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- Fireplane abstract "Fireplane is a computer internal interconnect created by Sun Microsystems.The Fireplane interconnect architecture is an evolutionary development of Sun's previous Ultra Port Architecture (UPA). It was introduced in October 2000 as the processor I/O interconnect in the Sun Blade 1000 workstation, followed in early 2001 by its use in the Sun Fire and Sun Fire 15K series enterprise servers. These coincided with the popular expansion of the web in the dot com boom and a shift of Sun's main market from Unix workstations to datacenter servers such as the Starfire, supporting high traffic web sites.Peak performance (in the Sun Blade 1000) reached 67.2 GBytes/second or a sustained 9.6 GB/s (2.4 GB/s for each processor).Each generation of Sun architecture had involved upgraded processors and matching upgrades to the bus or interconnect architectures that supported them. By this time, fast access to memory was becoming more important than simple CPU instruction speed for overall performance. Multiprocessors, shared memory, memory caching and switching between CPU and memory were technologies necessary to achieve this.The Sun Fire 15K series frame allows 18 combined processor and memory expander boards. Each board comprises four processors, four memory modules and I/O processors. The Fireplane interconnect uses 18×18 crossbar switches to connect between them. Overall peak bandwidth through the interconnect is 43 Gbytes per second.As memory architectures increase in complexity, maintaining cache coherence becomes a greater problem than simple connectivity. Fireplane represents a substantial advance over previous interconnects in this aspect. It combines both snoopy cache and point-to-point directory-based models to give a two-level cache coherence model. Snoopy buses are used primarily for single buses with small numbers of processors; directory models are used for larger numbers of processors. Fireplane combines both, to give a scalable shared memory architecture.Each expander board implements snooping across the board, with directory coherence across the interconnect. Each board is considered as a 'snooping coherence domain'. Small to mid-sized Fireplane systems, up to 24 processors, use a single coherence domain. Larger systems with more processors use multiple coherence domains across their backplane interconnect. Competing systems from makers such as SGI or the HP Superdome series use only a single level of coherency support and so require the more complex directory coherence to be used throughout.Fireplane used for smaller servers and workstations is optimised for their single domain performance. They use an increased system clock by 50% to 150 MHz. Snoops per clock cycle are also doubled from one half to one. Together these allow a snooping bandwidth of 150 million addresses per second.".
- Fireplane wikiPageExternalLink sun-jtf-280r.pdf.
- Fireplane wikiPageExternalLink sunfire.html.
- Fireplane wikiPageExternalLink m1036abs.htm.
- Fireplane wikiPageExternalLink 40.988688.
- Fireplane wikiPageID "1458304".
- Fireplane wikiPageLength "5992".
- Fireplane wikiPageOutDegree "23".
- Fireplane wikiPageRevisionID "654696596".
- Fireplane wikiPageWikiLink Cache_(computing).
- Fireplane wikiPageWikiLink Cache_coherence.
- Fireplane wikiPageWikiLink Category:Computer_buses.
- Fireplane wikiPageWikiLink Category:Sun_Microsystems_hardware.
- Fireplane wikiPageWikiLink Crossbar_switch.
- Fireplane wikiPageWikiLink Data_center.
- Fireplane wikiPageWikiLink Datacenter.
- Fireplane wikiPageWikiLink Dot-com_bubble.
- Fireplane wikiPageWikiLink Dot_com_boom.
- Fireplane wikiPageWikiLink Enterprise_server.
- Fireplane wikiPageWikiLink HP_Superdome.
- Fireplane wikiPageWikiLink Interconnect.
- Fireplane wikiPageWikiLink Memory_caching.
- Fireplane wikiPageWikiLink Multiprocessing.
- Fireplane wikiPageWikiLink Multiprocessor.
- Fireplane wikiPageWikiLink Network_switch.
- Fireplane wikiPageWikiLink Server_(computing).
- Fireplane wikiPageWikiLink Shared_memory_architecture.
- Fireplane wikiPageWikiLink Silicon_Graphics_International.
- Fireplane wikiPageWikiLink Snoopy_cache.
- Fireplane wikiPageWikiLink Sun_Blade_(workstation).
- Fireplane wikiPageWikiLink Sun_Enterprise.
- Fireplane wikiPageWikiLink Sun_Fire.
- Fireplane wikiPageWikiLink Sun_Fire_15K.
- Fireplane wikiPageWikiLink Sun_Microsystems.
- Fireplane wikiPageWikiLink Sun_Starfire.
- Fireplane wikiPageWikiLink Ultra_Port_Architecture.
- Fireplane wikiPageWikiLink Uniform_memory_access.
- Fireplane wikiPageWikiLink Unix_workstation.
- Fireplane wikiPageWikiLink Workstation.
- Fireplane wikiPageWikiLink World_Wide_Web.
- Fireplane wikiPageWikiLink World_wide_web.
- Fireplane wikiPageWikiLinkText "Fireplane".
- Fireplane hasPhotoCollection Fireplane.
- Fireplane wikiPageUsesTemplate Template:About.
- Fireplane wikiPageUsesTemplate Template:Cite_journal.
- Fireplane wikiPageUsesTemplate Template:Cite_web.
- Fireplane wikiPageUsesTemplate Template:Compu-hardware-stub.
- Fireplane wikiPageUsesTemplate Template:Reflist.
- Fireplane wikiPageUsesTemplate Template:Sun_Microsystems.
- Fireplane subject Category:Computer_buses.
- Fireplane subject Category:Sun_Microsystems_hardware.
- Fireplane hypernym Development.
- Fireplane type Connector.
- Fireplane type Microsystem.
- Fireplane type Protocol.
- Fireplane comment "Fireplane is a computer internal interconnect created by Sun Microsystems.The Fireplane interconnect architecture is an evolutionary development of Sun's previous Ultra Port Architecture (UPA). It was introduced in October 2000 as the processor I/O interconnect in the Sun Blade 1000 workstation, followed in early 2001 by its use in the Sun Fire and Sun Fire 15K series enterprise servers.".
- Fireplane label "Fireplane".
- Fireplane sameAs m.0533s9.
- Fireplane sameAs Q4038774.
- Fireplane sameAs Q4038774.
- Fireplane wasDerivedFrom Fireplane?oldid=654696596.
- Fireplane isPrimaryTopicOf Fireplane.