Sep 19 – 22, 2022
Paul Scherer Institute, Villigen, Switzerland
Europe/Zurich timezone

DARTS on-demand computing : heavy-duty data treatment for all

Sep 19, 2022, 4:40 PM
WHGA/Auditorium and online (Paul Scherer Institute, Villigen, Switzerland)

WHGA/Auditorium and online

Paul Scherer Institute, Villigen, Switzerland

Paul Scherrer Institute Forschungsstrasse 111 CH-5232-Villigen-PSI
Oral NOBUGS 2022


Emmanuel FARHI (Synchrotron SOLEIL)



The Data Analysis Remote Treatment Service (DARTS) [1] is a remote desktop service that launches virtual machines in the cloud, and displays them in your browser.

These machines can be used for e.g. scientific data treatment (reduction/analysis). A user indicates how many CPU cores and how much memory he wishes, can optionally request a GPU for heavy-duty computations, and can be customized at start-up. The sessions typically start in about 10 seconds, and can be shared with colleagues within their life-time (typically 7 days). Each user can manage all his active sessions (connect, stop, share).

This service can be installed and configured within a few minutes (sudo apt install qemu-web-desktop), and it requires minimal maintenance. The source code is fully open-source, and relies on very simple elements (Apache web-server and QEMU). Give it a try !

We provide at Synchrotron SOLEIL a set of prepared environments with plenty of scientific software for e.g. crystallography, spectroscopy, imaging, tomography, etc. The usual environment is based on Debian/Ubuntu with hundreds of pre-installed scientific software and libraries. A Windows 10 system is also available. A specialized environment has also been set-up for AlphaFold protein structure prediction. These environments are available on the beam-lines, and connected to our data storage.


Email address of presenting author

Primary author

Emmanuel FARHI (Synchrotron SOLEIL)

Presentation materials