From EGI Knowledge Base
In EU FP7, the DEISA Consortium continues to support and further develop the distributed high performance computing infrastructure and its services through the DEISA2 project funded for three years as of May 2008. Activities and services relevant for Applications Enabling, Operation, and Technologies are continued and further enhanced, as these are indispensable for the effective support of computational sciences in the HPC area. The service provisioning model will be extended from one that supports single projects to one supporting Virtual European Communities. Collaborative activities will be carried out with new European and other international initiatives.
Of strategic importance is the cooperation with the PRACE project which is preparing for the installation of a limited number of leadership-class Tier-0 supercomputers in Europe. The key role and aim will be to deliver a turnkey operational solution for a future persistent European HPC ecosystem, as suggested by ESFRI. The ecosystem will integrate national Tier-1 centres and the new Tier-0 centres
|No. of Partners||10|
|No. of Countries||7|
|Cost (€ per Year)||6,243,333|
|EU Funding (€ per Year)||3,413,333|
|FTEs (per Year)||13.5|
 DEISA Background
In spring 2002 the idea emerged to overcome the fragmentation of supercomputing resources in Europe both in terms of system availability and in the necessary skills for efficient supercomputing support. The establishment of a distributed European supercomputing infrastructure was proposed. In May 2004 the DEISA project was started as a EU FP6 Integrated Infrastructure Initiative by eight leading European supercomputing centres. In 2006 DEISA was joined by three additional leading centres. Through the joint efforts, DEISA reached production quality soon after to support leading edge capability computing for the European scientific community. DEISA has also contributed to a raising awareness of the need for a persistent European HPC infrastructure as recommended in the ESFRI report 2006.
 DEISA Extreme Computing Projects
The DEISA Extreme Computing Initiative (DECI), launched in 2005, continues to support the most challenging supercomputing projects in Europe which require the special resources and skills of DEISA. A European Call for Extreme Computing Proposals is published annually in spring. By selecting the most appropriate supercomputer architectures for each project, DEISA is opening up the currently most powerful HPC architectures available in Europe for the most challenging projects. This mitigates the rapid performance decay of a single national supercomputer within its short lifetime cycle of typically about 5 years, as implied by Moore’s law. So far scientists from 15 different European countries with collaborators from four other continents have benefited.
 DEISA2 Essentials
In the follow-up FP7 project DEISA2, the single-project oriented activities (DECI) will be qualitatively extended towards persistent support of Virtual Science Communities. DEISA2 will provide a computational platform for them, offering integration via distributed services and web applications, as well as managing data repositories. Emphasis will be put on collaborations with research infrastructure projects established by the ESFRI, and European HPC and Grid projects. The activity reinforces the relations to other European HPC centres, leading international HPC centres in Australia, China, Japan, Russia and the United States, and leading HPC projects worldwide. For supporting international science communities across existing political boundaries, DEISA2 participates in the evaluation and implementation of standards for interoperation.
 DEISA2 Strategy
A two-fold strategy is applied:
- Consolidation of the existing DEISA infrastructure by guaranteeing the continuity of those activities and services that currently contribute to the effective support of world-leading computational science in Europe.
- Evolution of this European infrastructure towards a robust and persistent European HPC ecosystem, by enhancing the existing services, by deploying new services including support for European Virtual Communities, and by cooperating and collaborating with new European initiatives, especially PRACE that will enable shared European PetaFlop/s supercomputer systems.
DEISA2 focuses on the provisioning and operation of infrastructure services which will allow its users to work efficiently within a distributed high performance computing environment.
 Coordination Activities
The focus of Coordination Activities is on the initiation and development of external relations with partners, organisations and communities, as well as dissemination that will target investors, partners, stakeholders, science communities and the public. Furthermore the training of users to enable them to use the DEISA infrastructure is done.
 Service Activities
The essential services to operate the infrastructure and support its efficient usage are organized in three Service Activities: Operations refers to operating the infrastructure including all existing services, adopting approved new services from the Technologies activity, advancing the operation of the DEISA HPC infrastructure to a turnkey solution for the future European HPC ecosystem by improving the operational model and integrating new sites. Technologies covers: Monitoring of technologies already in use in the project, identifying and selecting technologies of relevance for the project, evaluating technologies for pre-production deployment, planning and designing specific sub-infrastructures to upgrade existing services or deliver new ones based on approved technologies. Applications cover the areas applications enabling and extreme computing projects, environment and user related application support, and benchmarking. Applications enabling focuses on enhancing scientific applications from the DEISA Extreme Computing Initiative (DECI), Virtual Communities and EU projects. Environment and user related application support addresses the maintenance and improvement of the DEISA application environment and interfaces, and DEISA-wide user support in the applications area. Benchmarking refers to the provision and maintenance of a European Benchmark Suite for supercomputers.
 Research and Development Activities
Two Joint Research Activities (JRA) complement the portfolio of service activities. JRA1 (Integrated DEISA Development Environment) aims at an integrated environment for scientific application development, based on a software infrastructure for tools integration, which provides a common user interface across multiple computing platforms. JRA2 (Enhancing Scalability) aims at the enabling of supercomputer applications for the efficient exploitation of current and future supercomputers, to cope with a production infrastructure characterized by an aggressive parallelism on heterogeneous HPC architectures at a European scale.
 User Communities
In DEISA2, the single-project oriented activities (DECI) will be qualitatively extended towards persistent support of Virtual Science Communities. This extended initiative will benefit from and build on the experiences of the DEISA scientific Joint Research Activities where selected computing needs of various scientific communities and a pilot industry partner were addressed. Examples of structured science communities with which close relationships are planned to be established are EFDA and the European climate community. DEISA2 will provide a computational platform for them, offering integration via distributed services and web applications, as well as managing data repositories.
 International Aspects
Emphasis will be put on contacts to research infrastructure projects established by the ESFRI, and the European HPC and Grid projects such as PRACE and EGEE, respectively. The activity reinforces the relations to other European HPC centres, leading international HPC centres in Australia, China, Japan, Russia and the United States, and leading HPC projects worldwide, such as TeraGrid and NAREGI. For supporting international science communities traversing existing political boundaries, DEISA2 will participate (e.g. in the Open Grid Forum OGF) in the evaluation and implementation of standards for interoperation. Further reading: www.deisa.eu
 DEISA members
 Principal partners
- BSC, Barcelona, Spain
- CINECA, Bologna, Italy
- CSC, Espoo, Finland
- ECMWF, Reading, UK
- EPCC, Edinburgh, UK
- FZJ, Juelich, Germany
- HLRS, Stuttgart, Germany
- IDRIS-CNRS, Orsay, France
- LRZ, Garching, Germany
- RZG, Garching, Germany
- SARA, Amsterdam, The Netherlands
 Associated partners
- CSCS, Manno, Switzerland
- KTH, Stockholm, Sweden
- JSCC, Moscow, Russia
Hermann Lederer (Lederer@rzg.mpg.de) and Stefan Heinzel (Heinzel@rzg.mpg.de) Garching Computing Centre of the Max Planck Society (RZG)
The DEISA Consortium thanks the European Commission for support through FP6 contracts RI-508830 and RI-031513, and FP7 contract RI-222919.