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This workshop is part of the collaborative project between the CNPq/Brazil - Inria/France which involves Brazilian and French researchers in the field of computational science and scientific computing. The general objective of the workshop is to setup a Brazil-France collaborative effort for taking full benefits of future high-performance massively parallel architectures in the framework of very large-scale datasets and numerical simulations. To this end, the workshop proposes multidisciplinary lectures ranging from exploiting the massively parallel architectures with high-performance programming languages, software components, and libraries, to devising numerical schemes and scalable solvers for systems of differential equations.

The prevalence of modern multicore technologies has made massively parallel computing ubiquitous and offers a huge theoretical potential for solving a multitude of scientific and technological challenges. Nevertheless, most applications and algorithms are not yet ready to utilize available architecture capabilities. Developing large-scale scientific computing tools that efficiently exploit these capabilities will be even more challenging with future exascale systems. To this end, a multi-disciplinary approach is required to tackle the obstacles in manycore computing, with contributions from computer science, applied mathematics, and engineering disciplines.

Such is the framework of the collaborative project between the CNPq - Inria which involves Brazilian and French researchers in the field of computational science and scientific computing. The general objective of the project is to setup a Brazil-France collaborative effort for taking full benefits of future high-performance massively parallel architectures in the framework of very large-scale datasets and numerical simulations. To this end, the project has a multidisciplinary team with computer scientists who aim at exploiting the massively parallel architectures with high-performance programming languages, software components, and libraries, and numerical mathematicians who aim at devising numerical schemes and scalable solvers for systems of Partial Differential Equations (PDEs). The driving applications are related to important scientific questions for the society in the following 4 areas: (i) Resource Prospection, (ii) Reservoir Simulation, (iii) Cardiovascular System, and (iv) Astronomy

The researchers are divided in 3 fundamental groups in this project: (i) Numerical schemes for PDE models; (ii) Scientific data management; (iii) High-performance software systems.

Aside research goals, the project aims at making overall scientific results produced by the project available to the Brazilian and French scientific communities as well as to graduate students, and also establishing long-term collaborations beyond the current project. To this end, another objective of the project is the integration of the scientific results produced by the project within a common, user-friendly computational platform deployed over the partners' HPC facilities and tailored to the 4 aforementioned applications.

9:30-10:30

Welcome coffee

10:30-10:45

Workshop introduction

Stéphane Lanteri (Inria) and Frédéric Valentin (LNCC)

Stéphane Lanteri (Inria) and Frédéric Valentin (LNCC)

10:45-11:15

Inria’s perspectives on Brazil-French cooperation after HOSCAR

Thierry Priol, European and International Partnership Department

Thierry Priol, European and International Partnership Department

11:15-11:45

LNCC’s perspectives on Brazil-French cooperation after HOSCAR

Pedro Dias and Frédéric Valentin, LNCC

Pedro Dias and Frédéric Valentin, LNCC

11:45-12:30

Achievements and perspectives on numerical schemes for wave propagation problems

Stéphane Lanteri (Inria) and Frédéric Valentin (LNCC)

Stéphane Lanteri (Inria) and Frédéric Valentin (LNCC)

12:30-14:00

Lunch

14:00-14:45

Overview talk - Group 1. A review of NACAD’s developments within HOSCAR project

Alvaro Coutinho, COPPE/UFRJ

Alvaro Coutinho, COPPE/UFRJ

14:45:15:30

MHM for time-domain electromagnetics

Raphael Léger and Claire Scheid, Inria SAM

Raphael Léger and Claire Scheid, Inria SAM

15:30-16:00

Coffee break

16:00:16:30

MHM for time-domain elastodynamics

Marie-Héelène Lallemand-Tenkes, Inria SAM

Marie-Héelène Lallemand-Tenkes, Inria SAM

16:30-17:00

Distributed mesh and graph computations within PaMPA and PT-Scotch libraries

Cédric Lachat, Inria BSO

Cédric Lachat, Inria BSO

17.30

End of 1st Day

9:30-10:15

Guest talk: High Performance Computational Geosciences at BRGM

Fabrice Dupros, BRGM

Fabrice Dupros, BRGM

10:15-11:00

Overview talk - Group 2 Supporting efficient data analysis on numerical simulation output

