This year, the annual Sitola laboratory Seminar (SitSem 2011) took place in pension Cikhaj (Zdar nad Sazavou) on 15. — 17. September 2011.

During the seminar, there were held several presentations (including invited talks, students’ talks as well as panel discussions) supplemented by several leisure activities.

Invited talks:

• Lenka Carr-Motyčková (UPOL) – Grafy a algoritmy v komunikačních sítích
• Pavel Škoda (CESNET) – Optická komunikační technika

Students’/employees’ talks:

• Jiří Matela – Komprimujeme rychleji
• Tomáš Golembiovský – Modelování tenkých struktur
• Michal Procházka – Perun a Pakiti
• Vít Rusňák – Metody interakce se skládanými displeji
• Pavel Troubil – Metody generování síťových topologií
• Jan Fousek – Simulace USCT
• Matúš Madzin – Sémantická ekvivalence MSC diagramů
• Milan Kabát – Koncept Network Coding a jeho aplikacie
• Jiří Filipovič – Co můžete očekávat od GPU akcelerace?

Panel discussions:

• David Antoš – Kurs sociální konformity
• Luděk Matyska, Petr Holub – Projekty, projektová organizace

Our laboratory participated in a unique experiment in which musicians Michael Dessen, Mark Dresser and Myra Melford performed for two audiences at the same time in spite of the fact that the listeners as well as the jazz trio itself were divided between two stages 150 kilometres apart.

The two unique music performances that took place in California on 16 and 17 April were made possible by the UltraGrid technology, in development by a team of researchers of CESNET, the association of Czech universities and the Academy of Sciences of the Czech Republic. The unusual cultural event was a part of TeleMotions: A Networked Intermedia Concert, made possible by the University of California Center for Research in Computing and the Arts (CRCA). In professional terms, this was a very demanding operation: achieving the effect of a normal concert without all the musicians being present on the same stage is not an easy task, because hearing is much more sensitive to delay and all sorts of failures than eyesight. Yet the experiment was a success, pleasing the musicians, the audiences and the network specialists.

Related links:

• report by CRCA
• report by University of California
• video

In the current semester, one of the groups in course PV177 is directed at the topic of peer-to-peer networks. For these students, we provide a possibility to test their knowledge in practice by taking part in a P2P game which is currently being prepared.

For this purpose, a virtual infrastructure consisting of 60 nodes and with simulated real network conditions has been created. The students should create a system for content sharing. However, they are not supposed to write the system from scratch, as they will be provided with a skeleton of peer-to-peer application, which can be freely (in the extent of Gentlemen’s agreement) modified. Resulting implementations would be evaluated in terms of effectivity and robustness.