Deneb and its extension, Eltanin



Cluster specifications

Deneb is an Intel Xeon based cluster available to the EPFL comunity since November 17th, 2014. 

  • Peak performance: 293 TFLOPs (211 in CPUs, 92 in GPUs)
  • Total RAM: 37TB
  • Storage: 350TB

The cluster is composed of

  • two front ends,
  • two master nodes in charge of administration and backup,
  • 376 compute nodes, each with
    • 2 Ivy Bridge processors running at 2.6 GHz, with 8 cores each,
    • 64 GB of DDR3 RAM,
  • 144 compute nodes, each with
    • 2 Haswell processors running at 2.5 GHz, with 12 cores each
    • 64 GB of DDR4 RAM
  • 16 GPU accelerated nodes, each with 4 K40 NVIDIA cards
  • 8 large memory nodes, each with 256 GB of RAM
  • 2 NUMA nodes, each with 4 processors and 512 GB of RAM
  • Infiniband QDR 2:1 connectivity,
  • GPFS filesystem.


Accessing the machine

You can request an account for an individual user or for a class at the bottom of this page. If the links to the account request interface do not appear at the bottom of the page, you have to log in (link at the bottom right corner of the page).


Requesting access to the GPU nodes

In order to use the GPU nodes we request that you submit a description of the code you wish to use and the performance benefits expected. You will then be invited to meet our application and GPU experts to discuss your proposal. 



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