Reddit did an AMA http://www.reddit.com/r/IAmA/comments/fnfg3/by_request_we_are_the_ibm_research_team_that/
On Thu, Feb 17, 2011 at 10:30 PM, Jim Doherty <[email protected]>wrote: > On 2/17/2011 3:51 PM, Luther Woodrum wrote: > >> >> >> On Thu, 17 Feb 2011, Cranky Frankie wrote: >> >> - When you see Watson being rack after rack of servers, for an >>> old-timer like me who remembers the mainframes, it's still kind of a >>> shock. >>> >> >> Not so much any more. Even the dinky little 12 core machine I am putting >> together can have up to 256G of memory. But I'm only starting with 16G, >> and upgrade later to 64G when it's time to start running production. >> >> Speaking of memory, in 1987, when I retired from IBM, only one >> mainframe in Pok had more than 16MB of memory, and it was 32MB. >> None of the other msinframes had more than 16MB. >> >> On my 80287 pc, I had 16MB of memory, and ran APL, which used it all >> in one workspace. I was able to read in 150,000 line listing files >> and do string seraches on the entire collection. It saved me an >> enormous amount of time. >> >> - You wonder if the OS was AIX, their version of Unix, or something else. >>> >> >> AIX 6.x drives the powerpc. >> >> > NCSA picked Linux for their Blue Waters POWER7 super computer. > > > Jim > > > - Clearly they had everything indexed and in core, but you wonder what >>> the database architecture was: - relational as in some version of DB2, >>> or hierarchical like IMS or even XML, or a linked list, or something >>> built one-off for this like Google's "Big Table" >>> >> >> I don't think you will find any linked lists in there. >> The 100+ powerpcs have a combined memory of about 15 TB. >> It is all in memory. >> >> Each powerpc, at least 32 core, has at least 256G of memory. >> >> Lex >> _______________________________________________ >> Mid-Hudson Valley Linux Users Group http://mhvlug.org >> http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug >> >> Upcoming Meetings (6pm - 8pm) MHVLS Auditorium >> Mar 2 - MHVLUG 8th Anniversary - Show and Tell >> Apr 6 - Introduction to IPv6 >> May 4 - Inkscape >> >> >> > _______________________________________________ > Mid-Hudson Valley Linux Users Group http://mhvlug.org > http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug > > Upcoming Meetings (6pm - 8pm) MHVLS Auditorium > Mar 2 - MHVLUG 8th Anniversary - Show and Tell > Apr 6 - Introduction to IPv6 > May 4 - Inkscape > -- Regards, Jesse K. Ziter JKZfixme.com (845) 476-8094
_______________________________________________ Mid-Hudson Valley Linux Users Group http://mhvlug.org http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug Upcoming Meetings (6pm - 8pm) MHVLS Auditorium Mar 2 - MHVLUG 8th Anniversary - Show and Tell Apr 6 - Introduction to IPv6 May 4 - Inkscape
