Bits & Bytes online Edition

August 2017

Bits & Bytes

Max Planck Computing & Data Facility (MPCDF)
Gießenbachstr. 2, D-85748 Garching bei München

Singularity, an open-source container project, is currently of great interest to researchers who need a means of deploying reproducible containerized workflows in HPC environments. To facilitate the use of Singularity the MPCDF has installed the Singularity software on the Draco cluster and it is now available for researchers of the Max Planck Society and their collaborators.
In this article we will outline the main tools which are in general use for data transfers at MPCDF.
The MPCDF DataShare service for data sharing and synchronization can be used in several ways, e.g. via web interface ( and via desktop clients as described earlier. A third alternative exists in the form of WebDAV. Through the WebDAV protocol, any DataShare account can be mounted as a network drive into your local machine.
The operating system of the HPC extension system Draco was upgraded from SLES11 to SLES12. In the course of this upgrade several module defaults were changed, and the Python environment modules were restructured.
In software development Continuous Integration is the practice of integrating code into a shared repository and building or testing each change automatically, as early as possible, usually several times a day. Continuous Delivery adds that the software can be released to production at any time, often by automatically pushing changes to a staging system.
The MPCDF is organizing a workshop for teaching advanced HPC practices. It will take place from October 17th to 19th at the MPCDF in Garching. The MPCDF took part in organizing a) the International HPC Summer School on Challenges in Computational Sciences in Boulder, Colorado in June 2017 and b) the Envri+ Summer School on Data Management and Data Science in Espoo, Finland in July 2017.

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Editor: Renate Dohmen