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SUMMARY:Processors for the Data Center and Cloud of the Future - David Wen
 tzalff\, Princeton University
DTSTART:20170505T090000Z
DTEND:20170505T100000Z
UID:TALK72552@talks.cam.ac.uk
CONTACT:Robert Mullins
DESCRIPTION:Current-day data centers and IaaS clouds (e.g. Amazon EC2\, MS
  Azure\, Google GCE) use microprocessors that are very similar to or the s
 ame as those used in small servers and desktops.  This work rethinks the d
 esign of microprocessors specifically for data center use along with how m
 icroprocessors are affected by the novel economic models that have been po
 pularized by IaaS clouds.  This talk will describe several architectural c
 hanges including how a processor can be decomposed into sub-components (e.
 g. ALU\, Cache\, Fetch Unit) that can be individually rented in IaaS cloud
 s\, how running similar programs can be taken advantage of in the data cen
 ter\, how architectural features such as the flavor of memory bandwidth (b
 ursty vs. bulk) can be provisioned and sold in the data center\, and novel
  memory architectures that enable the creation of sub-coherence domains of
  cache coherence across the data center.\n\nThis work has not only been si
 mulated\, but many of the discussed ideas have been implemented in one of 
 the largest academic processors ever built\, the Princeton Piton Processor
 .  Piton is a 25-core manycore built in IBM's 32nm process technology cont
 aining over 460 Million transistors and runs full stack Debian Linux with 
 networking. This talk will discuss Piton along with what it takes to tape-
 out a complex microprocessor in an academic setting.  Last\, Piton has bee
 n recently open sourced as the OpenPiton (http://www.openpiton.org) projec
 t which is a expandable manycore platform which includes RTL\, thousands o
 f tests\, and implementation scripts.  The talk will conclude by discussin
 g how OpenPiton is able to contribute to the burgeoning field of open sour
 ce hardware.\n\nBio:\n\nDavid Wentzlaff is an Assistant Professor at Princ
 eton University in the Electrical Engineering Department. Before joining P
 rinceton\, he completed his PhD and MS at MIT and was Lead Architect and F
 ounder of Tilera Corporation\, a multicore chip manufacturer now owned by 
 Mellanox. Before Tilera\, he was one of the architects of the Raw Processo
 r at MIT and designed the Raw on-chip networks. David founded the MIT Fact
 ored Operating System (fos) project which focused on designing scalable op
 erating systems for thousand core multicores and cloud computers.  His wor
 k has been awarded the NSF CAREER award\, the DARPA Young Faculty Award\, 
 the AFOSR Young Investigator Prize\, and the Princeton E. Lawrence Keyes F
 aculty Advancement Award.  David teaches the world's first Massively Open 
 Online Course (MOOC) in Computer Architecture offered through Coursera.  D
 avid's current research interests include how to create manycore microproc
 essors customized specifically for future data centers and Cloud computing
  environments and how to reduce the impact of computing on the environment
  by optimizing computer architecture for fully biodegradable substrates. H
 e enjoys hiking and mountaineering when not designing multicore processors
 .
LOCATION:FW11\, Computer Laboratory
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