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Friday, May 16, 2008
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Current Activities Conducted in Portugal and at UTA

In Portugal, the Knowledge Society Agency (UMIC) and the Portuguese National Science Foundation (FCT) have recently launched the Portuguese National Grid Initiative (INGRID). The objectives of this initiative include upgrading infrastructures at computing clusters and upgrading connectivity at both the backbone level and the local loop level. It also supports R&D projects in grid computing as well as demonstration projects that apply grid computing to other scientific areas, such as high energy physics, meteorology, oceanography, and health sciences, among others. Finally, INGRID also offers support for advanced training of human resources in ways that promote both multidisciplinary work and the internationalization of Portuguese projects in advanced computing.

Research centers, higher education institutions and companies that in Portugal work and conduct research in the field of advanced and grid computing include the Laboratory for Energy, Transports and Aeronautics (LAETA), the Laboratory for Particle Physics (LIP), the Center for Computational Physics at the University of Coimbra (CFC-UC), the Dependable Systems Group (DSG) of the Department of Computer Science at the Universidade de Coimbra (CS-UC), the University of Aveiro (UA), the University of Porto (UP), the Computer Science Department at Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa (CS-FCTUNL), the Department of Computer Science at the University of Minho (CS-UM) and Instituto Superior Tecnico of the Technical University of Lisbon (ISTUTL; including IDMEC-Institute for Mechanical Engineering, ICIST- Institute for Structural Engineering, Territory and Construction, and the Centre for Plasma Physics). Also, the software company Critical Software (CSW), a spin-off from University of Coimbra.

LAETA, the Associate Laboratory for Energy, Transports and Aeronautics is developing a range of grid applications, including initiatives in “GRID-Turbulence”, parallel processing for concurrent structural and material optimization, the human motion “BioGrid”, parallelization algorithms for image processing and mesh generation in biomedical applications and error estimation for large scale problems. Some of these activities are under development in close collaboration with ICIST and other research units at ISTUTL.

LIP is a partner in the following international projects: Worldwide CERN-LHC Computing Grid, EGEE-2 - Enabling Grids for E-sciencE, Int.EU.Grid - Interactive European Grid, and Project EELA - E-infrastructure shared between Europe and Latin America. LIP is the recognized Grid Certification Authority for Portugal. Under the EGEE-2 LIP shares responsibilities on operations, user and site support, global support, core services,authentication services, pre-production, production cluster, dissemination, training and deployment coordination. LIP is deploying a TIER-2 Grid Computing Unit planned to integrate 1000 CPU’s.

CFC-UC hosts and manages two HPC clusters (one soon to be managed by LIP and to be part of the EGEE/LCG grid). Its research topics, which use HPC/GRID resources, include Lattice Quantum Chromodynamics and Time-Dependent Density Functional Theory (TDDFT) applied to nano-systems. Members of the CFC-UC play an important role in the maintenance and development of the code OCTOPUS used in TDDFT applications.

At DSG-CS-UC the research topics include dependability benchmarking for advanced and grid middleware and grid services, self-healing techniques for grid middleware, fault-tolerance techniques for desktop grid middleware, sabotage-tolerance and trust-management and virtualization techniques for grid applications.

CSW developed WMPI II, an advanced version of Message Passing Interface (MPI) that supports code parallelization for high performance clusters. CSW participated in the HICOD2000 ESA project, an open architecture to produce JPEG2000 coded digital images from Earth Observation (EO) products using high-performance OGSA Grid environment. Currently CSW participates in the project “GODIS - Grid On Demand” project that aims to operate the advanced infrastructure used at ESRIN, which will provide external users the exploitation of high performance computing resources and easy access to earth observation data.

At University of Aveiro (UA), faculty and researchers at the Department of Electronics, Telecommunications and Informatics (DETI) and related Research Units IT and IEETA run research projects in the area of Grid Computing and Applications, namely the EU´s funded projects AKOGRIMO and the project INFOGENEMED, which was coordinated by UA. In addition, it should be noted the involvement in the HealthGrid Association, which has been associated with the publication of a white paper on the subject, and the BIN network (Brain Imaging network, involving Universities of Minho, Porto, Coimbra and Aveiro and financed by the Portuguese Science Foundation), as well as the collaboration with the EEGE project and the use of Grid Computing in the healthcare. The DETI is also involved in a joint PhD program in the scientific Area of Informatics with the Universities of Porto and Minho, which considers the domain of Grid Computing. Applications are also under development in several other departments and research units (Mathematics, Physics, Environment, Biology).

At University of Porto, UP, several initiatives are ongoing concerning Advanced Computing, including the establishment and deployment of a University Campus Grid (the key contact person being Ligia Ribeiro), in order to support applied research in science and engineering, as well as several research projects on computational science and engineering and on emerging technologies for Advanced Computing (namely at FEUP - Faculdade de Engenharia da Universidade do Porto and in the FC - Faculdade de Ciências, the key contact person being Fernando Silva). In addition, the University of Porto is also involved in a collaboration with U. Minho and U. Aveiro in a joint doctoral degree in Computer Science, where emerging Advanced Computing technologies play an important role.

