MOSIX is a proprietary distributed operating system.[4] Although early versions were based on older UNIX systems, since 1999 it focuses on Linuxclusters and grids. In a MOSIX cluster/grid there is no need to modify or to link applications with any library, to copy files or login to remote nodes, or even to assign processes to different nodes – it is all done automatically, like in an SMP.
MOSIX has been researched and developed since 1977 at The Hebrew University of Jerusalem by the research team of Prof. Amnon Barak. So far, ten major versions have been developed. The first version, called MOS, for Multicomputer OS, (1981–83) was based on Bell Lab's Seventh Edition Unix and ran on a cluster of PDP-11 computers. Later versions were based on Unix System V Release 2 (1987–89) and ran on a cluster of VAX and NS32332-based computers, followed by a BSD/OS-derived version (1991–93) for a cluster of 486/Pentium computers. Since 1999 MOSIX is tuned to Linux for x86 platforms.
MOSIX2
The second version of MOSIX, called MOSIX2, compatible with Linux-2.6 and 3.0 kernels. MOSIX2 is implemented as an OS virtualization layer that provides users and applications with a single system image with the Linux run-time environment. It allows applications to run in remote nodes as if they run locally. Users run their regular (sequential and parallel) applications while MOSIX transparently and automatically seek resources and migrate processes among nodes to improve the overall performance.
MOSIX2 can manage a cluster and a multicluster (grid) as well as workstations and other shared resources. Flexible management of a grid allows owners of clusters to share their computational resources, while still preserving their autonomy over their own clusters and their ability to disconnect their nodes from the grid at any time, without disrupting already running programs.
A MOSIX grid can extend indefinitely as long as there is trust between its cluster owners. This must include guarantees that guest applications will not be modified while running in remote clusters and that no hostile computers can be connected to the local network. Nowadays these requirements are standard within clusters and organizational grids.
MOSIX2 can run in native mode or in a virtual machine (VM). In native mode, performance is better, but it requires modifications to the base Linux kernel, whereas a VM can run on top of any unmodified operating system that supports virtualization, including Microsoft Windows, Linux and Mac OS X.
MOSIX2 is most suitable for running compute intensive applications with low to moderate amount of input/output (I/O). Tests of MOSIX2 show that the performance of several such applications over a 1 Gbit/s campus grid is nearly identical to that of a single cluster.[citation needed]
Main features
Provides aspects of a single-system image:
Users can login on any node and do not need to know where their programs run.
No need to modify or link applications with special libraries.
No need to copy files to remote nodes.
Automatic resource discovery and workload distribution by process migration:
Migrating processes from slower to faster nodes and from nodes that run out of free memory.
Migratable sockets for direct communication between migrated processes.
Secure run time environment (sandbox) for guest processes.
Live queuing – queued jobs preserve their full generic Linux environment.
Batch jobs.
Checkpoint and recovery.
Tools: automatic installation and configuration scripts, on-line monitors.
MOSIX for HPC
MOSIX is most suitable for running HPC applications with low to moderate amount of I/O. Tests of MOSIX show that the performance of several such applications over a 1 Gbit/s campus grid is nearly identical to that of a single cluster.[citation needed] It is particularly suitable for:
Efficient utilization of grid-wide resources, by automatic resource discovery and load-balancing.[citation needed]
Running applications with unpredictable resource requirements or run times.[citation needed]
Running long processes, which are automatically sent to grid nodes and are migrated back when these nodes are disconnected from the grid.[citation needed]
Combining nodes of different speeds, by migrating processes among nodes based on their respective speeds, current load, and available memory.[citation needed]
On July 15, 2007, Bar decided to end the openMosix project effective March 1, 2008, claiming that "the increasing power and availability of low cost multi-core processors is rapidly making single-system image (SSI) clustering less of a factor in computing". These plans were reconfirmed in March 2008.[6] The LinuxPMI project is continuing development of the former openMosix code.
