacenter as a Computer", the first textbook to describe the architecture of warehouse-scale computing systems, now in its 2nd edition.
I was previously a member of the research staff at Digital Equipment Corporation and Compaq, where our group did some of the pioneering research on modern multi-core architectures. Some of those multi-core processors also use variants of the ring-based cache-coherency interconnects that were the subject of my doctoral research. As a graduate student I was one of the designers of the USC RPM, an early FPGA-based emulator for multiprocessor memory systems.
I am a Fellow of the Association for Computing Machinery (ACM) and the American Association for the Advancement of Science. In June 2020 I received the ACM/IEEE Computer Society Eckert Mauchly award. I was the program chair of ACM ISCA'09 and a National Academy of Engineering Gilbreth Lectureship awardee in 2012. From 2013-2019 I served on the National Academies' Computer Science and Telecommunications Board. I have been a keynote speaker at several top-tier research conferences and a guest lecturer at Stanford and PUC-Rio, Brazil.
I hold B.S. and M.S. degrees in Electrical Engineering from the Pontifícia Universidade Católica of Rio de Janeiro, and a Ph.D. in Computer Engineering from the University of Southern California.
I have a limited time budget for external professional activities but have enjoyed many opportunities to work with the academic comunity and other professional organizations.
Program chair of ACM ISCA 2009
Serving at the ASPLOS 2016 program committee; having previously served at PCs for ASPLOS'08, ISCA ('01, '02, '05, '06, '07, '09), SBAC-PAD ('01, '03, '06), PACT'04, ICS ('02, '03), IEEE Top Picks in Computer Architecture, 2008.
Serving at the steering committee of the NSF Workshop on Sustainable Data Centers; having previously served on steering committees for ISCA 2010 and ISCA 2011
Lectures at Columbia, Duke, USC, U. Edinburgh, UT Austin, Imperial College, Cambridge University, Harvard University, U. Michigan, UPC, Stanford University, UC Berkeley
Keynote talks at SOCC'16, PLDI'16, FCRC'11, SIGMOD'10, ASPLOS'09, ISLPED'08, IISWC'06, SBAC-PAD'03
National Academy of Engineering's Gilbreth Lectureship, 2012
See list of talks here
A 2012 Wired article interviews me on the concept of Warehouse Computing.
I play guitar and bass guitar in Catherine Warner's new album, Loss and Found.
In 2020 I received the 2020 Eckert-Mauchly Award, given by the ACM and the IEEE Computer Society for pioneering the design of warehouse-scale computing and driving it from concept to industry.
As technical lead of the Google Platforms team between 2010-2015, I started a project aimed at hardware acceleration of machine learning applications which resulted in the Tensor Processing Unit (TPU), a custom ASIC that powers several ML systems at Google, including image understanding from Street View.
I wrote the foreword for the 5th edition of Hennessy & Patterson's Computer Architecture: A quantitative approach, the classic textbook on computer architecture which was first printed when I was a graduate student.
Co-authored the NRC report: The Future of Computing Performance: Game Over or Next Level?, which describes how underlying circuit technology is no longer yielding the year-over-year improvements we have been accustomed to since Moore's law was "enacted", and what that means to the future of computing.
A short essay on innovation that I wrote for an internal Google audience was subsequently published in Google's re:Work blog. See The Roofshot Manifesto. It was then added to the 2nd edition of E.Schmidt's and J.Rosenberg's How Google Works.
I co-wrote the official SIGARCH/TCCA best practices document for ISCA program chairs.
I was the guest co-editor of IEEE Micro Jul/Aug 2010 special issue on Datacenter-scale Computing
lab at my last name, dot org
1600 Amphitheatre Parkway, Mountain View, CA 94043