In its third run to knock the IBM supercomputer nicknamed “Roadrunner” off the top perch on the TOP500 list of supercomputers, the Cray XT5 supercomputer known as Jaguar finally claimed the top spot on the 34th edition of the list in November 2009. Jaguar was located at the Department of Energy’s Oak Ridge Leadership Computing Facility. Jaguar posted a Linpack performance of 1.759 petaflop/s and became only the second computer to break the petaflops barrier.
The Jaguar system went through a series of upgrades since installation as a 25-teraflop Cray XT3 in 2005. By early 2008, Jaguar was a 263-teraflop Cray XT4. In 2008, Jaguar was expanded with the addition of a 1.4-petaflop Cray XT5. By 2009, the resulting system had over 200,000 processing cores connected internally with Cray's Seastar2+ network. The XT4 and XT5 parts of Jaguar were combined into a single system using an InfiniBand network.
In June 2010, Jaguar maintained its position as the No. 1 system with its 1.759 petaflop/s Linpack performance, even though another system had a higher theoretical peak performance.
|1||Titan - Cray XK7 , Opteron 6274 16C 2.200GHz, Cray Gemini interconnect, NVIDIA K20x|
|2||Sequoia - BlueGene/Q, Power BQC 16C 1.60 GHz, Custom|
|3||K computer, SPARC64 VIIIfx 2.0GHz, Tofu interconnect|
|4||Mira - BlueGene/Q, Power BQC 16C 1.60GHz, Custom|
|5||JUQUEEN - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect|
|6||SuperMUC - iDataPlex DX360M4, Xeon E5-2680 8C 2.70GHz, Infiniband FDR|
|7||Stampede - PowerEdge C8220, Xeon E5-2680 8C 2.700GHz, Infiniband FDR, Intel Xeon Phi|
|8||Tianhe-1A - NUDT YH MPP, Xeon X5670 6C 2.93 GHz, NVIDIA 2050|
|9||Fermi - BlueGene/Q, Power BQC 16C 1.60GHz, Custom|
|10||DARPA Trial Subset - Power 775, POWER7 8C 3.836GHz, Custom Interconnect|