* The list shows again a major shake-up of the TOP10
* Only six of the TOP10 systems from November 2004 are still large enough to hold on to a TOP10 position, four new systems entered the top tier.
* The new and previous No. 1 is DOE's IBM BlueGene/L system, installed at DOE’s Lawrence Livermore National Laboratory (LLNL). It has doubled in size (again) and has now achieved a record Linpack performance of 280.6 TFlop/s. It is still the only system ever to exceed the 100 TFlop/s mark.
* The No. 2 is a similar but smaller IBM eServer Blue Gene Solution system, installed at IBM’s Thomas Watson Research Center with 91.20 TFlop/s Linpack performance.
* The new No. 3 is the ASCI Purple system at LLNL, also built by IBM , but based on the pSeries 575 servers. It reached 63.4 TFlop/s.
* The Columbia system at NASA/Ames built by SGI slipped to the No. 4 spot, with a still equally impressive 51.87 TFlop/s.
* Two systems at DOE’s Sandia National Laboratories occupy Nos. 5 and 6. A new PowerEdge-based Dell system outperformed the enlarged ASCI Red Storm system by a narrow margin with 36.10 Tflops/s versus 35.86 Tflop/s.
* The Earth Simulator, built by NEC, which held the No. 1 spot for five lists, has now slipped to No. 7.
* The No. 10 spot is occupied by a Cray XT3 system at DOE’s Oak Ridge National Laboratory with 20.53 Tflop/s. This is also the new entry level for the TOP10, up from just under 10 TFlop/s Linpack performance one year ago.
![](http://www.top500.org/lists/2005/11/rotation/rotate.php)
![](http://www.top500.org/lists/2005/11/charts/4/p/Countries.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Application_Area.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Manufacturer.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Processor_Family.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Processor_Generation.png)
The list: http://www.top500.org/lists/2005/11/basic
#1 is BlueGene/L (131,072 processors; 280 TFLOPS) - DOE/LLNL
#2 is BlueGene Solution (40,960 processors; 91.2 TFLOPS) - IBM (private)
#3 is ASC Purple (10,240 processors; 63.3 TFLOPS) - DOE/LLNL
* Only six of the TOP10 systems from November 2004 are still large enough to hold on to a TOP10 position, four new systems entered the top tier.
* The new and previous No. 1 is DOE's IBM BlueGene/L system, installed at DOE’s Lawrence Livermore National Laboratory (LLNL). It has doubled in size (again) and has now achieved a record Linpack performance of 280.6 TFlop/s. It is still the only system ever to exceed the 100 TFlop/s mark.
* The No. 2 is a similar but smaller IBM eServer Blue Gene Solution system, installed at IBM’s Thomas Watson Research Center with 91.20 TFlop/s Linpack performance.
* The new No. 3 is the ASCI Purple system at LLNL, also built by IBM , but based on the pSeries 575 servers. It reached 63.4 TFlop/s.
* The Columbia system at NASA/Ames built by SGI slipped to the No. 4 spot, with a still equally impressive 51.87 TFlop/s.
* Two systems at DOE’s Sandia National Laboratories occupy Nos. 5 and 6. A new PowerEdge-based Dell system outperformed the enlarged ASCI Red Storm system by a narrow margin with 36.10 Tflops/s versus 35.86 Tflop/s.
* The Earth Simulator, built by NEC, which held the No. 1 spot for five lists, has now slipped to No. 7.
* The No. 10 spot is occupied by a Cray XT3 system at DOE’s Oak Ridge National Laboratory with 20.53 Tflop/s. This is also the new entry level for the TOP10, up from just under 10 TFlop/s Linpack performance one year ago.
![](http://www.top500.org/lists/2005/11/charts/4/p/Countries.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Application_Area.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Manufacturer.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Processor_Family.png)
![](http://www.top500.org/lists/2005/11/charts/4/p/Processor_Generation.png)
The list: http://www.top500.org/lists/2005/11/basic
#1 is BlueGene/L (131,072 processors; 280 TFLOPS) - DOE/LLNL
#2 is BlueGene Solution (40,960 processors; 91.2 TFLOPS) - IBM (private)
#3 is ASC Purple (10,240 processors; 63.3 TFLOPS) - DOE/LLNL
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