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Lucas M. Schnorr
Works at Federal University of Rio Grande do Sul
Lives in Porto Alegre
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Lucas M. Schnorr

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Tenure-Track for Associate Professor in Computing
Faculty Positions at the Institute of Informatics, UFRGS, Brazil

The Institute of Informatics invites applications for tenure-track full-time faculty positions at Associate Professor level (“Professor Adjunto”). A PhD in Computer Science or a related area is required. All applicants must either hold great promise for or have a significant track record of research as well as teaching excellence. The selection process involves oral and written exams which can be taken in either English or Portuguese. 

There are two positions available for the areas of specialization below:
-    Artificial Intelligence (1 position)
-    Programming Languages and Compilers (1 position)

The closing date for applications is the 16th of June 2014. Initial (gross) monthly salary is 8,344.64 BRL (about 2700 EUR or 3700 USD).

Further information about these roles can be obtained by contacting the Head of the Applied Informatics Department, Professor Carlos Lisboa, email:calisboa@inf.ufrgs.br.

Details of the selection process can be found in the link below (in Portuguese):
http://www.ufrgs.br/progesp/progesp-1/concursos-publicos/magisterio-superior/concuros/2014/edital-17-2014  
About the Institute of Informatics: 

The Institute of Informatics is one of the largest CS departments in Brazil. It covers a wide range of research areas and it is the birthplace of the IT industry in the state of Rio Grande do Sul. The Institute offers two undergraduate degrees (Computer Science and Computer Engineering), which both rank consistently among the best in the country, according to the Brazilian Ministry of Education and independent media and market surveys. The Postgraduate Program in Computing offers MSc and PhD degrees and was awarded the highest grade by the Ministry of Education, being ranked among the top 5 programs in Brazil. 

About UFRGS: 

UFRGS (Federal University of Rio Grande do Sul) is the largest public university in the south of Brazil. UFRGS was ranked as the best university in Brazil for the second consecutive year in an evaluation made by the Ministry of Education. It has approximately 2,6K faculty members, 28K undergraduate students and 17K postgraduate students.

About Porto Alegre:

Porto Alegre is the one of largest cities in the country, and the capital city of Rio Grande do Sul, the southern region of Brazil. Porto Alegre is a modern city of 1.5 million people and one of the most important cultural, political, and economic centers of the country. It has been recognized by the UN as one of the leading capital cities in Brazil in terms of quality of life. 
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Lucas M. Schnorr

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Tomorrow, Vincent Danjean (French Debian Developer) presents a talk entitled "Debian and Free Software". More details here: http://www.inf.ufrgs.br/~schnorr/inf.html
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Lucas M. Schnorr

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Just to let you know that since February 1st 2013, I'm a tenured associate professor at the Institute of Informatics of the Federal University of Rio Grande do Sul (UFRGS) at Porto Alegre, Brazil. I keep doing computer science research and hacking in the same areas as before and I will teach compilers and programming languages starting next month. \o/
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Grande notícia, Lucas!!! Parabéns.
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Lucas M. Schnorr

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My next talk is going to happen in the CEA's Workshop on Tools for Exascale, in October the 2nd, in Bruyères-le-chatel (south of Paris, France). I'll present the work entitled "Paje for Exascale Performance Visualization Analysis" briefly detailing the history of the Paje visualization tool and associated projects, and then wrapping up with a some challenges and possible directions towards exascale performance analysis in the context of my work. As always, I hope to see you there to discuss anything related to performance analysis.

Slides here: http://goo.gl/r08A6

Directions: TGCC at CEA, Bruyères-le-Châtel, France
(more data in the link below)
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This Thursday (September 6th) Wednesday (September 5th), I present my work entitled "Analysis of Program Behavior" in the 2nd Workshop of the LICIA laboratory (a collaboration between the INF-UFRGS and the LIG). Besides giving an overview of our techniques to the performance analysis of parallel and distributed applications, I'll give some details about current and future collaborations between Brazil and France in this domain, and underline future directions towards exascale.

Here are the slides of the presentation: http://goo.gl/wDPId

You are welcomed to join me there at the LICIA workshop (no registration required, just show yourself up) to discuss about distributed systems simulation analysis, data aggregation and visualization techniques for trace analysis.

Directions: MJK building, at the University Campus of Saint-Martin d'Hères, France. September 6th Wednesday 5th, 3PM in the MJK Amphitheatre.
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In July 26th, I'll be in Dresden, Germany, to give a keynote on "Data Aggregation and Alternative Visualization Techniques for Parallel and Distributed Program Analysis".

