Atos is a global leader in digital transformation with 110,000 employees in 73 countries and an annual revenue of over 12 billion Euros. European number one in Cloud, Cybersecurity and High-Performance Computing, the Group provides end-to-end Orchestrated Hybrid Cloud, Big Data, Business Applications and Digital Workplace solutions through its Digital Transformation Factory, as well as transactional services through Worldline, the European leader in the payment industry.
With its cutting-edge technologies and industry knowledge, Atos supports the digital transformation of its clients across all business sectors. The Group is the Worldwide Information Technology Partner for the Olympic & Paralympic Games and operates under the brands Atos, Atos Syntel and Unify. Atos is listed on the CAC40 Paris stock index. With its deep technology expertise and industry knowledge, the Group works with clients across different business sectors: Financial Services, Defense, Health, Manufacturing, Media, Utilities, Public sector, Retail, Telecommunications, and Transportation.

Security (BDS), contributing to this project, is the business line for Atos’ technology products and software (former BULL SAS). With a rich heritage of over 80 years of technological innovation, 2,000 patents and a 700 strong R&D team supported by the Atos Scientific Community, Atos BDS offers products and value-added software to assist clients in their digital transformation, specifically in the areas of Big Data and cyber security. Atos BDS is the European leader in High Performance Computing (HPC) and its products include the energy-efficient supercomputer that is based on a system patented by the company; BullSequana S, one of the most powerful x86 servers in the world developed to meet the challenges of Big Data.

Role in the project

Atos’ Center for Excellence in Performance Programming (CEPP) is involved in the “HPC services to prepare the community for the pre-exascale” through the coordination of and the technical involvement in the “Model portability and refactoring” project services in collaboration with the Netherlands eScience Center where HPC research software engineers offer their expertise to climate and earth system modeling groups across Europe. Within 6-month collaborative projects, we intend to provide guidance and advice regarding the performance, portability to new architectures, and scalability of selected applications. Atos’s CEPP is also involved in the performance analysis and benchmarking of weather and climate codes.

Names of the colleagues involved

Dr. Erwan Raffin, Dr. David Guibert and Georges-Emmanuel Moulard.

Relevant infrastructure and services available for climate & weather

Atos’ CEPP has got mainly access to two computing clusters hosted at the Atos France facilities. Both are continuously being upgraded to the latest technologies (CPU, accelerators as GPU, network, memory, etc.).

The first one is a medium scale system dedicated to experimentation bed. It is heterogeneous and its resources are evolving quickly in order to test early upcoming technologies.

The second one is a large scaled system based on systems in delivery testing. It is designed for performance and is continuously equipped with hundreds of nodes embedding last generations of CPUs and possibly accelerators.