VL-e Resource Guide
Download & manual
Release 1 content
Release 2 content
Release 3 content
Release 3.1 content
Rules for contributing
Process a la Card
PoC R2 Induction 2007
Grid m/w tutorials
switch to print layout
Virtual Laboratory for e-Science
PoC Software Distribution
Note: these are the notes for the current release PoC R3.1; the previous release is PoC R3.
The VL-e Proof-of-Concept software distribution is a collection of tools for e-science on the grid, especially for use in the VL-e project. This collection is composed of open source tools and in-house developments to support the broad range of sciences that VL-e embraces. The PoC distribution is meant both for the grid infrastructure (worker nodes) and for user interface machines, to make sure the same versions of the software are used everywhere.
The PoC distribution can be installed on Red Hat Enterprise
Linux 5 x86_64 or compatible systems. It consists of
a collection of RPMs that can be installed with
The following steps cover just about everything you need to do to get a fully operation grid User Interface.
cd /etc/yum.repos.d wget http://poc.vl-e.nl/distribution/3.1/extra/vle.repo wget http://poc.vl-e.nl/distribution/3.1/extra/lcg-CA.repo wget http://poc.vl-e.nl/distribution/3.1/extra/glite-UI.repo yum install vle3-ui yum install lcg-CA yum install glite-UI yum install vle-vo-support
Alternatively, if the objective is not to install a UI, but just the
VL-e middleware (e.g. on a worker node), just add the vle.repo file and install the
More detailed instructions are given in the Administrator's Guide.
The latest release of the PoC R3.1 is R3.1 Build 12, released on June 10, 2010 (Release Notes). The build number can be determined by running
rpm -q vle3
which will return
The PoC distribution has a new major release every 9 to 12 months. Between major releases there are minor updates to fix bugs and security issues.
Notable changes in this release
Comments to Dennis van Dok or Jan Just Keijser.