Publications de Vincent Keller

One Joule per GFlop for BLAS2 Now!

Energy consumption is today one of the major topics that the HPC community tries to tackle. In this paper, the authors present a thought experiment aiming at building a node of a supercomputer based on a GPU (Nvidia GTX280). The paper concentrate on BLAS2 ...

American Institute of Physics2010

Computational Performance of a Parallelized Three-Dimensional High-Order Spectral Element Toolbox

Michel Deville, Jonas Marcel Lätt, Nicolas Fietier, Sohrab Jairo Kehtari, Roland Bouffanais, Vincent Keller, Christian Clémençon, Christoph Bosshard

In this paper, a comprehensive performance review of all MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of aspects with a particular emphasis on the parallel efficienc ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2009

Optimal application-oriented resource brokering in a high performance computing grid

Vincent Keller

In the world of High Performance Computing (newly renamed "High Productivity Computing"), where the race for performance is on, where the hunt for the last Flop rages and where the developers swear by the Cult of Power, the different applications have diff ...

EPFL2008

Ianos: An intelligent application oriented scheduling framework for an HPCN grid

Pierre Kuonen, Vincent Keller

We present the architecture and design of the IANOS scheduling framework. The goal of the new Grid scheduling system is to provide a general job submission framework allowing optimal positioning and scheduling of HPCN applications. The scheduling algorithm ...

Springer, 233 Spring Street, New York, Ny 10013, United States2008

An evaluation of availability comparison and prediction for optimized resource selection in the Grid

Vincent Keller

CoreGRID Network of Excellence2008

Integration of ISS into the Viola Meta-Scheduling Environment, Integrated Research in GRID Computing

Pierre Kuonen, Mark Sawley, Trach-Minh Tran, Vincent Keller

The authors present the integration of the Intelligent (Grid) Scheduling System into the VIOLA meta-scheduling environment which itself is based on the UNI-CORE Grid software. The goal of the new, integrated environment is to enable the submission of jobs ...

Springer US2007

Towards a Scheduling Policy For Hybrid Methods on Computational Grids

Pierre Kuonen, Vincent Keller, Tuan Anh Nguyen

In this paper, we propose a cost model for running partic- ular component based applications on a computational Grid. This cost is evaluated by a metascheduler and negotiated with the user by a broker. A specific set of applications is considered: hybrid m ...

Springer2006

Can a Helmholtz solver run on a cluster?

Emmanuel Leriche, Marc Anthony David Habisreutinger, Vincent Keller

Our vectorized Helmholtz solver runs at 85% efficiency on a NEC SX-5. The most time-consuming parts have been ported on SMP, NUMA, and cluster architectures. It is shown that an OpenMP version can deliver similar performance when running it on a 16 process ...

IEEE2006

Towards an Intelligent Grid Scheduling System

Pierre Kuonen, Mark Sawley, Trach-Minh Tran, Basile Schäli, Marc Torruella, Vincent Keller

The main objective of the Intelligent GRID Scheduling System (ISS) project is to provide a middleware infrastructure allowing a good positioning and scheduling of real life applications in a computational GRID. According to data collected on the machines i ...

Springer2006