The Cray XT5 is an updated version of the Cray XT4

supercomputer A supercomputer is a computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second ( FLOPS) instead of million instructions ...

, launched on November 6, 2007. It includes a faster version of the XT4's SeaStar2 interconnect router called SeaStar2+, and can be configured either with XT4 compute blades, which have four dual-core AMD Opteron processor sockets, or XT5 blades, with eight sockets supporting dual or quad-core Opterons. The XT5 uses a 3-dimensional torus network topology.

XT5 family

The XT5 family run the

Cray Linux Environment UNICOS is a range of Unix and after it Linux operating system (OS) variants developed by Cray for its supercomputers. UNICOS is the successor of the Cray Operating System (COS). It provides network clustering and source code compatibility layers ...

, formerly known as

UNICOS UNICOS is a range of Unix and after it Linux operating system (OS) variants developed by Cray for its supercomputers. UNICOS is the successor of the Cray Operating System (COS). It provides network clustering and source code compatibility la ...

/lc. This incorporates

SUSE Linux Enterprise Server SUSE Linux Enterprise (often abbreviated to SLE) is a Linux-based operating system developed by SUSE. It is available in two editions, suffixed with Server (SLES) for servers and mainframes, and Desktop (SLED) for workstations and desktop compu ...

and Cray's

Compute Node Linux Compute Node Linux (CNL) is a runtime environment based on the Linux kernel for the Cray XT3, Cray XT4, Cray XT5, Cray XT6, Cray XE6 and Cray XK6 supercomputer systems based on SUSE Linux Enterprise Server. CNL forms part of the Cray Linux E ...

. The XT5h (''hybrid'') variant also includes support for Cray X2 vector processor blades, and Cray XR1 blades which combine Opterons with

FPGA A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturinghence the term '' field-programmable''. The FPGA configuration is generally specified using a hardware de ...

-based Reconfigurable Processor Units (RPUs) provided by DRC Computer Corporation. The XT5m variant is a mid-ranged supercomputer with most of the features of the XT5, but having a 2-dimensional torus network topology and scalable to 6 cabinets. In the fall of 2008, Cray delivered the

Jaguar The jaguar (''Panthera onca'') is a large cat species and the only living member of the genus '' Panthera'' native to the Americas. With a body length of up to and a weight of up to , it is the largest cat species in the Americas and the th ...

1.3 petaflops XT5 system to National Center for Computational Sciences at Oak Ridge National Laboratory. The system, with over 150,000 processing cores, was the second fastest system in the world for the LINPACK benchmark, the fastest system available for open science and the first system to exceed a petaflops sustained performance on a 64-bit scientific application. Jaguar underwent an upgrade to 224,256 cores in 2009, after which its performance jumped to 1.75 petaflops, taking it to the number one position in the 34th edition of the TOP500 list in fall 2009. It remained number one in the June 2010 edition,TOP500 June 2010
/ref> but in October 2010 was surpassed by the Chinese Tianhe-1A, which achieved a performance of 2.57 petaflops. Another XT5 system,

Kraken The kraken () is a legendary sea monster of enormous size said to appear off the coasts of Norway. Kraken, the subject of sailors' superstitions and mythos, was first described in the modern age at the turn of the 18th century, in a travelogu ...

, with 112,896 cores and 1.17 petaflops, as of June 2012 was at position number 21 in the TOP500 list.

References

External links

Cray Introduces Next-Generation Supercomputers

Cray Linux Environment
{{DEFAULTSORT:Cray Xt5 Xt5 Petascale computers X86 supercomputers