View source for OpenMosix

{{Short description|Distributed operating system}}
[[Image:OpenMosix.svg|thumb|right|300px|Transfers in an openMosix cluster.]]
{{Lowercase|title=openMosix}}
'''openMosix''' was a [[free software|free]] [[computer cluster|cluster]] management system that provided [[single-system image]] (SSI) capabilities, e.g. automatic work distribution among [[node (networking)|nodes]]. It allowed program [[process (computing)|processes]] (not [[thread (computer science)|threads]]) to migrate to machines in the node's [[computer network|network]] that would be able to run that process faster ([[process migration]]). It was particularly useful for running parallel applications having low to moderate [[input/output]] (I/O).<ref>{{cite web |url=http://www.mosix.cs.huji.ac.il/txt_about.html |title=About MOSIX |access-date=2017-07-20}}</ref> It was released as a [[Linux kernel]] patch, but was also available on specialized [[Live CD]]s. openMosix development has been halted by its developers, but the LinuxPMI project is continuing development of the former openMosix code.

==History==

openMosix was originally [[fork (software development)|fork]]ed from [[MOSIX]] by [[Moshe Bar (investor)|Moshe Bar]] on February 10, 2002 when MOSIX became [[proprietary software]].

openMosix was considered stable on [[Linux kernel]] 2.4.x for the [[x86 architecture]], but porting to Linux 2.6 kernel remained in the alpha stage. Support for the 64-bit [[AMD64]] architecture only started with the 2.6 version.

On July 15, 2007, Bar announced that the openMOSIX project would reach its [[end-of-life (product)|end of life]] on March 1, 2008, due to the decreasing need for 
[[Single system image|single system image (SSI)]] clustering as low-cost [[multi-core processor]]s increase in availability.<ref>{{ cite web
 |url          = http://sourceforge.net/forum/forum.php?forum_id=715406
 |archive-url  = https://web.archive.org/web/20090809011407/http://sourceforge.net/forum/forum.php?forum_id=715406
 |archive-date = 2009-08-09
 |title        = openMosix Project End of Life Announcement
 |last         = Knox
 |first        = Bruce
 |access-date   = 2017-07-20
 |date         = 2007-07-15
 |website      = SourceForge.net
 |url-status      = dead
}}</ref>

OpenMosix used to be distributed as a [[Gentoo Linux]] kernel choice, but it was removed from Gentoo Linux's [[Portage (software)|''Portage tree'']] in February 2007.<ref name='GWN 1007-02-19'>{{cite news |first1=Chris |last1=Gianelloni |first2=Mark |last2=Kowarsky |first3=Donnie |last3=Berkholz |first4=Daniel |last4=Black |first5=Diego Elio |last5=Pettenò |first6=Keith |last6=Gable |title=Gentoo package moves |date=2007-02-19 |publisher=Gentoo Foundation, Inc. |url=http://www.gentoo.org/news/en/gwn/20070219-newsletter.xml#doc_chap6 |archive-url=https://web.archive.org/web/20141225024219/http://www.gentoo.org/news/en/gwn/20070219-newsletter.xml#doc_chap6 |archive-date=2014-12-25 |work=Gentoo Weekly Newsletter |access-date=2017-07-20 |language=en |url-status=dead }}</ref>

As of March 1, 2008, openMosix read-only source code is still hosted at SourceForge.<ref>{{cite web | url = http://openmosix.sourceforge.net/ | title = the openMosix Project | date = 2008-03-01 | access-date = 2008-03-01}}</ref> The OpenPMIx project is continuing development of the former openMosix code.

==ClusterKnoppix==
{{Infobox OS
| name               = ClusterKnoppix
| logo               = 
| screenshot         = 
| caption            = 
| developer          = Wim Vandersmissen<ref>{{cite web|url=http://slashdot.org/story/03/05/29/1336229/clusterknoppix |title=ClusterKnoppix |date=2003-05-29 |website=[[Slashdot]]}}</ref>
| family             = [[Linux distribution]]
| working_state      = discontinued
| source_model       = [[Open-source software|Open source]]
| released           = {{Start date and age|2003|05|10|df=yes}}
| latest release version = 3.6
| latest release date = {{Start date and age|2004|09|01|df=yes}}<ref>{{cite web |title=clusterKNOPPIX |publisher=[[DistroWatch]] |date=2017-08-26 |url=https://distrowatch.com/table.php?distribution=clusterknoppix |access-date=2018-01-07}}</ref>
| frequently_updated = 
| language           = 
| updatemodel        = [[Advanced Packaging Tool|APT]] (several front-ends available)
| package_manager    = [[dpkg]]
| supported_platforms = [[x86|i486]]
| kernel_type        = [[Linux kernel]]
| userland           = [[GNU Core Utilities]]
| ui                 = 
| license            = [[Debian Free Software Guidelines]] and others
| website            = 
}}
''ClusterKnoppix'' is a specialized [[Linux distribution]] based on the [[Knoppix]] distribution, but which uses the openMosix kernel.

Traditionally, [[clustered computing]] could only be achieved by setting up individual [[Remote Shell|rsh]] keys, creating [[Network File System|NFS]] shares, editing host files, setting [[static IP]]s, and applying [[kernel (operating system)|kernel]] [[software patch|patch]]es manually.  ClusterKnoppix effectively renders most of this work unnecessary.  The distribution contains an autoconfiguration system where new ClusterKnoppix-running computers attached to the network automatically join the cluster.

ClusterKnoppix is a modified Knoppix distro using the OpenMosix kernel.

==See also==
{{Portal|Free and open-source software}}
*[[Kerrighed]]
*[[OpenSSI]]

===Live CDs===
[[Linux]] [[Live CD]]s with openMosix include:
*[[CHAOS (Linux distribution)|CHAOS]] (a very small boot CD)
*[[dyne:bolic]]
*[[Quantian]], a scientific distribution based on clusterKnoppix

==References==
{{Reflist}}

==External links==
*{{official website|http://openmosix.sourceforge.net/}}
*[http://openmosix.sourceforge.net/wiki.html openMosixWiki]
* [https://web.archive.org/web/20031202030502/http://bofh.be/clusterknoppix/ Original page at wayback archive]
* [https://sourceforge.net/projects/archiveos/files/c/clusterknoppix/ ClusterKnoppix at sourceforge.net]
* [http://distrowatch.com/table.php?distribution=clusterknoppix  Clusterknoppix at distrowatch]
* [http://clusterfudge.wordpress.com/2007/01/09/building-your-own-load-balancing-beowulf-cluster-from-economy-pcs/ Load-Balancing cluster HowTo using ClusterKnoppix]
* http://ftp.fi.muni.cz/pub/linux/clusterKnoppix/
* http://ftp.linux.cz/pub/linux/clusterKnoppix/
* [https://openpmix.github.io/  OpenPMIx]

===openMosix cluster sites===
*[http://www.cluster.kiev.ua/eng/ Cluster at National Taras Shevchenko University of Kyiv]
*[https://web.archive.org/web/20061130215357/http://www.iasi.cnr.it/~hydra/ Hydra]
*[https://web.archive.org/web/20070114214243/http://www.mbg.duth.gr/~glykos/cluster/index.html MBG Cluster]

{{Linux distributions}}

{{DEFAULTSORT:Openmosix}}
[[Category:Cluster computing]]
[[Category:Internet Protocol based network software]]
[[Category:Parallel computing]]