CRESCO2
================================

The **CRESCO2 cluster**, located in Portici, was part of the ENEA HPC
infrastructure and was **decommissioned on December 31, 2015**.


System Overview
---------------

CRESCO2 was composed of compute nodes based on **IBM HS21 blade servers**
equipped with **Intel Nehalem and Intel Westmere processors**.

The system was interconnected through an **InfiniBand network** and integrated
within the ENEA HPC infrastructure.

Hardware Description
--------------------

Description of **256 Clovertown nodes** decommissioned on **18/11/2014**.

**Compute nodes**
N. nodi: 56 Nodi blade IBM HS21
Processors: 2 Xeon Quad-Core Nehalem E5530
RAM: 16 Gbyte RAM
Clock: 2.40GHz / 8MB L3
InfiniBand network
Totale: 448 core Intel Nehalem

**Compute nodes**

N. nodi: 28 Nodi blades IBM HS21
Processors: 2 Xeon Quad-Core Westmere E5620
RAM: 16 Gbyte RAM
Clock: 2.40GHz / 8MB L3
InfiniBand network
Totale: 224 core Intel Westmere

System Architecture
-------------------

Block architecture of the **CRESCO HPC system**.

.. figure:: clusters/cresco2_image1.png
   :align: center
   :width: 80%


Node Architecture (Nehalem E5530)
---------------------------------

Architecture diagram of the **Nehalem E5530** processor.

.. figure:: clusters/cresco2_image2.png
   :align: center
   :width: 80%


Node Architecture (Westmere E5620)
----------------------------------

Architecture diagram of the **Westmere E5620** processor.

.. figure:: clusters/cresco2_image3.png
   :align: center
   :width: 80%

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