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- Cray_X1 abstract "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 scalable distributed memory design of the T3E, and the high memory bandwidth and liquid cooling of the T90.The X1 uses a 1.2 ns (800 MHz) clock cycle, and 8-wide vector pipes in MSP mode, offering a peak speed of 12.8 gigaflops per processor. Air-cooled models are available with up to 64 processors. Liquid-cooled systems scale to a theoretical maximum of 4096 processors, comprising 1024 shared-memory nodes connected in a two-dimensional torus network, in 32 frames. Such a system would supply a peak speed of 50 teraflops. The largest unclassified X1 system was the 512 processor system at Oak Ridge National Laboratory, though this has since been upgraded to an X1E system.The X1 can be programmed either with widely used message passing software like MPI and PVM, or with shared-memory languages like Unified Parallel C programming language or Co-array Fortran. The X1 runs an operating system called UNICOS/mp which shares more with the SGI IRIX operating system than it does with the UNICOS found on prior generation Cray machines.In 2005, Cray released the X1E upgrade, which uses dual-core processors, allowing two quad-processor nodes to fit on a node board. The processors are also upgraded to 1150 MHz. This upgrade almost triples the peak performance per board, but reduces the per-processor memory and interconnect bandwidth. X1 and X1E boards can be combined within the same system.The X1 is notable for its development being partly funded by United States Government's National Security Agency (under the code nameSV2).The X1 was not a financially successful product and it seems doubtful that itor its successors would have been produced without this support.".
- Cray_X1 thumbnail Phoenix_front_(410857426).jpg?width=300.
- Cray_X1 wikiPageExternalLink Legacy.aspx.
- Cray_X1 wikiPageExternalLink pap183.pdf.
- Cray_X1 wikiPageExternalLink cray_inc_x1e.
- Cray_X1 wikiPageID "6869559".
- Cray_X1 wikiPageLength "3088".
- Cray_X1 wikiPageOutDegree "28".
- Cray_X1 wikiPageRevisionID "596647723".
- Cray_X1 wikiPageWikiLink Bandwidth_(computing).
- Cray_X1 wikiPageWikiLink CMOS.
- Cray_X1 wikiPageWikiLink Category:Cray_products.
- Cray_X1 wikiPageWikiLink Category:Supercomputers.
- Cray_X1 wikiPageWikiLink Co-array_Fortran.
- Cray_X1 wikiPageWikiLink Coarray_Fortran.
- Cray_X1 wikiPageWikiLink Computer_memory.
- Cray_X1 wikiPageWikiLink Cray.
- Cray_X1 wikiPageWikiLink Cray_SV1.
- Cray_X1 wikiPageWikiLink Cray_T3E.
- Cray_X1 wikiPageWikiLink Cray_T90.
- Cray_X1 wikiPageWikiLink FLOPS.
- Cray_X1 wikiPageWikiLink Gigaflops.
- Cray_X1 wikiPageWikiLink IRIX.
- Cray_X1 wikiPageWikiLink Memory_(computers).
- Cray_X1 wikiPageWikiLink Message_Passing_Interface.
- Cray_X1 wikiPageWikiLink NSA.
- Cray_X1 wikiPageWikiLink National_Security_Agency.
- Cray_X1 wikiPageWikiLink Node_(networking).
- Cray_X1 wikiPageWikiLink Non-uniform_memory_access.
- Cray_X1 wikiPageWikiLink Oak_Ridge_National_Laboratory.
- Cray_X1 wikiPageWikiLink Operating_system.
- Cray_X1 wikiPageWikiLink Parallel_Virtual_Machine.
- Cray_X1 wikiPageWikiLink Silicon_Graphics.
- Cray_X1 wikiPageWikiLink Supercomputer.
- Cray_X1 wikiPageWikiLink Torus.
- Cray_X1 wikiPageWikiLink UNICOS.
- Cray_X1 wikiPageWikiLink Unicos.
- Cray_X1 wikiPageWikiLink Unified_Parallel_C.
- Cray_X1 wikiPageWikiLink Vector_processor.
- Cray_X1 wikiPageWikiLink File:Phoenix_front_(410857426).jpg.
- Cray_X1 wikiPageWikiLinkText "Cray X1".
- Cray_X1 wikiPageWikiLinkText "Cray_X1".
- Cray_X1 wikiPageWikiLinkText "X1".
- Cray_X1 hasPhotoCollection Cray_X1.
- Cray_X1 wikiPageUsesTemplate Template:Cray_computers.
- Cray_X1 wikiPageUsesTemplate Template:Reflist.
- Cray_X1 wikiPageUsesTemplate Template:Super-compu-stub.
- Cray_X1 wikiPageUsesTemplate Template:Use_mdy_dates.
- Cray_X1 subject Category:Cray_products.
- Cray_X1 subject Category:Supercomputers.
- Cray_X1 hypernym Access.
- Cray_X1 type AcademicJournal.
- Cray_X1 type Class.
- Cray_X1 type Product.
- Cray_X1 type Supercomputer.
- Cray_X1 comment "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.".
- Cray_X1 label "Cray X1".
- Cray_X1 sameAs Cray_X1.
- Cray_X1 sameAs Cray_X1.
- Cray_X1 sameAs m.0gthbb.
- Cray_X1 sameAs Q386218.
- Cray_X1 sameAs Q386218.
- Cray_X1 wasDerivedFrom Cray_X1?oldid=596647723.
- Cray_X1 depiction Phoenix_front_(410857426).jpg.
- Cray_X1 isPrimaryTopicOf Cray_X1.