Further reading
MOSIX4
A. Barak and A. Shiloh. The MOSIX Cluster Management System for Distributed Computing on Linux Clusters and Multi-Cluster private Clouds white paper, 2016.
A. Barak and A. Shiloh. MOSIX Administrator's, User's and Programmer's Guides and Manuals. Revised for MOSIX-4.3, 2015.
MOSIX2 for Linux 2.6
Meiri E. and Barak A., , Proc. IEEE Cluster 2007, Austin, Sept. 2007.
Amar L., Stosser J., Barak A. and Neumann D., , Workshop on Economic Models and Algorithms for Grid System (EAMGS 2007), 8th IEEE/ACM Int. Conf. on Grid Computing(Grid 2007), Austin, Sept. 2007.
Amar L., Barak A., Levy E. and Okun M., An On-line Algorithm for Fair-Share Node Allocations in a Cluster. Proc. 7-th IEEE Int. Symposium on Cluster Computing and the Grid (CCGrid '07), pp. 83–91, Rio de Janeiro, May 2007.
Amar L., Barak A., Drezner Z. and Peer I., Gossip Algorithms for Maintaining a Distributed Bulletin Board with Guaranteed Age Properties. TR, 2006.
Barak A., Shiloh A. and Amar L., An Organizational Grid of Federated MOSIX Clusters. Proc. 5-th IEEE International Symposium on Cluster Computing and Grid (CCGrid '05), Cardiff, May 2005 .
Barak A. and Drezner Z., Gossip-Based Distributed Algorithms for Estimating the Average Load of Scalable Computing Clusters and Grids. Proc. 2004 Int. Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'04), Las Vegas, NV, June 2004.
MOSIX for Linux 2.2 & 2.4
Okun M. and Barak A., Atomic Writes for Data Integrity and Consistency in Shared Storage Devices for Clusters. Journal of Future Generation Computer Systems, Vol. 20, No. 4, pp. 539–547, May 2004.
Amar L., Barak A. and Shiloh A., . Cluster Computing, Vol. 7, No. 2, pp. 141–150, April 2004.
Keren A. and Barak A., Opportunity Cost Algorithms for Reduction of I/O and Interprocess Communication Overhead in a Computing Cluster. IEEE Tran. Parallel and Distributed Systems, Vol. 14, No. 1, pp. 39–50, January 2003.
Amar L., Barak A. and Shiloh A., The MOSIX Parallel I/O System for Scalable I/O Performance. Proc. 14-th IASTED Int. Conference on Parallel and Distributed Computing and Systems (PDCS 2002), pp. 495–500, Cambridge, MA, Nov. 2002.
Amir Y., Awerbuch B., Barak A., Borgstrom R.S. and Keren A., An Opportunity Cost Approach for Job Assignment in a Scalable Computing Cluster. IEEE Tran. on Parallel and Distributed Systems, Vol. 11, No. 7, pp. 760–768, July 2000.
McClure S. and Wheeler R., . Proc. 2000 USENIX Annual Tech. Conf., pp. 49–56, San Diego, CA., June 2000.
Amar L., Barak A., Eizenberg A. and Shiloh A.,. The MOSIX Scalable Cluster File Systems for LINUX, June 2000.
Barak A., La'adan O. and Shiloh A., . Proc. 5-th Annual Linux Expo, pp. 95–100, Raleigh, NC, May 1999.
MOSIX Version 1 book
Barak A., Guday S. and Wheeler R., The MOSIX Distributed Operating System, Load Balancing for UNIX. Lecture Notes in Computer Science, Vol. 672, Springer-Verlag, May 1993.
Other
Barak A. and La'adan O., . Journal of Future Generation Computer Systems, Vol. 13, No. 4-5, pp. 361–372, March 1998.
Barak A., Laden O. and Yarom Y., The NOW MOSIX and its Preemptive Process Migration Scheme. IEEE TCOS, Vol. 7, No. 2, pp. 5–11, Summer 1995.
