6 Jul 2015

DAS-5 is now fully operational! To make room for DAS-5, DAS-4/UvA and DAS-4/ASTRON have been decomissioned, only their headnodes remain available.

28 Oct 2014

The Hadoop setup on DAS-4/VU has been updated to version 2.5.0.

30 Jan 2014

The Intel OpenCL package for Intel CPU's and Xeon Phi has been updated to version 3.2.1.

3 Sep 2013

The Nvidia CUDA development kit has been updated to version 5.5.

25 April 2013

Slides of the DAS-4 workshop presentations are now available.

14 Jan 2013

DAS-4/VU now has 8 new nodes with latest Nvidia K20 GPU.

Xeon Phi

DAS-4 contains a small number of nodes with Intel Xeon Phi accelerator (see Special Nodes) which can be programmed using various paradigms and computation offloading methods, including OpenCL and OpenMP.

For OpenCL support, the opencl-intel module can be used, as documented on the DAS-4 GPU page. For most other approaches to use the Xeon Phi (also referred to as MIC), we refer to the extensive documentation provided by Intel.

Several programming models require use of a special Intel compiler, e.g., to support the Xeon Phi computer architecture itself, to implement pragma based auto-parallelization techniques (OpenMP) or other approaches to parallelization (e.g., TBB, Cilk). The latest Intel compiler set (release 13.3/2013.3.163) supporting the Xeon Phi can be added to your environment on DAS-4 as follows:

$ module load intel/compiler/64/13.3/2013.3.163

This command is also required for setting up the environment such that offloading to the Xeon Phi works correctly. The same command should be put in your job script, as explained in the DAS-4 jobs documentation.