dan werthimer university of california, berkeley
DESCRIPTION
Is Anybody Out There? Embarrasingly Parallel Volunteer Computing Searching for ET and Transients with SETI@home Volunteers. Dan Werthimer University of California, Berkeley. http:// seti.berkeley.edu. SETI before FPGA’s. NOT FUNDED. NOT FUNDED. NOT FUNDED. Porno in space: FUNDED!. - PowerPoint PPT PresentationTRANSCRIPT
Is Anybody Out There?Embarrasingly Parallel Volunteer Computing
Searching for ET and Transients with SETI@home Volunteers
Dan Werthimer Dan Werthimer University of California, BerkeleyUniversity of California, Berkeley
http://seti.berkeley.eduseti.berkeley.edu
SETI before SETI before FPGA’sFPGA’s
NOT FUNDED
NOT FUNDED
NOT FUNDED
Porno in space:
FUNDED!
First Radio SETIFirst Radio SETI
• Nikola Tesla (1899)Nikola Tesla (1899)
– Announces “coherent signals from Mars”Announces “coherent signals from Mars”
• Guglielmo Marconi (1920)Guglielmo Marconi (1920)
– Strange signals from ETStrange signals from ET
• Frank Drake (1960)Frank Drake (1960)
– Project Ozma Project Ozma
– one channel, 1420-1420.4 MHzone channel, 1420-1420.4 MHz
Radio - Targeted Search StrategyRadio - Targeted Search Strategy
Project Phoenix - Seti InstituteProject Phoenix - Seti Institute
Radio - Sky Survey StrategyRadio - Sky Survey Strategy
Serendip, SETI@home - UC BerkeleySerendip, SETI@home - UC Berkeley
Southern Serendip - AustraliaSouthern Serendip - Australia
Meta II - ArgentinaMeta II - Argentina
Seti Italia - BolognaSeti Italia - Bologna
Optical - TargetedOptical - Targeted
UC Berkeley - Pulse and ContinuousUC Berkeley - Pulse and Continuous
Lick Observatory – PulseLick Observatory – Pulse
Harvard – Pulse, Sky survey 2006Harvard – Pulse, Sky survey 2006
Berkeley SETI GroupBerkeley SETI Group
David Anderson, Bob Bankay, Henry Chen, Jeff Cobb, David Anderson, Bob Bankay, Henry Chen, Jeff Cobb,
Josh Von Korff, Eric Korpela, Matt Lebofsky,Josh Von Korff, Eric Korpela, Matt Lebofsky,
Andrew Siemion, Dan Werthimer, Andrew Siemion, Dan Werthimer, Shelley WrightShelley Wright
NSF , NASA, Individual DonorsNSF , NASA, Individual Donors
Agilent, Fujitsu, HP, Intel, Sun, Xilinx Agilent, Fujitsu, HP, Intel, Sun, Xilinx
UC Berkeley SETI UC Berkeley SETI ProgramsPrograms
NameName Time ScaleTime Scale Search TypeSearch Type
SERENDIPSERENDIP secondsseconds radio sky radio sky surveysurvey
SETI@homeSETI@home mS - secondsmS - seconds radio sky radio sky surveysurvey
AstropulseAstropulse nS - mSnS - mS radio sky radio sky surveysurvey
SEVENDIPSEVENDIP nSnS visible visible targettedtargetted
SPOCKSPOCK 1000 seconds1000 seconds visible visible targettedtargetted
DYSONDYSON IR targettedIR targetted
SERENDIP IVSERENDIP IV
• 168M channels
• 100 MHz Band centered on 1420 MHz
Photos Courtesy NAIC Arecibo Observatory, a facility of the NSFPhotos Courtesy NAIC Arecibo Observatory, a facility of the NSF
Data storage: NERSC HPSSData storage: NERSC HPSS
(Naional Energy Research Scientific Computing (Naional Energy Research Scientific Computing Center)Center)
The SETI@home ClientThe SETI@home Client
8,464,550 participants (in 226 countries)
2,000 per day
2.3 million years computer time
1,200 years per day
4*1021 floating point operations
200 Tera-flops
SETI@home Statistics
TOTAL RATE
Web site: 2 million hits/dayWeb site: 2 million hits/day 200,000 visitors/day 200,000 visitors/day
