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8/13/2019 SC13 Top500 Lists the World's Fastest Computers
http://slidepdf.com/reader/full/sc13-top500-lists-the-worlds-fastest-computers 1/2
C13: Top500 lists the world's fastest comp
uters
This year’s supercomputing conference, which is etter!"nown as C13 a
nd ta"es in place in #en$er this wee", egan with the announcement of t
he latest Top500 list of the world’s fastest computers% &ot much has chan
ged at the top since the list, which is updated twice a year, was last comp
iled%
China still holds the top with Tianhe! at the &ational upercomputer Ce
nter in (uang)ho, which has sustained performance of 33%*+ petaflops -
uadrillions of calculations per second.% /n fact, the top 5 systems remaine
d the same and there was only one new addition to the top 10, i) #aint,a Cray C30 system at the wiss &ational upercomputing Centre in 2uga
no% i) #aint also happen to e the most efficient among the top 10%
/4 and supply the ul" of these systems, followed y Cray% 6s in the
C world, /ntel dominates high!performance computing with more than *
percent of the systems on the list using /ntel eon ser$er processors% T
he rest use 64# 7pteron 8 percent., /4 ower * percent. or 69C%
The iggest change in recent years has een the adoption of accelerators
to oost performance on certain high!throughput, parallel wor"loads whi
le "eeping the power manageale% 7f the top 500 systems, 53 now use ac
celeratorsmostly &$idia's Tesla, though a couple ha$e 64# ;ire tream
and /ntel’s eon hi has een coming on strong since it was first announc
ed at the /nternational upercomputing Conference in mid!01%
<arlier today &$idia announced the Tesla =>0, its fastest oard to date fo
r general!purpose (? computing% /n comparison to the =0 which is
ased on the same =epler chip., the =>0 has more stream processor runni
ng at slightly faster speeds and twice as much memory 1(. pushing p
erformance to >%3 teraflops single!precision arithmetic and 1%> teraflops
on doule!precision math% &$idia also announced a deal with /4 to com
8/13/2019 SC13 Top500 Lists the World's Fastest Computers
http://slidepdf.com/reader/full/sc13-top500-lists-the-worlds-fastest-computers 2/2
ine Tesla (?s with ower!ased systems used for data analytics% / wou
ld not e surprised to hear announcements from 64# or /ntel this wee"
as well%
ut the rapid rise of accelerators may slow down than"s to some changes
in the wor"s% ;or two decades, the Top500 group has used a single test, t
he 2inpac" enchmar" which measures the performance sol$ing a dense
system of linear e-uations, to ran" the world’s fastest computers% 7$er ti
me this led organi)ations to de$elop systems!!most recently ones using a
ccelerators such as (?sdesigned to post the highest possile scores o
n 2inpac", e$en though this did not reflect the real!world performance o
n many high!performance applications%
/n @une, @ac" #ongarra, a computer science professor at the ?ni$ersity of
Tennessee who de$eloped 2inpac" and compiles the Top500 list, announc
ed a new enchmar" called the igh erformance ConAugate (radient
C(., designed to etter reflect the way many supercomputing applicatio
ns fetch data and wor" on it% /t will ta"e some time to phase!in!!and C
( won’t replace 2inpac"!!ut it should pro$ide a etter picture of the rea
l!world performance of the world’s top computers%