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The German Research School for Simulation Sciences GmbH (GRS) is a joint venture of Forschungszentrum Jülich and RWTH Aachen University, combining the specific strengths of the two founders in the fields of science, engineering, and high-performance computing in a unique synergistic way. Located in dedicated modern facilities on the Aachen and Jülich campuses and equipped with privileged access to world-class computing and visualisation resources, the school is committed to research and education in the applications and methods of HPC-based computer simulation in science and engineering. Affiliated with the computer science department of RWTH Aachen University, the Laboratory for Parallel Programming, one of the school's four research divisions, specialises in tools and middleware that support simulation scientists in exploiting parallelism at massive scales. The laboratory is also co-developer of the Scalasca performance-analysis tool leveraged in this proposal, concentrating on tool scalability and emerging programming models.


GRS was involved in the DEEP project and worked on middleware components presenting the combination of host and Cluster Booster as a single coherent system. Specifically, the GRS developed the protocol stack (i) for communication between host and remote accelerators, (ii) for inter-accelerator communication, and (iii) for accelerator resource management.

Learn about GRS.