At CS-FCTUNL, research takes place in the context of the two research centers hosted by the department: the Center for Informatics and IT (CITI) and the Center for Artificial Intelligence (CENTRIA). At CITI, directed by Professor José Cardoso e Cunha, new paradigms for global, large-scale and distributed computing are being investigated with respect to the design of new abstractions, programming models, software concepts, tools and environments, system architectures, and networks (including mobile, overlay and peer to peer networks). Research in advanced and grid computing is ongoing at three main levels, both at FCTUNL and through international cooperation: (i) abstractions, methodologies, and tools to facilitate the development of large-scale and dynamic grid applications; (ii) distributed and advanced computing systems and their application in science and engineering through multidisciplinary partnerships, namely involving other faculty at FCTUNL such as those in environment, geology, and materials science, and Edisoft, a company close to the FCTUNL campus with a strong R&D component and expertise in advanced computing projects; (iii) education at M.Sc. and Ph.D levels, with the responsibility for a M.Sc. course on advanced and grid computing systems and Applications, in the FCTUNL Master in Computer Science, and also involved in an international project on curriculum development for advanced computing, involving graduation of PhD students.

CS-UM has been active in parallel and distributed computing for more than a decade. R&D follows software engineering approaches while keeping the original concerns on application-oriented performance and scalability and on the deployment of HPC systems for computational science. Research focuses on the theoretical and applied issues critical to parallel and distributed computing that allow for exploiting medium to large HPC and communications systems. Current applied R&D projects address the following issues: programming paradigms and tools for portable/pluggable parallel and advanced computing (Java and Aspect-oriented); grid-enabled frameworks to run multi-paradigm interactive applications; adaptive computing models for parallel global illumination in image rendering; computer vision techniques based on parallel vector co-processing (gpGPU's); models and tools to port advanced-enabled scientific applications; large scale distributed information retrieval and data mining applications; high-performance distributed dictionaries; simulation of huge computer networks protocols and applications; modeling and parallel simulation of large forest fires on a grid of clusters based on grid-aware geo-referenced data, to support real-time decisions in civil protection environments.

CS-UM is currently managing a multi-disciplinary computing infra-structure based on interconnected computing clusters of SMP nodes (EM64T-based CPU's) with fast internode links (Myrinet 10G), to be shortly linked to national and European Grids. UM is currently running the first joint doctoral program in Portugal in computer science, together with University of Oporto and University of Aveiro. Likewise, the development of a joint Ph.D. program between Portugal and UT-Austin in the area of advanced computing is a subject worth further consideration and implementation.

At Instituto Superior Técnico (IST), the Laboratory and Simulation of Energy and Fluids (LASEF) at IDMEC performs research in the field of fluid dynamics that resorts heavily to the use of high-performance and grid computing tools. In addition, IDMEC-Institute for Mechanical Engineering, is entering into a major research initiative with ICIST- Institute for Structural Engineering, Territory and Construction in grid applications. Also, the Centre for Plasma Physics at IST (PPC-IST) is developing an e-science program aimed at training scientists to use grid computing tools and interfaces to access high-performance shared resources for simulation purposes and for aided visualization of scientific results, the key contact person being Luis Oliveira e Silva. These activities are developed in international consortia, namely the Osiris consortium, leaded by UCLA and IST, which develops applications for numerical simulation in plasma physics. PPC-IST has also recently established a new partnership with the super-computing Center MareNostrum in Barcelona, for simulation and analysis of scientific results from theoretical models for particle acceleration. PPC-IST is currently setting up its own grid computing cluster with 256 CPU cores.

At UT-Austin, research in the area of advanced and grid computing is mostly performed at The Institute for Computational Engineering and Sciences (ICES), the Department of Computer Science (CS-UTA), and the Department of Electrical and Computer Engineering (ECE-UTA). In addition, UT-Austin hosts one of the most powerful advanced computing centers in the world, the Texas Advanced Computing Center (TACC).

At ICES, several faculty members are involved in large-scale computational science simulations. For example, Professor Mary Wheeler has a large group that simulates oil-reservoirs, and Professors Tinsley Oden and Tom Hughes lead a group that is working on computational medicine in collaboration with the M.D. Anderson Cancer Center in Texas. Faculty in ECE, such as Professors Vijay Garg, Margarida Jacome, and Gustavo de Viciana are conducting research on a variety of techniques for fault tolerance to hardware, software and data faults, load balancing and resource allocation in physical and overlay networks, and sensor networking and ubiquitous computing involving different models for gathering information, and distributing computation and data in a physical environment. Faculty in CS, such as Professors Keshav Pingali and Chandrajit Bajaj, are working on application-level checkpoint-restart techniques for long-running computational science applications, and visualization.

TACC is engaged in grid computing research and development and acts as a key player in operational grids such as the TeraGrid and Open Science Grid to service national users and the Texas Internet Grid for Research and Education (TIGRE) to service users in Texas. At TACC, Dr. Edward Walker develops techniques for constructing virtual clusters, user-level file systems, and overlay networks. Dr. Warren Smith investigates performance prediction and scheduling of distributed systems. Dr. Ashok Adiga researches scheduling and desktop grids. Dr. Kelly Gaither develops methods for remote visualization. Dr. Kent Milfeld is a leader of the GridChem project that allows users to configure computational chemistry simulations, execute them across a number of distributed clusters, and analyze the results. Eric Roberts and Maytal Dahan build web portals for grids such as TeraGrid and TIGRE as well as science gateways for flood modeling and visualization.

The Grid Computing Group at TACC has several R&D projects in progress and receives funding from four federal agencies (NSF, NASA, DoE, and DoD) to support its work. The R&D activities are focused on four main objectives: Advanced resources information data storage/archival system; Web services for Grids; Grid-based portals; and deployment, configuration, and enhancement of Grid schedulers. These activities are targeted towards three main Grod deployment efforts: a UT campus advanced, the High Performance Computing Across Texas HiPCAT Texas Internet Grid for Research & Education (TIGRE), and NSF Grid programs at NPACI, including the TeraGrid. The R&D projects will also contribute to emerging DoD and DoE Grids and to the NASA Information Power Grid (IPG).

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