Hermano Lustosa and Fabio Porto, LNCC and Patrick Valduriez, Inria SAM

Hermano Lustosa and Fabio Porto, LNCC and Patrick Valduriez, Inria SAM

11:00-11:30

Coffee Break

11:30-12:00

Integrating Big Data and relational data with a functional SQL-like query language

Patrick Valduriez, Inria SAM

Patrick Valduriez, Inria SAM

12:00-12:30

Analyzing related raw data files through dataflows

Marta Mattoso, COPPE/UFRJ

Marta Mattoso, COPPE/UFRJ

12:30-14:00

Lunch

14:00-14:30

Modelling of elastic Helmholtz equations by a hybridizable discontinuous Galerkin (HDG) method for geophysical applications

Marie Bonnasse-Gahot, Inria BSO and SAM

Marie Bonnasse-Gahot, Inria BSO and SAM

14:30-15:00

Implicit hybridizable discontinuous Galerkin method for time-domain electromagnetics

Alexandra Christophe-Argenvillier, Inria SAM

Alexandra Christophe-Argenvillier, Inria SAM

15:00-15:30

Hybrid dimensional Darcy flow in a fractured porous medium and parallel implementation in code ComPass

Feng Xing, Inria SAM

Feng Xing, Inria SAM

15:30-16:00

Coffee break

16:00-16:30

Simulation of overdecomposition based load balancing for parallel applications

Rafael Keller Tesser, UFRGS

Rafael Keller Tesser, UFRGS

16:30-17:00

Implementation of a flexible, scalable simulator for the family of MHM methods

Antonio Tadeu Gomes, LNCC

Antonio Tadeu Gomes, LNCC

17:00

End of 2nd Day

9:30-10:15

Guest talk: HPC-based multi-physics simulations for the energy realm

Mariano Vazquez, BSC

Mariano Vazquez, BSC

10:15-10:45

Julien Diaz, Inria BSO

10:45-11:30

Coffee Break

11:30-12:00

Parallel hybrid implementation of an hybrid sparse linear solver

Luc Giraud, Inria BSO

Luc Giraud, Inria BSO

12:00-12:30

Blocking strategy optimizations for sparse direct linear solver on heterogeneous architectures

Pierre Ramet, Inria BSO

Pierre Ramet, Inria BSO

12:30-14:00

Lunch

14:00-15:00

Visit of Inria’s Virtual Reality Lab

15:00-17:00

Internal meeting - From HOSCAR to HPC4E

17:00

End of 3rd Day

20:30

Dinner in Antibes

9:30-10:15

Guest talk: No escape, we have to collaborate

Xavier Vigouroux, Atos

Xavier Vigouroux, Atos

10:15-11:00

Overview talk - Group 3 High-performance software systems

Jean-Fran ̧cois Méhaut, Inria GRA and Philippe Navaux, UFRGS

Jean-Fran ̧cois Méhaut, Inria GRA and Philippe Navaux, UFRGS

11:00-11:30

Coffee Break

11:30-12:00

FPHadoop: efficient execution of parallel jobs over skewed data

Reza Akbarinia, Inria SAM

Reza Akbarinia, Inria SAM

12:00-12:30

BOAST : performance portability using meta-programming and auto-tuning

Brice Videau, Inria GRA

Brice Videau, Inria GRA

12:30-14:00

Lunch

14:00-16:30

Summary of the Workshop

16:30

End of the Workshop

17:00

End of 4th Day

**French Organizing Committee:**

Stéphane Lanteri, Inria Sophia Antipolis - Méditerranée

**Brazilian Organizing Committee**

Pedro Dias, LNCC

Frederic Valentin, LNCC

Antônio Tadeu Gomes, LNCC

Fabio Porto, LNCC