Network Interconnect for Exascale Systems

Network: the next big bottleneck?

Network interconnect is the backbone of a supercomputer, connecting together the compute nodes

To reach the exascale with a reasonable power consumption, exascale supercomputers will include a huge number of nodes, and they will be hybrid nodes integrating GPUs and CPUs

Integrating heterogeneous nodes requires a smarter interconnect, with additional features to accelerate connectivity between servers and storage

Those are the challenges that RED-SEA is tackling to design the network interconnect that will power future European Exascale systems

The RED-SEA blog

By the RED-SEA experts

Latest blog

  • COSSIM framework
    An Open-Source Integrated Solution to Address the Simulator Gap for Parallel Heterogeneous Systems Authors: Nikolaos Tampouratzis (EXAPSYS), Yannis Papaefstathiou (EXAPSYS). Nowadays, highly parallel and distributed computing systems (i.e., Cloud and HPC systems) are growing in capability at an extraordinary rate, incorporating processing systems that vary from simple microcontrollers to high performance units connected with each other through numerous networks. One of the main problems the designers of such systems face is the lack of simulation tools that can offer realistic insights beyond simple functional testing, such as the actual performance of the nodes, accurate overall system timing, power/energy estimations, and […]


  • RED-SEA’s 3rd face-to-face meeting
    On 8 and 9 February 2023 the RED-SEA team is gathered for our third face-to-face meeting in sunny Sophia Antipolis, near Nice. Thank you Atos for hosting us!
  • New blog article on VEF traces
    New blog article by RED-SEA experts! Part of our work to prepare a new-generation network interconnect for the future European Exascale systems consists in evaluating new designs through simulation. We’re […]


  • Teratec Forum 2023
    31 May-1st June 2023 – Paris, France – For its 18th edition, the Teratec Forum […]
  • ISC 2023
    21-25 May 2023 – Hamburg, Germany – In 2023, the EuroHPC JU is organising a […]
  • EuroHPC Summit 2023
    20-23 March 2023 – Gothenburg, Sweden – The EuroHPC Summit is an annual event gathering […]

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Our partners the other SEA projects

The EuroHPC projects DEEP-SEA, IO-SEA and RED-SEA have joined forces to develop complementary European technologies for future heterogeneous exascale supercomputing architectures.

The SEA projects in the Modular Supercomputing Architecture:

An introduction to the SEA projects and their cooperation:

A summary of the SEA projects and their collaboration