CRUX PPC 3.0 released!

CRUX PPC LogoCRUX PPC 3.0 is now available. Toolchain ships with Graphite support (PPL backend) and also with LTO (Link Time Optimization).
CRUX PPC 3.0 is released as two different archives: 32bit and 64bit. The 32bit version is based on a single lib toolchain instead the 64bit one comes with a multilib toolchain. These two versions share the same ports tree.

Download and more information on the official website:


gVirtuS: the first beta release

We are proud to announce the first beta release of gVirtuS.

gVirtuS allows an instanced virtual machine to access GPGPUs in a transparent way, with an overhead  slightly greater than a real machine/GPGPU setup. gVirtuS is hypervisor independent, and, even though it currently virtualizes nVIDIA CUDA based GPUs.

The software, developed for research applications, is provided as it is.

We encourage using and testing it in order to collect useful feedbacks and suggestions.

Take a look to the gVirtuS project page:

CRUX PPC 2.6 released

CRUX PPC 2.6 is now available. It works on Apple 32bit “NewWorld” G3/G4 and Apple 64bit G5, Genesi PegasosII and Efika, Acube Sam440ep, IBM RS/6000 CHRP (604e), YDL Powerstation, IBM Intellistation POWER, and IBM pSeries RS64/POWERn.
CRUX PPC 2.6 is, as usual, released via two different installation ISO: 32bit and 64bit. The 32bit version is based on a single lib toolchain instead the 64bit one comes with a multilib toolchain. These two versions share the same ports tree.
See the download page!

VMSocket: a mechanism to expose UNIX Sockets in KVM Virtual Machines

VMSocket is a mechanism to expose UNIX Sockets (sockets in AF_UNIX domain) from the host operating system to the KVM’s virtual machines.

It provides a really fast communication channel between host and guests os. It can ben used for communication that needs to be fast, such as HPC (High Performance Computing) software solutions and so on.

The socket is bounded on the host os and the guests can connect to the socket using special drivers. At this time only the driver for linux is ready.

The sources of the patched qemu to support vmsocket are found on:

Read more of this post

Netinstalling CentOS using Attansic L1 Gigabit Ethernet (aka HOWTO modify Red Hat based iso's bootkernel)

I needed to install CentOS 5.3 on a workstation with an “Attansic Technology Corp. L1 Gigabit Ethernet Adapter”, the driver for this kind of adapter (atl1e) was introduced in the version 2.6.26 of the kernel but CentOS 5.3 uses the 2.6.18 one. ElRepo provides an rpm with the atl1e.ko module backported for using with the 2.6.18 provided in CentOS so what I’m going to do is to insert the module taken from ElRepo on the CentOS netinstall iso.

Read more of this post

Fedora 11 Release Party Napoli

When and Where

  • Thursday, June 18
  • 11:30 am onwards
  • Location: University of Naples “Parthenope” – Faculty of Science and Technlogies, Centro Direzionale di Napoli Isola C4

Responsible Ambassadors


  1. Gianluca Varisco
  2. … add yourself here! …


  • 11.30: “Welcomes to the conference” by Prof. Giulio Giunta
  • 11.50: “Fedora 11, New Features” by Gianluca Varisco
  • 12.20: “Free Software availment in italian universities” by Carlo Palmieri
  • 12.40: “Presentation of the new magazine PaperUni” by Marielvira Matrone
  • 13.10: “Open lunch and free speech”
  • 14.30: “Workshop: realizing a scientific cluster using Fedora” by Giuseppe Agrillo
  • 15.30: “About the NaLUG” by Gianfilippo Giannini
  • 15.50: “The Fedora project, the community, the ambassadors” by Gianluca Varisco
  • 16.20: “Future projects, distribution of gadgets and final regards” by Giuseppe Coviello

  • 23.00: Party restarting at Arenile Reload




  • Contact: Giuseppe Coviello (