Also found in: Acronyms, Encyclopedia, Wikipedia.


 (pĕt′ə-flŏps′) or pet·a·flop (-flŏp′)
n. pl. petaflops
A measure of computing speed equal to one quadrillion floating-point operations per second.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a measure of processing speed, consisting of 1015 floating-point operations a second
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?
References in periodicals archive ?
Using 68,544 SPARC64 VIIIfx 8-core CPUs, with an absolute computing power rating of 8.16 petaflops, this recently ascended to the summit of the Top500 list as the world's most powerful supercomputer.
Tianhe-1A, a new supercomputer revealed today at HPC 2010 China, has set a new performance record of 2.507 petaflops, as measured by the LINPACK benchmark, making it the fastest system in China and in the world today .
Roadrunner posted a top performance of 1.059 petaflops in running the Linpack benchmark application.
In a demonstration that there's no speed limit on the information superhighway, IBM announced last week that, in association with Los Alamos National Laboratory in New Mexico, it has built the first supercomputer to break the petaflop barrier - one thousand trillion calculations per second.
The computer, in a two-hour test on May 25, achieved a "petaflop" speed of sustained performance, something no other computer had ever done.
Following are invited talk abstracts on petaflop computing, telemedicine and its usage in India, fair routing and related optimization problems, cryptography and security, and handwriting recognition.
The supercomputer will be scaled to run continuously at one petaflop, with occasional speeds reaching three petaflops.
At the time of the launch the computers will have the capacity of half petaflop to 20 petaflop and at its full peak, the speed will go up to 50 petaflop.
A petaflop is the ability of a computer to carry out one quadrillion floating point operations per second.
Only the most hardened geeks remember which computer first passed the 2 petaflop mark -- because only they care what a petaflop is or know why it matters -- but quite a few people know that computers long ago learned to beat the snot out of the average Moe, Larry, or Curly at chess.