International Workshop on

Runtime and Operating Systems for Supercomputers

ROSS 2019

Held in conjunction with HPDC 2019, Phoenix, Arizona, USA, June 25, 2019


  • July 1, 2019: The workshop took place in Phoenix, Arizona, USA. Post-workshop materials (slides, proceedings links, pictures) are available on the Program page.
  • June 14, 2019: A preliminary workshop program has been posted. We accepted 4 submissions and will also have 3 invited talks, plus the keynote.
  • March 5, 2019: The deadline has been extended to March 29, 2019.
  • March 4, 2019: The keynote this year will be delivered by Jidong Zhai from Tsinghua University, China.


The complexity of node architectures in supercomputers increases as we cross petaflop milestones on the way towards Exascale. Increasing levels of parallelism in multi- and many-core chips and emerging heterogeneity of computational resources coupled with energy and memory constraints force a reevaluation of our approaches towards operating systems and runtime environments.

The International Workshop on Runtime and Operating Systems for Supercomputers provides a forum for researchers to exchange ideas and discuss research questions that are relevant to upcoming supercomputers. In addition to typical workshop publications, we encourage novel and possibly immature ideas, provided that they are interesting and on-topic. Well argued position papers are also welcome.

Topics of Interest

The topics include, but are not limited to:
  • OS and runtime system scalability on many-node and multi/many-core systems
  • management of heterogeneous and reconfigurable compute resources, including FPGAs, GPUs, etc.
  • distributed/hybrid/partitioned OSes and runtime systems for Supercomputing
  • system noise analysis and prevention
  • interaction between middleware, runtime system, and the OS
  • modeling and performance analysis of runtime systems
  • OS and runtime considerations for large-volume, high-performance I/O
  • memory management and emerging memory technologies
  • the role of OS and runtime system in minimizing power usage
Please see the submissions page for more information.