Petascale computing

Cray XT5 Jaguar supercomputer, Oak Ridge Leadership Computing Facility

In computing, petascale refers to a computer system capable of reaching performance in excess of one petaflops, i.e. one quadrillion floating point operations per second. The standard benchmark tool is LINPACK and Top500.org is the organization which tracks the fastest supercomputers. Some uniquely specialized petascale computers do not rank on the Top500 list since they cannot run LINPACK. This makes comparisons to ordinary supercomputers hard.

Petascale can also refer to very large storage systems where the capacity exceeds one petabyte (PB).

Applications

Petascale computing is being used to do advanced computations in fields such as weather and climate simulation, nuclear simulations, cosmology, quantum chemistry, lower-level organism brain simulation, and fusion science.

Development

The National Science Foundation is responsible for initiating and funding several petascale computers in the USA, as well as DARPA who gave IBM the contract to develop the petascale PERCS (Productive, Easy-to-use, Reliable Computer System) platform.

China has developed three petascale computers, Nebulae, Tianhe-I and Tianhe-2.

Russia has developed the Lomonosov (rus) petascale computer.

Other countries, such as Germany and Japan, have plans of their own for petascale computers.

Petascale computers are under development from manufacturers such as Sun Microsystems, Cray, IBM, Dawning, SGI, and NEC.

Active

As of 2012, these are the known active petascale computers in the world.

The first 20 supercomputers on the June 2012 list are petascale.

Other

Under construction

Platform examples

See also

References

  1. National Center for Computational Sciences (NCCS) (2010). "World's Most Powerful Supercomputer for Science!". NCCS. Retrieved 2010-06-26.
  2. IBM Press Release (2009-02-10). "New IBM Petaflop Supercomputer at German Forschungszentrum Juelich to Be Europe's Most Powerful". IBM Inc. Retrieved 2010-06-26.

External links