CRESCO3
================================

Description of the **CRESCO3 cluster located in Portici**, decommissioned on **March 13, 2018**.

.. note::

   The decommissioned nodes of the **CRESCO3 cluster** have been generally reused in the **Cloud infrastructure of the DTE-ICT division**. Two chassis, for a total of **8 compute nodes**, are currently operating at the **Italian Antarctic base** as part of the system: CRESCO3 in Antarctica.

Cluster Features
----------------

The **CRESCO3 cluster** located in Portici is a computing system composed of **84 servers** with the following characteristics:

- **2 AMD® sockets** with **Opteron® 6234 processors**, **12 cores**, **2.4 GHz**, **64 GB RAM**
- **1 × 500 GB SATA II disk**
- **InfiniBand QDR interface**
- **Two Gigabit Ethernet interfaces**
- **1 video card**
- **BMC/IPMI 2.0 support** and software for **remote console management**

Overall, the system provides a total of **2016 CPU cores** interconnected through a **low-latency network based on InfiniBand 4xQDR at 40 Gbps**, managed by a **Qlogic 12800 switch**.

The architecture of the **AMD Opteron 6234** processor is illustrated in the following diagram.

.. image:: clusters/cresco3_image1.jpg
   :align: center
   :width: 1600px

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