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2010-07-30

1 new XtreemOS-MD demo published

We have another new demo video on-line, again made by the TID team: "XtreemOS-MD On-Demand File Sharing demo".

The video is available here:
http://www.xtreemos.eu/documentation-support/screencasts/featured-xtreemos-use-cases/
(right at the bottom of the page)

2010-07-09

2 XtreemOS-MD demos now published

We are pleased to announce that we have two new demo videos online made by TID:

  • XtreemOS-MD Grid Media Player
  • Sharing a smartphone's 3G connection
PLease check this webpage: video demos

 

2010-04-27

XtreemOS Mobile Device flavour at EuroSys 2010

Alvaro Martinez Reol (TID) presented the XtreemOS MD flavour during the EuroSys 2010 conference (Paris, France) with a poster, demo and stand.

 

EuroSys 2010 - MD flavour

About 30 people came and visited the stand and both the poster and demo were explained directly to around 15. Conference delegates stopping at the XtreemOS stand seemed to be quite interested, not only in the MD part, but also in learning more about XtreemOS as a whole and about specific XtremOS components (XtreemFS, XtreemOS cluster flavour, use cases...).

Other visitors showed interest in XtreemOS and its possible advantages compared to other Grid solutions while others came to see the poster and GridPlayer video after they participated in the XtreemOS tutorial session.

2009-11-04

Get acquainted with one XtreemOS partner: Barcelona Supercomputing Center (BSC)

 Early in 2004 the Ministry of Education and Science (Spanish Government), Generalitat de Catalunya (local Catalan Government) and Technical University of Catalonia (UPC) took the initiative of creating a National Supercomputing Center in Barcelona. BSC-CNS (Barcelona Supercomputing Center – Centro Nacional de Supercomputaci√≥n) is the National Supercomputing Facility in Spain and was officially constituted in April 2005. BSC-CNS manages MareNostrum, one of the most powerful supercomputers in Europe, located at the Torre Girona chapel. The mission of BSC-CNS is to investigate, develop and manage information technology in order to facilitate scientific progress. With this aim, special dedication has been taken to areas such as Computational Sciences, Life Sciences and Earth Sciences.

All these activities are complementary to each other and very tightly related. In this way, a multidisciplinary loop is set up: our exposure to industrial and non-computer science academic practices improves our understanding of the needs and helps us focusing our basic research towards improving those practices. The result is very positive both for our research work as well as for improving the way we service our society.

 

XtreemOS overall architecture

 

BSC contribution to XtreemOS

 

  • Application execution management

The main task of BSC in XtreemOS is to lead the research and development of the Application Execution Management (AEM) module. This module is in charge of setting the whole environment to run jobs in the grid (build reservations, allocate resources, schedule jobs, launch processes, etc.) and to control and monitor them (maintaining the state, allow thread-level monitoring, etc.).

 

Specifically BSC is highly involved in the scalable job management avoiding any kind of bottleneck as well as on the monitoring that allows users to monitor a job just as if it were a Linux process (you can even monitor the change of thread states). 

  • XtreemFS

 In the data management module, the storage system research group is in charge of the algorithm to locate the best replica of a file as well as to decide when and where replicas should be created and/or removed. This mechanism is base on an improved version of the Vivaldi algorithm that places all XtreemOS nodes into a 2D space based on communication latencies.

  • Mobile-device flavor

Regarding mobile devices, BSC is cooperating with TiD to build the embedded version of XtreemOS to be run on mobile devices. Mainly, BSC is working on the AEM and XtreemFS modules of XtreemOS-G for these devices. 

  • Applications 

Finally, BSC is porting two applications trying to take full advantage of the benefits of this new system. These applications are specweb 2005 and hmmpfam which runs on top of COMPSs a workflow manager that is also ported to its full efficiency to XtreemOS by BSC.

 

2009-07-15

Third project review meeting in Rennes (France)

The third project review meeting was held last July 8-9 in Rennes, France.

A delegation of XtremOS members gave presentations to allow the EC project officer and a reviewers' panel assessing the progress made by the consortium over the past year (June 2008- May 2009). The main technical and scientific achievements are the soon-to-be-publicly released second release of the XtreemOS system -including a graphical tool that makes the system easier to configure and install- and advanced features (integrated in XtreemOS v2.0).

The first demos of XtreemOS 2.0 were also run: a core scenario of the whole XtreemOS system and individual demos of stand-alone components (XtreemOS mobile device flavour, grid checkpointing/fault tolerance, virtual nodes...).

Review Meeting


This project review meeting was followed by a meeting of the Scientific Advisory Committee on July 9-10, 2009.

The XtremOS SAC is composed of experts from academic and industrial entities, both internal and external to the consortium, is a scientific evaluation consultative body.
It aims at maintaining the consortium at the forefront of knowledge worldwide and tackling specific technical difficulties.

 

2009-04-03

XtreemOS-MD first release available!

The Mobile Device Flavor of XtreemOS (aka. XtreemOS-MD) has been recently released and it is available for downloading and testing from Mandriva repositories under the directory devel/xtreemos/2008.0/mobile.

ftp://ftp.free.fr/mirrors/ftp.mandriva.com/MandrivaLinux/devel/xtreemos/2008.0/mobile/

The XtreemOS-MD software distribution is our first released implementation XtreemOS project for Mobile Devices, which integrates the Grid client functionality in Mobile Devices. The most important features are:

  • Grid available out of the box: the installation is as simple as a single click on a Web page and no user configuration is required, only your username and password for the Grid.
  • Grid login uses a plug-able, Single-Sign-On system. Login may be manual or automatic.
  • Automounting of the home Grid filesystem volume when user logs-in the Grid.
  • User may launch processes in the Grid.
  • User may run applications compliant with SAGA API (further work is needed for complete support)


XtreemOS-MD is currently available for two platforms:

  • Nokia N800 and Nokia 810 Internet Tablets running Maemo 2008 distribution.
  • Angstrom 2007.12 (currently, the last stable version until the date of publication of XtreemOS-MD, 2008/02/28) running in a Qemu emulator.


Installation is easier in Maemo 2008 (i.e. Nokia N8x0), because the platform provides the
functionality of "click to install" without needing to login as root in your mobile device. In Angstrom, installation requires to download and execute an installation script as root on top of a QEMU emulator.