For the purpose of conducting point basic operating tests and design-performance checks, the system was tested on October 7 -8, using the LINPACK
benchmarking program and measured processing speeds of 10.
benchmark program, running on the part of the system that employs 68,544 CPUs installed on the K computer being configured, recorded the world's top performance of 8.
Twice each year since 1993, the TOP500 Supercomputer organization publishes its list of the 500 most powerful computer systems based on the LINPACK
performance benchmark that measures performance among all classes of supercomputers.
Making up the Large-scale Parallel Computation Unit at the heart of the system, the PRIMERGY BX900 servers were benchmarked using LINPACK
and achieved a result that would place the new system first among the Japanese entries posted on the most recent TOP500 list (November 2009 edition) of supercomputers, and 19th in the world.
SGI systems represent seven of the 11 systems with a LINPACK
efficiency of greater than 90 percent
The semi-annual Top500 Supercomputer Sites list determines its rankings based on the LINPACK