petaflop

plural petaflops

1. Either of two units of measure of the calculating speed of a computer:
   1. computinga quadrillion (10¹⁵) floating point operations per second.

      Summit's speed is 200 petaflops—that's 200 million billion calculations per second.

      2019, Susan Schneider, Artificial You: AI and the Future of Your Mind, Princeton University Press, page 11

      1 more example

      ...a better machine is a petaflop machine. A petaflop is a quadrillion flops, a quadrillion floating-point operations per second, so a petaflop machine is a thousand times as fast as a teraflop machine, or a million times as fast as a Cray Y-MP8. The petaflop machine will exist by the year 2000, or soon afterward.

      1992 March 2, Richard Preston, “The Mountains of Pi”, in The New Yorker

   2. computing1,125,899,906,842,624 (2⁵⁰) floating point operations per second.

      First computer to surpass the 1 Petaflop (2⁵⁰ FLOPS) barrier [in 2008]

      2012 Fall, Edgar Gabriel, COSC 6374 — Parallel Computation: Introduction and Organizational Issues, slide 20: “IBM Roadrunner”