Year 2020

• Investigation into MPI All-Reduce Performance in a Distributed Cluster with Consideration of Imbalanced Process Arrival Patterns

  Publication

  • J. Proficz
  • P. Sumionka
  • J. Skomiał
  • M. Semeniuk
  • K. Niedzielewski
  • M. Walczak

  - Advances in Intelligent Systems and Computing - Year 2020

  The paper presents an evaluation of all-reduce collective MPI algorithms for an environment based on a geographically-distributed compute cluster. The testbed was split into two sites: CI TASK in Gdansk University of Technology and ICM in University of Warsaw, located about 300 km from each other, both connected by a fast optical fiber Ethernet-based 100 Gbps network (900 km part of the PIONIER backbone). Each site hosted a set...

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• Long Distance Geographically Distributed InfiniBand Based Computing

  Publication

  • K. Niedzielewski
  • M. Semeniuk
  • J. Skomiał
  • J. Proficz
  • P. Sumionka
  • B. Pliszka
  • M. Michalewicz

  - Supercomputing Frontiers and Innovations - Year 2020

  Collaboration between multiple computing centres, referred as federated computing is becom- ing important pillar of High Performance Computing (HPC) and will be one of its key components in the future. To test technical possibilities of future collaboration using 100 Gb optic fiber link (Connection was 900 km in length with 9 ms RTT time) we prepared two scenarios of operation. In the first one, Interdisciplinary Centre for Mathematical...

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