Pre-exascale accelerated application development: The ORNL Summit experience

An accelerated Cluster-Architecture for the Exascale

Clusters are dominating high-performance computing (HPC) today. The success of this architecture is based on the fact that it profits from the improvements provided by main-stream computing well known under the label of Moore’s Law. But trying to get to Exascale within this decade might require additional endeavors beyond surfing this technology wave. In order to find a possible direction we re...

Application Modernization for the Exascale Era

9 Application Modernization at LLNL and the Sierra Center of Excellence J. Robert Neely and Bronis R. de Supinski In 2014, Lawrence Livermore National Laboratory began acquisition of Sierra, a preexascale system from IBM and Nvidia. Its use marks a significant shift in direction, introducing the concept of heterogeneous computing via GPUs. An overview of LLNL’s overall application strategy focu...

Simulating Application Resilience at Exascale

The reliability mechanisms for future exascale systems will be a key aspect of their scalability and performance. With the expected jump in hardware component counts, faults will become increasingly common compared to today’s systems. Under these circumstances, the costs of current and emergent resilience methods need to be reevaluated. This includes the cost of recovery, which is often ignored...

Growth and Development Summit

World Summit for Sustainable Development