dr dobbs report zpwnewsletterssdmediagroupcom dr dobbs updatejanuary 1 2001 editors note feel like mhz editor ehz world putting mhz 106 long im getting used ghz 109 find numbing institute advanced architectures set sights ehz 1018 scale computing thats 1 million trillion calculations per second whos counting another way put perspective exaflop thousand times faster petaflop petaflop thousand times faster teraflop teraflop lot faster 17 mhz trs80 model whole lot faster take word course institute advanced architectures joint project sandia oak ridge national labs isnt quite yet take years started ehz computer look like think paralleland big way ehzscale computer likely tens thousands cores beckandcall technological challenges one big challenge whats called mismatch data movement processing speeds sandia computer architect doug doerfler explains exascale computer data might tens thousands processors away processor wants processor gets data nothing useful one key scalability make sure processors something work times theres also power problem electricity needed power ehz computer tens megawattsand today megawatt cost much million dollars year youve holding back buying new laptop 2ghz centrino duo processor offchance ehz laptop might right around corner jonathan erickson womjcgkeaddjcom new features economic models manycore processors impact manycore processors goes beyond technical issues rakesh explains also change economic model cpus bought sold news microsoft promises greater interoperability microsoft today announced initiative aimed increasing interoperative capabilities products intel delivers eightcore platform dual processor platform fastest desktop pc weve ever tested labs blogs microsoft loves java microsofts recent acquisition activity brings lot javabased software expertise well large javafocused customer basehere go good worm debate new paper milan vojnovic varun gupta thomas karagiannis christos gkantsidis microsoft research examining best ways propagating information across network resurrected oftdiscredited idea good viruses spreading peace harmony security patches across computer networkscareer center software developer go ahead software seeking software developer bellevue wa embedded systems software architect videology seeking embedded systems software architect greenville ri electrical systems engineer 5 boeing seeking electrical systems engineer 5 huntsville al software performance engineer hewlett packard seeking software performance engineer cupertino ca sr solution architect mentor graphics seeking sr solution architect waltham interested posting positions us learn contact us today advertising information information advertising dr dobbs update newsletter contact account managers httpwwwddjcomadvertise copyright 2007 cmp technology llc 600 harrison street san francisco ca 94107 cmp technologys privacy policy httpwwwcmpcomdeliveryprivacyhtml problems newsletter please contact ocv_xcckcmpcom email address 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explore four javabased approaches implications download today want learn latest embedded technology options market oracle vp embedded technologies mike olson overviews multitude embedded technology options available customers partners well appropriate use caseslisten podcast free robotics whitepaper realtime robotic animation massive maya realtime c framework best practices customizing massive maya building realtime c robotics framework using recursions c toolkitdownload microsoft silverlight netseminar series light web microsoft silverlight crossbrowser crossplatform plugin delivering next generation netbased media experiences rich interactive applications web learn technology enabling new world media experiences udcatmailabuseorg sat apr 26 154855 2008 message 2 date fri 15 feb 2008 182805 0800 douglas otis subject ietfdkim issue 1547 ssp02 mx record publishing mandateto reduce dns overhead ssp discovery detectfraudulent messages damon cc mh michael hammer 5304 dkim list messageid 67ce94068e3940e4a497203dd6e57ac4mailabuseorg contenttype textplain charsetusascii formatflowed delspyes feb 15 2008 349 pm damon wrote case need tie breaker 1 summarize bunch 1 says little push back generated concept dkim policy applicable transport protocols might bridged smtp protocol bridging could become problematic email supported natively transmitting domain course also creates problems respect dsns well ignoring problem dsns mandating support smtp accepting smtp message bridged different transport would rather problematic smtp also supported however accepting messages smtp represents choice opens avenue likely permit abuse concern seems somewhat ill founded determining support relevant transport protocol could generally stated using absence protocol discovery record mx case smtp conjunction presence dkim policy record offered means indicate support specific protocol supported means truncate policy discovery process subsequent validation transactions would better protected existing domains involved email traffic generated spoofed messages addition would offered extremely strong refutation fraudulent messages made existing domain strong evidence good thing general settle issue protocol covered dkim policy jim suggested policy scope tag instead would permit domains indicate transport protocols implemented dkim signal dkim policy applied gateways smtp means disavow support transport protocol could important means better limit avenues abuse case message bridged smtp likely find smtp policy applied imho cant helped protocol scope parameter dkim policy could im smtp abuse limited smtp ability clearly indicate whether message fraudulent without incurring additional transactions also important general domain protection standpoint jim right policy made include scope also offers flexible workable solution message abuse demand negotiated changes accommodated extent policy assertions keeping lid added overhead represents remaining challenged doug thu 07 aug 2008 194443 0500 feel like mhz editor ehz world