Haban D., Wybranietz D. and Barak A., Monitoring and Management-Support of Distributed Systems, Proc. European Workshop on Progress in Distributed operating Systems and Distributed System management, pp. 110–137, Berlin, April 1989.
Barak A. and Wheeler R., MOSIX: An Integrated Multiprocessor UNIX. Proc. Winter 1989 USENIX Conf., pp. 101–112, San Diego, CA, Feb. 1989.
Barak A., Shiloh A. and Wheeler R., Flood Prevention in the MOSIX Load-Balancing Scheme, IEEE-TCOS Newsletter, Vol. 3, No. 1, pp. 24–27, Winter 1989.
Barak A. and Kornatzky Y., Design Principles of Operating Systems for Large Scale Multicomputers, Proc. Int. Workshop on Experience with Distributed Systems, pp. 104–123, Kaiserslautern, Sept. 1987. Also, Report RC 13220, IBM T.J. Watson Research Center, Yorktown Heights, NY, Oct. 1987.
Alon N., Barak A. and Manber U., On Disseminating Information Reliably Without Broadcasting, Proc. 7-th Int. Conf. on Distributed Computing Systems (ICDCS-7), pp. 74–81 (best conference paper), Berlin, Sept. 1987.
Barel A., NSMOS - MOS Port to the National's 32000 Family Architecture. Proc. 2nd Israel Conf. Computer Systems and Soft. Eng., Tel-Aviv, May 1987.
Barak A., Drezner Z. and Gurevich Y., On the Number of Active Nodes in a Multicomputer System, Networks, An Int. Journal, Vol. 16, No. 3, pp. 275–282, Fall 1986.
Barak A. and Paradise G. O., MOS - Scaling Up UNIX. Proc. Summer 1986 USENIX Conf., pp. 414–418, Atlanta, GA, June 1986.
Barak A. and Paradise G. O., MOS - a Load Balancing UNIX. Proc. Autumn 86 EUUG Conf., pp. 273–280, Manchester, Sept. 1986.
Drezner Z. and Barak A., An Asynchronous Algorithm for Scattering Information Between the Active Nodes of a Multicomputer System, Journal of Parallel and Distributed Computing, Vol. 3, No. 3, pp. 344–351, Sept. 1986.
Barak A. and Shiloh A., A Distributed Load-balancing Policy for a Multicomputer. Software - Practice & Experience, Vol. 15, No. 9, pp. 901–913, Sept. 1985.
Barak A. and Litman A., MOS - A Multicomputer Distributed Operating System. Software - Practice & Experience, Vol. 15, No. 8, pp. 725–737, Aug. 1985.
Drezner Z. and Barak A., Efficient Algorithms for Routing Information in a Multicomputer System, Distributed Algorithms on Graphs, Carleton Univ. Press, pp. 41–48, Ottawa, Aug. 1985.
Barak A., Dynamic Process Control for Distributed Computing, Proc. 3-rd Int. Conf. on Distributed Computing Systems (ICDCS-3), pp. 36–40, Ft. Lauderdale, FL, Oct. 1982.
Barak A., Shapir A., Steinberg G. and Karshmer A.I., A Modular, Distributed UNIX. Proc. 14-th Hawaii Int. Conf. on System Science, pp. 740–747, January 1981.
Barak A. and Shapir A., UNIX with satellite Processors. Software - Practice & Experience, Vol. 10, No. 5, pp. 383–392, May 1980.
