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Primeur weekly 2012-06-25

The Cloud

Dell drives public and hybrid Cloud adoption with vCloud trial in global expansion ...

SFR and Bull to implement a Cloud computing infrastructure for France and Europe ...

La Poste chooses Le cloud by Bull to access an ultra high-availability hosting infrastructure ...

Red Hat launches JBoss Enterprise Application Platform 6 to help enterprises move application development and deployment to the Cloud ...

Oracle expands Oracle Optimized Solution for Enterprise Cloud Infrastructure with SPARC and Oracle Solaris ...

VMware announces open source project to enable Apache Hadoop to run on private and public Clouds ...

Terremark and EMC align to globally accelerate customers journey to Cloud computing ...

Hong Kong solutions provider selects IBM PureSystems for Cloud services ...

Desktop Grids

Free resources for user-friendly molecular docking experiments ...

XtremWeb-HEP 8.1.2 released ...

Venomous snail key behind therapeutic molecules ...

EuroFlash

Catherine Rivière appointed as Council Chair of PRACE aisbl ...

Bull supports growth at GIP-MDS through flexible outsourcing ...

bullx supercomputer suite now supports SUSE Linux enterprise server ...

HP helps Red Bull Technology stay ahead of the competition ...

USFlash

New SGI UV Big Brain computer is world's largest in-memory system for data-intensive problems ...

View the world through the eyes of Wikipedia ...

NASA's Pleiades supercomputer gets a little more oomph ...

HP unveils next phase in Project Moonshot Extreme Low-energy Server Initiative ...

AMD strengthens security solutions through technology partnership with ARM ...

Indiana University to receive Open Science Grid funding ...

$27 million award bolsters research computing Grid ...

Dell Fluid Data architecture advancements unify and protect storage ...

Rogue Wave Software acquires ILOG Visualization C++ Products from IBM ...

Quantum computers could help search engines keep up with the Internet's growth ...

XtremWeb-HEP 8.1.2 released

25 Jun 2012 Orsay - EDGI project partner CNRS from the Laboratoire de l'Accélérateur Linéaire in Orsay, France has released the XtremWeb-HEP 8.1.2 version.

Major points in this version include:

  • Correction: inter node communication thanks to Jason Maassen from the Netherlands eScience Center in Amsterdam
  • Correction: REST interface
  • New feature: the server embeds Web service available through HTTPS

A. Corrections:

  • A.1 on server side, the scheduling improved: hosts.incomingconnection is now taken into account to ensure a server like job is not sent to a volunteer resource where incoming connections are not allowed
  • A.2 on server side, the scheduling improved: restoring a feature from XtremWeb 1.8.0 by INRIA: "expected host" so that the end user can specify at submission time the expected volunteer resource to run the job. Note that if the expected host does not request a job or does not match the requirements (OS, CPU, ...), the job is never computed.
  • A.3 the DG to SG bridge is now compatible with shared applications so that one can use VirtualBox on EGI resources
  • A.4 some bugs corrected on client side regarding application registration and task management
  • A.5 a bug corrected on temporary file usage: they are now cleaned at software exit
  • A.6 the REST interface has been completely rewritten. The <xwhep></xwhep> root element MUST be used. Ex:

a/ to send a new application: https://server/sendapp/?XWPARAM=<xwhep version="8.0.2-flyinggrid"><app name="pouet" /></xwhep>

b/ to retrieved registered applications: https://server/getapps

  • A.7 a bug corrected in HTTP data download
  • A.8 SmartSocket usage corrected; inter node communications fully functional now

B. New features:

  • B.1 the creation of new Live CD can be customized
  • this is done by providing several optional files:
  • > a text file 'user.packages' may be provided to install custom packages: this file must contain a space separated packages list
  • > a text file 'user.hostname' may be provided to customize the LiveCD hostname: this file must contain the host name only
  • > any package files are installed on the fly (*.rpm or *.deb, depending on the LiveCD OS)
  • B.2 the client can now be used to create SmartSockets end point, independently of any task
  • this may be useful to create SmartSockets tunnel from a running VM to the client PC
  • > e.g. mount the client FS inside the running VM
  • B.3 a new Mac OS X package "xwhep.vworker" to deploy the middleware inside a VM
  • B.4 the server contains an embedded Web service interface available through HTTPS

C. Known Bugs:

  • C.1 xtremweb.gmond.pl does not scale
  • C.2 the scheduler is not fair
  • C.3 there may be some concurrent access problems leading to some errors

There may be two concurrent access problems

  • on server side, DB access may lead to inconsistency between works and tasks tables

This could certainly be solved using SQL transactions

But we would then need MySQL >=5

There are sime issues with transactions with hsqldb

  • on worker side, file access if a worker is configured to run jobs in parallel (default one thread per CPU core)

CNRS has observed that these concurrent access problems may lead to up to 6% erroneous jobs. Until further notification, CNRS considers this rate acceptable.

More information is available at

href="http://www.xtremweb-hep.org/spip.php?rubrique15">http://www.xtremweb-hep.org/spip.php?rubrique15</a>

Source: EDGI

Back to Table of contents

Primeur weekly 2012-06-25

The Cloud

Dell drives public and hybrid Cloud adoption with vCloud trial in global expansion ...

SFR and Bull to implement a Cloud computing infrastructure for France and Europe ...

La Poste chooses Le cloud by Bull to access an ultra high-availability hosting infrastructure ...

Red Hat launches JBoss Enterprise Application Platform 6 to help enterprises move application development and deployment to the Cloud ...

Oracle expands Oracle Optimized Solution for Enterprise Cloud Infrastructure with SPARC and Oracle Solaris ...

VMware announces open source project to enable Apache Hadoop to run on private and public Clouds ...

Terremark and EMC align to globally accelerate customers journey to Cloud computing ...

Hong Kong solutions provider selects IBM PureSystems for Cloud services ...

Desktop Grids

Free resources for user-friendly molecular docking experiments ...

XtremWeb-HEP 8.1.2 released ...

Venomous snail key behind therapeutic molecules ...

EuroFlash

Catherine Rivière appointed as Council Chair of PRACE aisbl ...

Bull supports growth at GIP-MDS through flexible outsourcing ...

bullx supercomputer suite now supports SUSE Linux enterprise server ...

HP helps Red Bull Technology stay ahead of the competition ...

USFlash

New SGI UV Big Brain computer is world's largest in-memory system for data-intensive problems ...

View the world through the eyes of Wikipedia ...

NASA's Pleiades supercomputer gets a little more oomph ...

HP unveils next phase in Project Moonshot Extreme Low-energy Server Initiative ...

AMD strengthens security solutions through technology partnership with ARM ...

Indiana University to receive Open Science Grid funding ...

$27 million award bolsters research computing Grid ...

Dell Fluid Data architecture advancements unify and protect storage ...

Rogue Wave Software acquires ILOG Visualization C++ Products from IBM ...

Quantum computers could help search engines keep up with the Internet's growth ...