Participation at SBESC 2017

16/11/2017 10:58

LAPESD’s undergraduate students have participated and presented their research works at VII Brazilian Symposium on Computing Systems Engineering (SBESC) in Curitiba/PR.

Overall, the following papers were presented during the event:

  • Uma Plataforma de Tempo Real para Priorização de Serviços IoT na Nuvem

          Alex Pinho Magalhães (UFSC), Luciana Rech (UFSC), Ricardo Moraes (UFSC), Luis Rodrigues (INESC-ID/IST)

  • Towards the Use of LITMUS-RT as a Testbed for Multiprocessor Scheduling in Energy Harvesting Real-Time Systems

          Lais Borin, Marcio Castro e Patricia Plentz (UFSC)

  • Using The Nanvix Instructional Opering Systems in Undergraduate Operating Courses

          Pedro Henrique Pena (UFSC), Henrique Cota Freitas, João Caram (PUC-MG), Marcio Castro (UFSC), Jean-François Méhaut (University of Grenoble Alpes)

 

LaPeSD/UFSC is the 2nd-place Winner of the SBAC-PAD/WSCAD Marathon of Parallel Programming 2017

25/10/2017 20:34

The LaPeSD/UFSC team (Alyson Pereira, Emmanuel Podestá Jr. and Bruno Marques) is the 2nd-place Winner of the Marathon of Parallel Programming, which was held in conjunction with International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD) and Simpósio em Sistemas Computacionais de Alto Desempenho (WSCAD) in Campinas/SP.

LaPeSD/UFSC team: Alyson, Emmanuel and Bruno (students) and Márcio (coach).

Each team consists of three students members and a coach. They have about 5 hours to solve up to 9 problems. For Local Contest, the teams can also bring printed hard copy material (e.g. books, manuals, notes, papers). Judgment is strict. In the beginning of the contest, teams receive problem descriptions and sequential (serial) solutions. Resolution involves not only the correct problem solution but also performance speedup for parallel (or distributed) version, measured according to criteria defined by committee for current contest.

Second Best Paper Award at WSCAD 2017

25/10/2017 20:21

Pedro Penna has received a Second Best Paper Award at Simpósio em Sistemas Computacionais de Alto Desempenho (WSCAD) for the paper entitled BinLPT: A Novel Workload-Aware Loop Scheduler for Irregular Parallel Loops. In this paper, Pedro presents some of the results he obtained from his master thesis at PPGCC/UFSC. This work has been done in collaboration with other researchers from PUC-Minas and Université de Grenoble Alpes (France). Pedro was advised by Prof. Márcio Castro and Prof. Patricia Plentz.

Pedro, Márcio and Henrique receiving the award during the conference dinner.

Participation at SBAC-PAD 2017/WSCAD 2017

25/10/2017 19:43

Márcio Castro’s undergraduate and graduate students have participated and presented their research works at International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD) and at Simpósio em Sistemas Computacionais de Alto Desempenho (WSCAD) in Campinas/SP. Overall, the following papers were presented during the events:

  • BinLPT: A Novel Workload-Aware Loop Scheduler for Irregular Parallel Loops, Pedro Henrique Penna (UFSC), Márcio Castro (UFSC), Patricia Plentz (UFSC), Henrique Cota Freitas (PUC Minas), François Broquedis (Université de Grenoble Alpes), Jean-François Méhaut (Université de Grenoble Alpes)
  • Automatic Partitioning of Stencil Computations on Heterogeneous Systems, Alyson D. Pereira, Rodrigo C. O. Rocha, Luiz Ramos, Márcio Castro, and Luís F. W. Góes
  • Geração Automática de Estênceis Otimizados para GPUs, Alyson Deives Pereira (UFSC), Rodrigo Caetano Rocha (University of Edinburgh), Márcio Castro (UFSC), Luís Fabrício Wanderley Góes (PUC Minas)
  • Execução Energeticamente Eficiente de Aplicações Estêncil com o Processador Manycore MPPA-256, Emmanuel Podestá Junior (UFSC), Alyson Deives Pereira (UFSC), Rodrigo Caetano Rocha (University of Edinburgh), Márcio Castro (UFSC), Luís Fabrício Wanderley Góes (PUC Minas)

 

Emmanuel’s talk.

Emmanuel’s talk.

Pedro’s talk.

Alyson’s talk.

9 papers accepted in WSCAD 2017

19/09/2017 17:47

Undergraduate and graduate students from LaPeSD had 9 papers accepted in the Simpósio em Sistemas Computacionais de Alto Desempenho (WSCAD) to be held in Campinas/SP, 2017. WSCAD is the Brazilian’s most important symposium in the High Performance Computing domain. Some of their works were carried out in conjunction with  international search partners from Université de Grenoble Alpes (France), Polytech Grenoble (France), RIKEN AICS (Japan) and University of Sheffield (UK).

People from INE/UFSC at SBAC-PAD 2017/WSCAD 2017.

