Disruptive technologies

Scope: Disruption identification method and technologies that tackle such disruptions.

Challenges: EESI2 has identified 3 areas of concern:

• variability in resources (resource performance, resource availability),
• change in the level of abstraction in the way that applications are written
• change in the execution model, from synchronous to asynchronous.

Some technologies have been identified as source of disruption:

• in hardware: new memory or packaging,
• in software: virtualization

Path: Some technologies could tackle identified issues:

• auto-management mechanisms at system level,
• dynamic adaptation or malleable programming models with runtimes
• resource management that support variability,
• dynamic load balancing
• programming models that separate at application level the algorithmic part from the specificities of the resources (OmpSs, OpenACC, …)
• rapid prototyping programming environments (eDSLs, Perl, Python, …);
• runtimes that support asynchrony (as task-based, data-flow schedulers or non- blocking MPI communications).