Lehr- und Forschungseinheit Informatik X
Rechnertechnik und Rechnerorganisation 

Second COSH Workshop on Co-Scheduling of HPC Applications

January 24, 2017

Organised by: Carsten Trinitis and Josef Weidendorfer Technische Universität München, Institut für Informatik

Co-located with HiPEAC 2017 Stockholm, Sweden, January 23-25, 2017

Supported by


The task of a high performance computing system is to carry out its calculations (mainly scientific applications) with maximum performance and energy efficiency.  Up until now, this goal could only be achieved by exclusively assigning an appropriate number of cores/nodes to parallel applications. As a consequence, applications had to be highly optimised in order to achieve even only a fraction of a supercomputer's peak performance which required huge efforts on the programmer side.

This problem is expected to become more serious on future exascale systems with millions of compute cores. Many of today's highly scalable applications will not be able to utilise an exascale system's extreme parallelism due to node specific limitations like e.g. I/O bandwidth. Therefore, to be able to efficiently use future supercomputers, it will be necessary to simultaneously run more than one application on a node. To be able to efficiently perform co-scheduling, applications must not slow down each other, i.e. candidates for co-scheduling could e.g. be a memory-bound and a compute bound application.

Within this context, it might also be necessary to dynamically migrate applications between nodes if e.g. a new application is scheduled to the system.

In order to be able to monitor performance and energy efficiency during operation, additional sensors are required. These need to be correlated to running applications to deliver values for key performance indicators.

Main topics

Exascale architectures, supercomputers, scheduling, performance sensors, energy efficiency, task migration

Important Dates

Paper Submission deadline: November 22, 2016

Notification: December 5, 2016

Camera ready: December 15, 2016

Workshop: January 23-25, 2017

Paper submission
Workshop papers must not exceed 6 single-spaced, double-column pages in ACM style (including figures and references).
Submit your paper here.
Accepted papers will be published online in the TUM library. Upon acceptance of the submission, at least one author is required to register for the HiPEAC 2017 conference.

Carsten Trinitis and josef Weidendorfer
Lehrstuhl für Rechnertechnik und Rechnerorganisation
Institut für Informatik
Technische Universität München
Boltzmannstr. 3, 85748 Garching bei München
Phone: +49 89 289 18458

E-Mail: {Carsten.Trinitis | Josef.Weidendorfer} <at> tum.de