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Another former No. 1 on the Top500 list is Japan's K computer. It reached 10.51 Pflop/s on the Linpack benchmark using 705,024 SPARC64 processing cores.
The new Mira supercomputer at the Argonne National Laboratory ranked No. 3 on the Top 500 list. Its a new IBM/Blue Gene/Q system and hit 10.51 Pflop/s on the Linpack benchmark from 705,024 SPARC64 processing cores placed it fourth on the list.
Mira is used by from hundreds of companies, universities, and federal, state and municipal agencies.
Juqueen, upgraded to become the fastest supercomputer in Europe is housed in at the Leibniz Supercomputing Center near Munich, Germany. IBM iDataplex system which contains 155.000 cores and has a peak performance of 3 Petaflop/s.