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SUMMARY:Toward Energy-efficient Computing - David J. Brown\, Sun Microsyst
 ems Inc.
DTSTART:20090617T150000Z
DTEND:20090617T160000Z
UID:TALK18722@talks.cam.ac.uk
CONTACT:Mateja Jamnik
DESCRIPTION:As a result of both the increased average power consumed by a 
 single system\, and the rapid growth in the number of total computer syste
 ms deployed\, energy consumption by computers and related technologies is 
 growing at an exponential rate analogous to Moore's Law.  The use of energ
 y has become a consequential factor in the design of contemporary computer
  systems.\n\nThis talk frames the energy problem in general\, looking at i
 ts current implications in the computing space.  I'll introduce several of
  the basic technologies that have been introduced which may help us to man
 age power use on modern computing platforms\, then describe some recent ex
 perience in their application as seen from my vantage point at Sun.  The c
 onclusion\, is that while some of these mechanisms are enabling\, they see
 m far from sufficient to realise optimal energy use in computing. \n\nHow 
 should the energy problem be framed more specifically for computer system 
 designers?\n\nI will give a simple vision for energy-efficient computing\,
  and describe a number of the elements that appear necessary if we are to 
 solve it along those lines.  Some likely avenues of research are suggested
 .\n\n\n*About the Author*\n\nDavid Brown is presently working on the Solar
 is operating system's\n      core power management facilities\, with parti
 cular attention to\n      Sun's x64 hardware platforms. Earlier at Sun he 
 led the Solaris\n      ABI program: a campaign to develop and deliver a pr
 actical\n      approach to binary compatibility for applications built on 
 Solaris.\n\nBefore coming to Sun\, Dave was a member of the research staff
  at\n      Stanford University\, where he worked with Andy Bechtolsheim on
  the\n      prototype SUN Workstation\; later was a founder of Silicon\n  
     Graphics\, where he developed early system and network software and\n 
      designed a floating point accelerator\; and subsequently\n      estab
 lished the Workstation Systems Engineering Group for DEC in\n      Palo Al
 to along with Steve Bourne\, where he built the team that\n      developed
  the graphics architecture applied in DEC's MIPS\n      workstations and t
 he PixelStamp and PixelVision subsystems.\n\nDave's technical background i
 s computer systems (operating systems\n      and networking)\, and archite
 cture with some specific attention to\n      the design of high-performanc
 e interactive graphics systems.\n\nDave received a Ph.D. in Computer Scien
 ce from Cambridge\n      University\, for a dissertation which introduced 
 the "Unified\n      Memory Architecture" approach for the integration of h
 igh\n      performance graphics subsystems in a general-purpose computing\
 n      architecture. This idea is now widely applied\, notably in the\n   
    current Intel processor and memory system architecture.\n
LOCATION:Lecture Theatre 1\, Computer Laboratory
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