"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
https://research.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.