mosix, proprietary, distributed, operating, system, although, early, versions, were, based, older, unix, systems, since, 1999, focuses, linux, clusters, grids, cluster, grid, there, need, modify, link, applications, with, library, copy, files, login, remote, n. MOSIX is a proprietary distributed operating system 4 Although early versions were based on older UNIX systems since 1999 it focuses on Linux clusters and grids In a MOSIX cluster grid there is no need to modify or to link applications with any library to copy files or login to remote nodes or even to assign processes to different nodes it is all done automatically like in an SMP MOSIXDeveloper s Amnon Barak 1 Stable release4 4 4 2 24 October 2017 5 years ago 2017 10 24 Operating systemLinuxTypeCluster softwareLicenseown 3 Websitewww wbr mosix wbr cs wbr huji wbr ac wbr il wbr index wbr html Contents 1 History 1 1 MOSIX2 1 1 1 Main features 1 1 2 MOSIX for HPC 1 2 MOSIX4 2 openMosix 3 Further reading 3 1 MOSIX4 3 2 MOSIX2 for Linux 2 6 3 3 MOSIX for Linux 2 2 amp 2 4 3 4 MOSIX Version 1 book 3 5 Other 4 See also 5 Notes 6 External linksHistory EditMOSIX has been researched and developed since 1977 at The Hebrew University of Jerusalem by the research team of Prof Amnon Barak So far ten major versions have been developed The first version called MOS for Multicomputer OS 1981 83 was based on Bell Lab s Seventh Edition Unix and ran on a cluster of PDP 11 computers Later versions were based on Unix System V Release 2 1987 89 and ran on a cluster of VAX and NS32332 based computers followed by a BSD OS derived version 1991 93 for a cluster of 486 Pentium computers Since 1999 MOSIX is tuned to Linux for x86 platforms MOSIX2 Edit The second version of MOSIX called MOSIX2 compatible with Linux 2 6 and 3 0 kernels MOSIX2 is implemented as an OS virtualization layer that provides users and applications with a single system image with the Linux run time environment It allows applications to run in remote nodes as if they run locally Users run their regular sequential and parallel applications while MOSIX transparently and automatically seek resources and migrate processes among nodes to improve the overall performance MOSIX2 can manage a cluster and a multicluster grid as well as workstations and other shared resources Flexible management of a grid allows owners of clusters to share their computational resources while still preserving their autonomy over their own clusters and their ability to disconnect their nodes from the grid at any time without disrupting already running programs A MOSIX grid can extend indefinitely as long as there is trust between its cluster owners This must include guarantees that guest applications will not be modified while running in remote clusters and that no hostile computers can be connected to the local network Nowadays these requirements are standard within clusters and organizational grids MOSIX2 can run in native mode or in a virtual machine VM In native mode performance is better but it requires modifications to the base Linux kernel whereas a VM can run on top of any unmodified operating system that supports virtualization including Microsoft Windows Linux and Mac OS X MOSIX2 is most suitable for running compute intensive applications with low to moderate amount of input output I O Tests of MOSIX2 show that the performance of several such applications over a 1 Gbit s campus grid is nearly identical to that of a single cluster citation needed Main features Edit Provides aspects of a single system image Users can login on any node and do not need to know where their programs run No need to modify or link applications with special libraries No need to copy files to remote nodes Automatic resource discovery and workload distribution by process migration Load balancing Migrating processes from slower to faster nodes and from nodes that run out of free memory Migratable sockets for direct communication between migrated processes Secure run time environment sandbox for guest processes Live queuing queued jobs preserve their full generic Linux