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SIENews

The newsletter of the SIE de Investigación y Enseñanza N. 7 - April 2006

"How to read and modify a Makefile", Wed Apr 5 at 12.30 in the Aula

Virtually all the compilation and installation from source of software is done using the command make, which reads and executes the instructions contained in the "Makefile". Often some modifications in the library paths, compilation flags, etc. must be done by the user. In this talk, Esperanza will explain the structure and format of a Makefile, and teach us what typical elements might require changes to work in our specific platform (see the abstract in http://www.iac.es/sieinvens/SINFIN/sie_courses.php). We wish to thank Esperanza for volunteering to give this talk, and the "SIE de Instrumentación" for helping us organize it.

SIE's support for project and personal laptops

Whether you buy a project laptop (paid by your research group with IAC money) or a personal laptop (which you pay with your own money), you probably would like to know what kind of support you can expect from us. To this end, we have written a short document: SIE's support for project and personal laptops, which we hope will clarify the issue and help avoid possible misunderstandings.

Latest news on Information Technology

It's already springtime! Trees blossom, birds sing, bears and squirrels rouse from hybernation, and the Information Technology world blooms with new projects and initiatives. Here is a short selection of the most interesting recent IT news:

A computer in your USB pendrive...

Wouldn't it be nice to carry your computer in your shirt pocket? Well, you can (almost)! You are probably familiar with Live CDs, which let you carry a complete operating system in a CD, but with these you are stuck with the developer's choice of applications. With Catux-USB you can install an operating system in your USB pendrive and then modify it to your heart's content! Uninstall, install, modify anything you want, and carry your own operating system and data in your pendrive (see a screenshot at the SIE Forum). Now every computer will feel like home.

... and a Beowulf cluster in your computer!

Seriously! This is not an April's Fool joke. You can build a (virtual) cluster in your computer thanks to the Xen virtual machine monitor. With Xen you can create a number of virtual machines, all running simultaneously in your computer, but all can be as different as you wish. You could install different operating systems in them, or just different configurations, connect them via (virtual) network cards, etc. (see it in action). This is a terrific tool for testing stuff without the fear of breaking anything, and in our case we put that to practice by creating a virtual Beowulf where we can test things before committing the changes to the real Beowulf cluster. You can find a detailed guide on how to build your own virtual cluster with Xen at the SIE wiki.
SIE de Investigación y Enseñanza :: N. 7 - April 2006 - Contact: