PINE: Photonic Integrated Networked Energy efficient datacenters (ENLITENED Program) [Invited]
Madeleine Glick, Nathan Abrams, Qixiang Cheng, Min Yee Teh, Yu‐Han Hung, Oscar A. Jimenez Gordillo, Songtao Liu, Yoshitomo Okawachi, Xiang Meng, Leif Johansson, Manya Ghobadi, Larry Dennison, George Michelogiannakis, John Shalf, Alan Liu, John E. Bowers, Alex Gaeta, Michal Lipson, Keren Bergman
Abstract
We review the motivation, goals, and achievements of the Photonic Integrated Networked Energy efficient datacenter (PINE) project, which is part of the Advanced Research Projects Agency–Energy (ARPA-E) ENergy-efficient Light-wave Integrated Technology Enabling Networks that Enhance Dataprocessing (ENLITENED) program. The PINE program leverages the unique features of photonic technologies to enable alternative mega-datacenters and high-performance computing (HPC) system architectures that deliver more substantial energy efficiency improvements than can be achieved through link energy efficiency alone. In phase 1 of the program, the PINE system architecture demonstrated an average factor of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mn>2.2</mml:mn></mml:mrow><mml:mo>×</mml:mo></mml:math> improvement in transactions/joule across a diverse set of HPC and datacenter applications. In phase 2, PINE will demonstrate an aggressive 1.0 pJ/bit total link budget with high-bandwidth-density dense wavelength-division multiplexing (DWDM) links to enable additional <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mn>2.5</mml:mn></mml:mrow><mml:mo>×</mml:mo></mml:math> or more efficiency gains through deep resource disaggregation.