The Cray X1 is a non-uniform memory access, vector processor supercomputer manufactured and sold by Cray Inc. since 2003. The X1 is often described as the unification of the Cray T90, Cray SV1, and Cray T3E architectures into a single machine. The X1 shares the multistreaming processors, vector caches, and CMOS design of the SV1, the highly ...

The Cray X1 is a scalable vector system [3]; characterized by high-speed custom vector processors, high-memory bandwidth, and a high-bandwidth interconnect linking the nodes. The efficiency of the processors in the Cray X1 is anticipated to be comparable to …

The Cray X1E supercomputer and its predecessor, the Cray X1™ supercomputer, are the first vector systems designed to scale to thousands of processors in a single system image. The Cray X1E system builds on the success of the Cray X1 system by adding advanced, binary compatible, dual-core processors

Cray X1 Overview, Copyright 2002-3, Cray Inc. 16 Address Translation • High translation bandwidth: scalar + four vector translations per cycle per P • Source translation using 256 entry TLBs with support for multiple page sizes • Remote (hierarchical) translation: – allows each node to manage its own memory (eases memory mgmt.)

The Cray X1 system, designed to be the world’s most powerful supercomputer product, features ultra-fast (12.8 gigaflops) individual processors, up to 819 gigaflops of peak computing power in a single chassis, and a high-bandwidth, low-latency interconnect for substantially more efficient scaling than on clustered SMP systems. The

In this paper, we compare the performance of the recently-released Cray X1 vector system with that of the cacheless NEC SX-6 vec-tor machine, and the superscalar cache-based IBM Power3 and Power4 architectures for scientific applications.

Cray X1 systems utilize powerful vector processors, shared memory, and a modernized vector instruction set in a highly scalable configuration to provide the computational power required for advanced scientific and engineering