environment Batch jobs Checkpoint and recovery Tools automatic installation and configuration scripts on line monitors MOSIX for HPC Edit MOSIX is most suitable for running HPC applications with low to moderate amount of I O Tests of MOSIX show that the performance of several such applications over a 1 Gbit s campus grid is nearly identical to that of a single cluster citation needed It is particularly suitable for Efficient utilization of grid wide resources by automatic resource discovery and load balancing citation needed Running applications with unpredictable resource requirements or run times citation needed Running long processes which are automatically sent to grid nodes and are migrated back when these nodes are disconnected from the grid citation needed Combining nodes of different speeds by migrating processes among nodes based on their respective speeds current load and available memory citation needed A few examples Scientific applications genomic protein sequences molecular dynamics quantum dynamics nano technology and other parallel HPC applications Engineering applications CFD weather forecasting crash simulations oil industry ASIC design pharmaceutical and other HPC applications MOSIX4 Edit MOSIX4 was released in July 2014 2 As of version 4 MOSIX doesn t require kernel patching 2 openMosix EditAfter MOSIX became proprietary software in late 2001 Moshe Bar forked the last free version and started the openMosix project on February 10 2002 5 On July 15 2007 Bar decided to end the openMosix project effective March 1 2008 claiming that the increasing power and availability of low cost multi core processors is rapidly making single system image SSI clustering less of a factor in computing These plans were reconfirmed in March 2008 6 The LinuxPMI project is continuing development of the former openMosix code Further reading EditMOSIX4 Edit A Barak and A Shiloh The MOSIX Cluster Management System for Distributed Computing on Linux Clusters and Multi Cluster private Clouds white paper 2016 A Barak and A Shiloh MOSIX Administrator s User s and Programmer s Guides and Manuals Revised for MOSIX 4 3 2015 MOSIX2 for Linux 2 6 Edit Meiri E and Barak A Parallel Compression of Correlated Files Proc IEEE Cluster 2007 Austin Sept 2007 Amar L Stosser J Barak A and Neumann D Economically Enhanced MOSIX for Market based Scheduling in Grid OS Workshop on Economic Models and Algorithms for Grid System EAMGS 2007 8th IEEE ACM Int Conf on Grid Computing Grid 2007 Austin Sept 2007 Amar L Barak A Levy E and Okun M An On line Algorithm for Fair Share Node Allocations in a Cluster Proc 7 th IEEE Int Symposium on Cluster Computing and the Grid CCGrid 07 pp 83 91 Rio de Janeiro May 2007 Amar L Barak A Drezner Z and Peer I Gossip Algorithms for Maintaining a Distributed Bulletin Board with Guaranteed Age Properties TR 2006 Barak A Shiloh A and Amar L An Organizational Grid of Federated MOSIX Clusters Proc 5 th IEEE International Symposium on Cluster Computing and Grid CCGrid 05 Cardiff May 2005 Barak A and Drezner Z Gossip Based Distributed Algorithms for Estimating the Average Load of Scalable Computing Clusters and Grids Proc 2004 Int Conference on Parallel and Distributed Processing Techniques and Applications PDPTA 04 Las Vegas NV June 2004 MOSIX for Linux 2 2 amp 2 4 Edit Okun M and Barak A Atomic Writes for Data Integrity and Consistency in Shared Storage Devices for Clusters Journal of Future Generation Computer Systems Vol 20 No 4 pp 539 547 May 2004 Amar L Barak A and Shiloh A The MOSIX Direct File System Access Method for Supporting Scalable Cluster File Systems Cluster Computing Vol 7 No 2 pp 141 150 April 2004 Keren A and Barak A Opportunity Cost Algorithms for Reduction of I O and Interprocess Communication Overhead in a Computing Cluster IEEE Tran Parallel and Distributed Systems Vol 14 No 1 pp 39 50 January 2003 Amar L Barak A and Shiloh A The MOSIX Parallel I O System for Scalable I O Performance Proc 14 th IASTED Int Conference on Parallel and Distributed Computing and Systems PDCS 2002 pp 495 500 Cambridge MA Nov 2002 Amir Y