====== Available Hardware ======

The COKA Cluster is made up of one master node acting as a login front-end and 4 compute nodes named:
// node01, node02, node03, node04 // 
In the compute nodes hyper-threading is disabled, although it is enabled in the login node. 

The computing hardware of one node can be summarized by this schema:
{{:users:nodo-cluster-schema.png?direct&350 | Topology of one node of the Cluster}}

Compute nodes are Supermicro [[http://www.supermicro.com/products/system/4u/4028/SYS-4028GR-TR.cfm|SYS-4028GR-TR]].
<WRAP center round box 40%>
Each node embeds:
  * 2 x Intel Xeon CPUs
  * 8 x NVIDIA K80 GPUs 
  * 2 x Mellanox ConnectX-3 Single FDR 56Gb/s Infiniband cards
  * 256 GB of RAM memory
  * 512 GB SSD mounted in /tmp 
</WRAP>

A more detailed view is given by the lstopo output:

{{ :users:node-topology.png?direct&600 | Detailed topology of the hardware of one node of the Cluster}}


===== Intel Xeon E5-2630v3 =====



Each node has two sockets, each equipped with an:

[[http://ark.intel.com/products/83356/Intel-Xeon-Processor-E5-2630-v3-20M-Cache-2_40-GHz|Intel® Xeon® Processor E5-2630 v3 (20M Cache, 2.40 GHz)]]

===== NVIDIA K80 ===== 

Each Cluster Node hosts 8 x NVIDIA K80 boards and each board hosts 2 actual GPUs, for a total of 16 CUDA devices.

[[http://www.nvidia.com/object/tesla-k80.html | NVIDIA Tesla K80]]

===== Mellanox ConnectX-3 =====

Each node has two MT27500 Family [ConnectX-3] Infiniband HCA:

[[http://www.mellanox.com/page/products_dyn?product_family=119&mtag=connectx_3_vpi|Mellanox Technologies MT27500 Family [ConnectX-3]]]