(stats & games popular; science less (stats & games popular; science less
popular)popular)
100,000 children, families100,000 children, families (including congress members and their kids)(including congress members and their kids)
> 7,000 schools> 7,000 schools
Desired SKA ParametersDesired SKA Parameters
• Wide bandwidthWide bandwidth
• 1 M beams1 M beams
• fat beamsfat beams
• short dwell times (~ 100 seconds)short dwell times (~ 100 seconds)
Gaussian CandidatesGaussian Candidates
Public Participation Supercomputing GroupPublic Participation Supercomputing Group
David Anderson, Rom Walton, SETI GroupDavid Anderson, Rom Walton, SETI Group
• aka Distributed Computingaka Distributed Computing
• aka “edge resource aggregation”)aka “edge resource aggregation”)
BOINC:BOINC: NSF NSF
• Berkeley Open Berkeley Open Infrastructure for Network Infrastructure for Network ComputingComputing
– General-purpose distributed General-purpose distributed computing framework.computing framework.
– Open source.Open source.
– Will make distributed Will make distributed computing accessible to computing accessible to those who need it. (Starting those who need it. (Starting from scratch is hard!)from scratch is hard!)
ProjectsProjects• AstronomyAstronomy
– SETI@home (Berkeley) SETI@home (Berkeley)
– Astropulse (Berkeley)Astropulse (Berkeley)
– Einstein@home: gravitational pulsar search (Caltech,…)Einstein@home: gravitational pulsar search (Caltech,…)
– PlanetQuest (SETI Institute)PlanetQuest (SETI Institute)
– Stardust@home (Berkeley, Univ. Washinton,…)Stardust@home (Berkeley, Univ. Washinton,…)
• Earth scienceEarth science
– Climateprediction.net (Oxford)Climateprediction.net (Oxford)
• Biology/MedicineBiology/Medicine
– Folding@home, Predictor@home (Stanford, Scripts)Folding@home, Predictor@home (Stanford, Scripts)
– FightAIDSathome: virtual drug discoveryFightAIDSathome: virtual drug discovery
• PhysicsPhysics
– LHC@home (Cern)LHC@home (Cern)
• OtherOther
– Web indexing/searchWeb indexing/search
– Internet Resource mapping (UC Berkeley)Internet Resource mapping (UC Berkeley)
Rosetta ScreensaverRosetta Screensaver
Where's the computing power?
●2010: 1 billion Internet-connected PCs
●55% privately owned
● If 100M participate:
– 100 PetaFLOPs, 1 Exabyte (10^18) storage
your computers
academic
business
home PCs
Moores Law – Instruments using FPGA’s: 2X per year(1,000,000 over 20 years)
Future SpectrometersFuture Spectrometers
2015 4 THz 400 beams 10 GHz each
2020 128 THz 12,800 beams
2025 4000 THz 40,000 beams
2030 128,000 THz 1M beams
Summary and Summary and ConclusionConclusion
•No ET’s so farNo ET’s so far
•Still working on itStill working on it
SETI HAIKUSETI HAIKU
Searching for lifeSearching for lifeAnswers are revealedAnswers are revealedAbout ourselvesAbout ourselves
Paula Cook, Duke UniversityPaula Cook, Duke University
One million earthlingsOne million earthlingsBounded by optimismBounded by optimismLeave their PC’s onLeave their PC’s on
Dan SeidnerDan Seidner
Thanks toThanks to
• Jeff MockJeff Mock
• Henry Chen, Terry Filiba, Griffin Foster, Henry Chen, Terry Filiba, Griffin Foster, Billy Mallard, Jason Manley, Peter Billy Mallard, Jason Manley, Peter McMahon, Andrew Siemion, Laura Spitler, McMahon, Andrew Siemion, Laura Spitler, Mark Wagner, Mark Wagner,
• All of you All of you