i2glogin
Overview
i2glogin is a tool to enable interactive communication between a grid job and the user interface. I2glogin is a spinoff of the original glogin tool available at http://www.gup.jku.at/glogin.
The fundamental difference between the the two tools is given by the job submission mechanism used: While glogin submits itself automatically to the grid, i2glogin requires to be submitted explicitely using the grid middleware.
Working interactively means to make use of a communication channel which allows an interformation exchange in both direction, at a time a job is still running. An imporant feature of interactivity is to be able to exchange data sufficiently fast enough, thus requiring a fast communications channel. The grid environment additionally demands for secure data communication.
Working interactively is always based on some form of program to program communication (IPC), even when there seemingly is only one program involved. Data exchange always takes place using communication descriptors. This is where i2glogin comes into play: it intercepts data sent from one communication partners and securely forwards the data to the other partner. For this purpose, a separate TCP-connection is created, forming a secure data tunnel. i2glogin secures this tunnel by making use of grid authentication and encryption mechanisms.
Download
Current version 1.1.9
Previous versions
You can download the complete documentation including download, building, and usage instructions from here.Author
Herbert Rosmanith
GUP, Johannes Kepler University Linz
For more information please contact i2glogin AT gup.jku.at
