managed by Olivier Glück

/!\ THIS IS A WORK IN A PROGRESS /!\

Overview & Goals

This Research Topic strongly interacts with the other three fundamental topics. It focuses on the application of the solutions to the grid context and on their implementation in a real environment such as the national research instrument Grid'5000. Indeed, we believe that the precise structure of future applications and services is difficult to design without building large-scale instruments and systems for real use based on real and performant hardware. Therefore, in this Research Topic, we develop prototypes and deploy them within the Grid'5000 testbed. For example, we design special measurement- and routing-systems at the edge of each Grid'5000 site to explore new approaches or difficult problems alike.

In this topic, investigation strongly focuses on the usage and evolution of the Grid'5000 instrument:

• Studies of the interactions between MPI and the transport layer in Wide Area Networks
• Design, development and evaluation of a dynamic bandwidth-provisioning service
• Studies on the virtual private execution infrastructure concept for grid- and cloud-computing environments
• Large-scale deployment and evaluation of a high-speed-network measurement infrastructure.

RESO pursues researches for improving communications in grid environments. Thanks to systematic experiments of the behavior of MPI in large-scale invironment, we merge optimizations of current implementations and propose new optimizations in the communication layers in order to execute MPI applications on the grid more efficiently. We also study the impact of using the TCP protocol for WAN communications (inter-site communications in the grid) and its interactions with MPI applications.

Projects & Partners

Results & Software

• Design of a network service for dynamic bandwidth-provisioning in very-high-speed environments
• Specification of a network-resource scheduling, virtualization, and reconfiguration component in a service-oriented approach (Carriocas)
• Definition and development of MPI5000, an improvement of a gateway for MPI over a Wide Area Network
• Traffic monitoring of LCG's (CERN LHC Grid) 10Gb/s link at a packet resolution to characterize grid traffic
• Design and development of the HIPerNet software for network-aware virtual cluster management tool
• Pursuing the collaborations for the development and usage of Grid'5000's international optical interconnections to the Netherlands (DAS3) and Japan (Naregi) in collaboration with RENATER
• Design and development of a metrology infrastructure for fine-grained traffic monitoring in Grid'5000