Awerbuch B Barak A Borgstrom R S and Keren A An Opportunity Cost Approach for Job Assignment in a Scalable Computing Cluster IEEE Tran on Parallel and Distributed Systems Vol 11 No 7 pp 760 768 July 2000 McClure S and Wheeler R MOSIX How Linux Clusters Solve Real World Problems Proc 2000 USENIX Annual Tech Conf pp 49 56 San Diego CA June 2000 Amar L Barak A Eizenberg A and Shiloh A The MOSIX Scalable Cluster File Systems for LINUX June 2000 Barak A La adan O and Shiloh A Scalable Cluster Computing with MOSIX for LINUX Proc 5 th Annual Linux Expo pp 95 100 Raleigh NC May 1999 MOSIX Version 1 book Edit Barak A Guday S and Wheeler R The MOSIX Distributed Operating System Load Balancing for UNIX Lecture Notes in Computer Science Vol 672 Springer Verlag May 1993 Other Edit Barak A and La adan O The MOSIX Multicomputer Operating System for High Performance Cluster Computing Journal of Future Generation Computer Systems Vol 13 No 4 5 pp 361 372 March 1998 Barak A Laden O and Yarom Y The NOW MOSIX and its Preemptive Process Migration Scheme IEEE TCOS Vol 7 No 2 pp 5 11 Summer 1995 Haban D Wybranietz D and Barak A Monitoring and Management Support of Distributed Systems Proc European Workshop on Progress in Distributed operating Systems and Distributed System management pp 110 137 Berlin April 1989 Barak A and Wheeler R MOSIX An Integrated Multiprocessor UNIX Proc Winter 1989 USENIX Conf pp 101 112 San Diego CA Feb 1989 Barak A Shiloh A and Wheeler R Flood Prevention in the MOSIX Load Balancing Scheme IEEE TCOS Newsletter Vol 3 No 1 pp 24 27 Winter 1989 Barak A and Kornatzky Y Design Principles of Operating Systems for Large Scale Multicomputers Proc Int Workshop on Experience with Distributed Systems pp 104 123 Kaiserslautern Sept 1987 Also Report RC 13220 IBM T J Watson Research Center Yorktown Heights NY Oct 1987 Alon N Barak A and Manber U On Disseminating Information Reliably Without Broadcasting Proc 7 th Int Conf on Distributed Computing Systems ICDCS 7 pp 74 81 best conference paper Berlin Sept 1987 Barel A NSMOS MOS Port to the National s 32000 Family Architecture Proc 2nd Israel Conf Computer Systems and Soft Eng Tel Aviv May 1987 Barak A Drezner Z and Gurevich Y On the Number of Active Nodes in a Multicomputer System Networks An Int Journal Vol 16 No 3 pp 275 282 Fall 1986 Barak A and Paradise G O MOS Scaling Up UNIX Proc Summer 1986 USENIX Conf pp 414 418 Atlanta GA June 1986 Barak A and Paradise G O MOS a Load Balancing UNIX Proc Autumn 86 EUUG Conf pp 273 280 Manchester Sept 1986 Drezner Z and Barak A An Asynchronous Algorithm for Scattering Information Between the Active Nodes of a Multicomputer System Journal of Parallel and Distributed Computing Vol 3 No 3 pp 344 351 Sept 1986 Barak A and Shiloh A A Distributed Load balancing Policy for a Multicomputer Software Practice amp Experience Vol 15 No 9 pp 901 913 Sept 1985 Barak A and Litman A MOS A Multicomputer Distributed Operating System Software Practice amp Experience Vol 15 No 8 pp 725 737 Aug 1985 Drezner Z and Barak A Efficient Algorithms for Routing Information in a Multicomputer System Distributed Algorithms on Graphs Carleton Univ Press pp 41 48 Ottawa Aug 1985 Barak A Dynamic Process Control for Distributed Computing Proc 3 rd Int Conf on Distributed Computing Systems ICDCS 3 pp 36 40 Ft Lauderdale FL Oct 1982 Barak A Shapir A Steinberg G and Karshmer A I A Modular Distributed UNIX Proc 14 th Hawaii Int Conf on System Science pp 740 747 January 1981 Barak A and Shapir A UNIX with satellite Processors Software Practice amp Experience Vol 10 No 5 pp 383 392 May 1980 See also EditLinuxPMI OpenMOSIXNotes Edit MOSIX Frequently Asked Questions a b c MOSIX Changelog www wbr mosix wbr cs wbr huji wbr ac wbr il wbr txt wbr distributions wbr html The MOSIX distributed operating system Load balancing for UNIX volume 672 of Lecture Notes in Computer Science Springer Verlag New York 1993 the openMosix Project OpenMosix External links EditMOSIX homepage Retrieved from https en wikipedia org w index php title MOSIX amp oldid 1091311300, wikipedia, wiki, book, books, library,
