[4] The system serves as NASA's largest supercomputing resource, supporting missions in aeronautics, human spaceflight, astrophysics, and Earth science.

[6] It originally contained 100 SGI Altix ICE 8200EX racks with 12,800 Intel Xeon quad-core E5472 Harpertown processors connected with more than 20 miles of InfiniBand double data rate (DDR) cabling.

[10] After another 14 ICE 8400 racks containing Westmere processors were added in 2011, Pleiades ranked seventh on the TOP500 list in June of that year at a LINPACK rating of 1.09 petaflops, or 1.09 quadrillion floating point operations per second.

[13] Each new Sandy Bridge node has four networking links using fourteen data rate (FDR) InfiniBand cable for a total transfer bandwidth of 56 gigabits (about 7 gigabytes) per second.

[17] In January 2015, additional Haswell nodes were installed and released to users, giving Pleiades a new peak theoretical processing capacity of 5.35 petaflops.