Accepted papers:

  • BinLPT: A Novel Workload-Aware Loop Scheduler for Irregular Parallel Loops
    Pedro Henrique Penna (UFSC), Márcio Castro (UFSC), Patricia Plentz (UFSC), Henrique Cota Freitas (PUC Minas), François Broquedis (Université de Grenoble Alpes), Jean-François Méhaut (Université de Grenoble Alpes)
  • An Advance Resource Reservation Approach in a Cloud Database Environment
    Vinicius Segalin (UFSC), Carina F. Dorneles (UFSC), Mario Dantas (UFSC)
  • Geração Automática de Estênceis Otimizados para GPUs
    Alyson Deives Pereira (UFSC), Rodrigo Caetano Rocha (University of Edinburgh), Márcio Castro (UFSC), Luís Fabrício Wanderley Góes (PUC Minas)
  • Analyzing the I/O Performance of Post-Hoc Visualization of Huge Simulation Datasets on the K Computer
    Eduardo Inacio (UFSC), Jorji Nonaka (RIKEN AICS), Kenji Ono (RIKEN AICS), Mario Dantas (UFSC)
  • Execução Energeticamente Eficiente de Aplicações Estêncil com o Processador Manycore MPPA-256
    Emmanuel Podestá Junior (UFSC), Alyson Deives Pereira (UFSC), Rodrigo Caetano Rocha (University of Edinburgh), Márcio Castro (UFSC), Luís Fabrício Wanderley Góes (PUC Minas)
  • Modelo de Recuperação Arquitetural QoE-QoS Híbrido para Bases de Dados Distribuídas Gerenciado por Middleware
    Ramon de Souza (UFSC), Mario Dantas (UFSC)
  • The Boulitre Project: Implementing MPI-IO and HDF5 APIs Inside the IOR-Extended Benchmark
    Rémi Savary (Polytech Grenoble), Mario Dantas (UFSC), Eduardo Inacio (UFSC)
  • Um Modelo de Reconhecimento de Atividades Humanas Baseado no Uso de Acelerômetro com QoC
    Wagner do Amaral (UFSC), Mario Dantas (UFSC)
  • Saturnus: Um Simulador de Sistemas de Arquivos Paralelos
    Lucas Bordignon (UFSC), Mario Dantas (UFSC), Eduardo Inacio (UFSC), Marcos Rodrigues (University of Sheffield)

M.Sc. Defense – Ray Neiheiser

23/08/2017 10:38

Ray Willy Neiheiser  has earned his master’s degree in Computer Science from PPGCC/UFSC on 16/08/2017. His M.Sc. dissertation, entitled “Byzantine Fault Tolerant Architecture in Geographically Distributed Graph Databases”, was advised by Prof. Luciana Rech. The jury was composed by the following researchers: Prof. Carlos Maziero (UFPR) , Prof. Frank Siqueira, Prof. Ronaldo Melo and Prof. Luciana Rech.

 

Visitor PhD Student (Sandwich)

23/08/2017 10:08

Eduardo Camilo Inácio is on a Sandwich Doctorate in RIKEN – Advanced Institute for Computational Science (AICS) Kobe, Japan, in the Advanced Visualization Research Team, under supervision of researcher Jorji Nonaka, PhD, and the group leader, Prof. Kenji Ono, Dr.Eng.

His thesis “Callicrates: Optimizing the Performance of Parallel I/O and Storage Systems for Data-Intensive Applications” is advised by prof. Mario Dantas.

Paper presentation at HPCS 2017

28/07/2017 13:26

Rodrigo Rocha, one of the coauthors of the work of Alyson Pereira, presented the paper entitled Extending OpenACC for Efficient Stencil Code Generation and Execution by Skeleton Frameworks at the International Conference on High Performance Computing & Simulation (HPCS) in Genoa, Italy. This work was advised by Prof. Márcio Castro.

Paper presentation at HPCS 2017, Genoa, Italy.

In this work, Alyson proposed OpenACC extensions to enable efficient code generation and execution of stencil applications by parallel skeleton frameworks such as PSkel. The results show that our stencil extensions may improve the performance of OpenACC in up to 28% and 45% on GPU and CPU, respectively.

Technical visit to INESC-ID (Lisboa, Portugal)

20/07/2017 21:21

In the context of the Research Project Abys: Autonomic Byzantine Fault-Tolerant Systems, Ray Neiheiser, was in technical visit to INESC-ID (Instituto de Engenharia de Sistemas e Computadores, Investigação e Desenvolvimento), where he presented his work entitled “Byzantine Fault Tolerant Architecture in Geographically Distributed Graph Databases” and also attended meetings with Prof. Luis Rodrigues (picture) and other participants of that research group.  This work is advised by prof Luciana Rech.

Paper presentation at ICCS 2017

04/07/2017 09:20

Pedro Penna presented his work entitled Assessing the Performance of the SRR Loop Scheduler with Irregular Workloads at the International Conference on Computational Science (ICCS) in Zürich, Switzerland. His work is advised by Prof. Márcio Castro and Patricia Plentz.

Paper presentation at ICCS 2017, Zürich, Switzerland.

In this work, Pedro presented a performance and scalability evaluation of the recently-proposed loop scheduling strategy named Smart Round-Robin (SRR). The paper is available for download here.

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