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CATEGORIES:Computer Laboratory Wednesday Seminars
SUMMARY:Toward Energy-efficient Computing - David J. Brown
 \, Sun Microsystems Inc.
DTSTART;TZID=Europe/London:20090617T160000
DTEND;TZID=Europe/London:20090617T170000
UID:TALK18722AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/18722
DESCRIPTION:As a result of both the increased average power co
 nsumed by a single system\, and the rapid growth i
 n the number of total computer systems deployed\, 
 energy consumption by computers and related techno
 logies is growing at an exponential rate analogous
  to Moore's Law.  The use of energy has become a c
 onsequential factor in the design of contemporary 
 computer systems.\n\nThis talk frames the energy p
 roblem in general\, looking at its current implica
 tions in the computing space.  I'll introduce seve
 ral of the basic technologies that have been intro
 duced which may help us to manage power use on mod
 ern computing platforms\, then describe some recen
 t experience in their application as seen from my 
 vantage point at Sun.  The conclusion\, is that wh
 ile some of these mechanisms are enabling\, they s
 eem far from sufficient to realise optimal energy 
 use in computing. \n\nHow should the energy proble
 m be framed more specifically for computer system 
 designers?\n\nI will give a simple vision for ener
 gy-efficient computing\, and describe a number of 
 the elements that appear necessary if we are to so
 lve 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 Solaris o
 perating system's\n      core power management fac
 ilities\, with particular attention to\n      Sun'
 s x64 hardware platforms. Earlier at Sun he led th
 e Solaris\n      ABI program: a campaign to develo
 p and deliver a practical\n      approach to binar
 y compatibility for applications built on Solaris.
 \n\nBefore coming to Sun\, Dave was a member of th
 e research staff at\n      Stanford University\, w
 here he worked with Andy Bechtolsheim on the\n    
   prototype SUN Workstation\; later was a founder 
 of Silicon\n      Graphics\, where he developed ea
 rly system and network software and\n      designe
 d a floating point accelerator\; and subsequently\
 n      established the Workstation Systems Enginee
 ring Group for DEC in\n      Palo Alto along with 
 Steve Bourne\, where he built the team that\n     
  developed the graphics architecture applied in DE
 C's MIPS\n      workstations and the PixelStamp an
 d PixelVision subsystems.\n\nDave's technical back
 ground is computer systems (operating systems\n   
    and networking)\, and architecture with some sp
 ecific attention to\n      the design of high-perf
 ormance interactive graphics systems.\n\nDave rece
 ived a Ph.D. in Computer Science from Cambridge\n 
      University\, for a dissertation which introdu
 ced the "Unified\n      Memory Architecture" appro
 ach for the integration of high\n      performance
  graphics subsystems in a general-purpose computin
 g\n      architecture. This idea is now widely app
 lied\, notably in the\n      current Intel process
 or and memory system architecture.\n
LOCATION:Lecture Theatre 1\, Computer Laboratory
CONTACT:Mateja Jamnik
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