
Milky Way-2, also known as "Tianhe-2," clusters together more than 32,000 Intel Xeon microprocessors as well as more than 48,000 Intel Xeon Phi chips, the server equivalent of a graphics coprocessor. All told, the two groups of chips can crunch the equivalent of 33.86 petaflops of performance, about double that of Titan, housed at the Oak Ridge National Laboratory in Tennessee. A "flop" is a floating point operation, one of the basic metrics of a computer performance; a petaflop is a thousand trillion floating point operations.
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