Here are the slides of the presentation: http://goo.gl/Fy2Uu

Here's the abstract of the presentation: One of the main visualization techniques used for the analysis of parallel program behavior is the space-time view, or Gantt-chart. The visualization scalability of this technique is usually limited by the screen size and the number of processes that can be represented on it. This talk presents a combination of data aggregation techniques and different ways of visualizing trace information, achieving a better visualization scalability on the analysis. It details the spatial and temporal data aggregation performed on the traces, and then presents two interactive aggregation-enabled visualization techniques: the squarified treemap and the hierarchical graph. Application scenarios are used to illustrate these techniques in practice.

Join me there to discuss about visualization techniques for trace analysis.

Directions: TU Dresden, Center for Information Services and High Performance Computing (ZIH) 01062 Dresden Germany. The keynote starts at 3 PM in the Willers-Bau A 317 room.
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Getting public transportation directions in Porto Alegre is sometimes a real nightmare. An undergraduate student of INF-UFRGS has developed a very nice web interface to get these directions: there is even an English version for our fellow turists during the world cup. But the best part is that the implementation uses free software combined with free licenses (OSM for the maps, for instance). Kudos for him! #ufrgs   #infufrgs   #osm   #OpenStreetmap   #FreeSoftware   #portoalegre  
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The Escola Regional de Alto Desempenho (High Performance Regional School) happens every year since 2001 in Rio Grande do Sul, the southernmost Brazilian state. In 2014, the Federal University of the Pampa will host the fourteenth edition in 18-21 March 2014 with basic and advanced tutorials, plus two tracks for technical papers.

Technical paper submissions are now open and available until December 23th. If you are a undergrad or graduate student working with high performance computing, parallel processing, and related areas, please submit your work.
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In October 21st 2013, I'll present "Large-scale performance analysis visualization"  during the "Emerging Trends" section of the LICIA workshop. It'll take place in the Informatics Institute of the Federal University of Rio Grande do Sul, in Porto Alegre, Brazil. I'll talk about what are the challenges on the way towards the performance analysis of exascale applications, with a focus on visualization techniques and data aggregation.

Check the full program of the LICIA workshop in the link below.
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We just released a new version of your favourite simulation framework: SimGrid 3.8. More information on the following message sent to the simgrid-user mailing list. Enjoy!
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In September 25th and 26th, I'll be in Stuttgart, Germany, to present the invited paper "Visualizing more performance data than what fits on your screen" at The 6th International Parallel Tools Workshop, hosted by the High Performance Computing Center Stuttgart (HLRS).

Here are the slides for this presentation: http://goo.gl/9D2r4
The link for the paper should follow soon.

Here's the abstract: High performance applications are composed of many processes that are executed in large-scale systems with possibly millions of computing units. To conduct a performance analysis of such applications it is necessary to register in trace files the behavior of all processes belonging to the same application.  The large number of processes and the very detailed behavior that we can record about them lead to a trace size explosion both in space and time dimensions. The performance visualization of this data is very challenging because of the quantities involved and the limited screen space available to drawn them all. If the amount of data is not treated  properly prior to visualization, the analysis may give the wrong idea about the behavior registered in the traces. This paper is twofold: first, it details data aggregation techniques that are fully configurable by the user to control the level of details in both space and time dimensions; second, it presents two visualization techniques that take advantage of the aggregated data to scale. These features are part of the Viva open-source tool and framework, which is also briefly described in this paper.

Hope to see you there to discuss trace visualization techniques.

See the workshop website for additional details.
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Lucas M. Schnorr

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Next week (August 9th), I'll be in Porto Alegre, Brazil, to present my work around "Analysis of distributed systems simulation through trace visualization" at the INF-UFRGS (see hyperlink below).

Here are the slides of the presentation: http://goo.gl/2gDn9

Here's the abstract of the presentation: The simulation of distributed systems is used today to run large-scale application experiments in many existing and non-existing computing platforms. Since experiments run in a controlled world, a significant amount of data about the simulated application can be traced with zero intrusion. This talk addresses three techniques that are used together to deal with the analysis of simulation results: categorized resource utilization tracing, space/time data aggregation and visualization techniques. Some scenarios are presented showing how they can be mixed together to pin-point resource bottlenecks, to identify behavioral outliers and to scale up the analysis.

Join me there to discuss about distributed systems simulation analysis, data aggregation and visualization techniques for trace analysis.

Directions: INF-UFRGS, Institute of Informatics, Campus do Vale, Porto Alegre. August 9th, 2PM at the lower level of the main auditorium of the building 67.
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Work
Occupation
Associate Professor / Researcher
Employment
  • Federal University of Rio Grande do Sul
    Associate Professor, 2013 - present
  • National Council for Scientific Research (CNRS)
    Researcher, 2011 - 2013
  • National Council for Scientific Research (CNRS)
    Postdoc, 2009 - 2011
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Currently
Porto Alegre